Datasheet PCD3332-2P, PCD3332-2T, PCD3332-3T, PCD3332-SP, PCD3332-ST Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

PCD3332-2; PCD3332-3;
PCD3332-S

Multistandard pulse/tone repertory
diallers/ringers

Product specification
File under Integrated Circuits, IC03

1997 Jan 13

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

CONTENTS

1 FEATURES
2 GENERAL DESCRIPTION
3 ORDERING INFORMATION
4 PINNING

4.1 PCD3332-2

4.2 PCD3332-3

4.3 PCD3332-S
5 FUNCTIONAL DESCRIPTION

5.1 Pin description

5.1.1 Supply terminals (VDD and VSS)

5.1.2 Oscillator input/output (XTAL1 and XTAL2)

5.1.3 Chip enable and frequency discriminator input
(CE/FDI)

5.1.4 Cradle switch input (CSI)

5.1.5 Reset input (RESET)

5.1.6 Pulse dial and flash output (DP/FL)

5.1.7 Mute output (MUTE)

5.1.8 DTMF output (TONE)

5.1.9 Register recall (EARTH)

5.1.10 Ringer Tone Enable (RTE: PCD3332-2/S)

5.1.11 Hands-Free/Ringer Tone Enable

(HF/RTE: PCD3332-3)

5.1.12 Volume control outputs (VOL1 and VOL2)

5.1.13 Ringer volume settings

5.1.14 Dial Mode Output /Key-Tone Enable
(DMO/KTE)

5.1.15 Keyboard inputs/outputs

5.2 Keyboards

5.2.1 Keyboard function keys

5.2.2 Diode options

5.2.3 Hook modes

6 OPERATING PROCEDURES

6.1 Operating modes

6.1.1 On-hook mode or ringer mode

6.1.2 Dial mode

6.1.3 Reset delay time

6.1.4 Programming mode

6.1.5 Ringer mode (PCD3332-2)

6.1.6 Ringer mode (PCD3332-3/S)

7 LIMITING VALUES
8 CHARACTERISTICS
9 PACKAGE OUTLINES
10 SOLDERING

10.1 Introduction

10.2 DIP

10.2.1 Soldering by dipping or by wave

10.2.2 Repairing soldered joints

PCD3332-2; PCD3332-3;

PCD3332-S

10.3 SO

10.3.1 Reflow soldering

10.3.2 Wave soldering

10.3.3 Repairing soldered joints
11 DEFINITIONS
12 LIFE SUPPORT APPLICATIONS

1997 Jan 13 2

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

1 FEATURES

• Pulse, DTMF and VT ‘mixed mode’ dialling

• 13 number repertory dial, up to 32 digits per number

– 10 one-touch redial or 3 one-touch plus 10 two-touch
– 250 digits maximum storage

• Last number redial up to 32 digits

• Repertory and redial memory integrity check (memory

contents check)

• Notepad memory function

• Flash and Earth register recall

• Access pause generation and termination

• On-chip power-on reset

• Supports function keys as follows:

– STORE: Program/Store
– MRC: Memory Recall
– FLASH: calibrated line-break pulse
– LNR: Last Number Redial
– PAUSE: insert access pause between stored digits
– TONE: change from pulse to DTMF dialling (mixed

mode)
– VOL+/−: speaker/ringer volume control
– 10 dedicated memory keys

• Strap functions (diode options):
– MLA: Memory Location Access selection
– RDS: Enable/Disable ringer validation delay

(PCD3332-2)

– DOO: enable/disable transmission ∗ or #

(PCD3332-3/S)

PCD3332-2; PCD3332-3;

PCD3332-S

– F/E: register recall Flash or Earth
– M/S: Mark-to-Space ratio selection (3:2or2:1)
– APT: Access Pause Timing selection
– TBT: Tone Burst Time selection
– FTS: Flash Time Selection
– P/T: Pulse or Tone (DTMF) mode selection
– RMS: Ringer Melody Selection (PCD3332-2 and

PCD3332-S)

– RFS: Ringer input frequency range selection

(19.5 to 57 Hz or 14.4 to 68 Hz) (PCD3332-3)

• Ringer tone generator

• Ringer-input frequency discriminator

• Ringer melody selection via keypad

• Volume control for loudspeaker phones (PCD3332-3)

• On-hook dialling/hands-free mode control (PCD3332-3)

• Pacifier tones.

2 GENERAL DESCRIPTION

The PCD3332-2, PCD3332-3 and PCD3332-S are
mixed-mode multistandard repertory dialler/ringer ICs,
fabricated in a low threshold voltage CMOS technology.
Dial parameters of these ICs can be set by diode options
to meet the specific requirements for various countries.
The on-chip tone generators are used for DTMF dialling
and ringer melody generation. A discriminator input
enables the tone output only if a correct ringer frequency
is applied. Repertory numbers of up to 32 digits can be
stored, with maximum storage of 250 digits.

3 ORDERING INFORMATION

TYPE

NUMBER

PCD3332-2P DIP28 plastic dual in-line package; 28 leads (600 mil) SOT117-1
PCD3332-2T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1
PCD3332-3P DIP28 plastic dual in-line package; 28 leads (600 mil) SOT117-1
PCD3332-3T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1
PCD3332-SP DIP28 plastic dual in-line package; 28 leads (600 mil) SOT117-1
PCD3332-ST SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1

1997 Jan 13 3

NAME DESCRIPTION VERSION

PACKAGE

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

4 PINNING

4.1 PCD3332-2
SYMBOL PIN TYPE DESCRIPTION

(2)

(4)
(4)

(2)
(4)
(3)

(3)
(4)
(4)

(1)
(1)
(1)

(1)

(1)
(1)
(1)
(1)
(1)
(1)

(1)

row 2 keyboard output
row 3 keyboard output
row 4 keyboard output
row 5 keyboard output
diode option
mute output
earth recall

column 6 input
column 5 input
column 4 input
column 3 input
column 2 input
column 1 input
dial pulse/flash output
not used, leave pin unconnected
volume 2 output

volume 1 output
dial mode output
key/ringer tone enable
row 1 keyboard output

ROW2 1 I/O
ROW3 2 I/O
ROW4 3 I/O
ROW5 4 O
DIODE 5 I/O
MUTE 6 O
EARTH 7 O
CSI 8 I cradle switch input
XTAL1 9 I oscillator input
XTAL2 10 O oscillator output
RESET 11 I reset input
CE/FDI 12 I chip enable/frequency discriminator
COL6 13 I/O
COL5 14 I/O
COL4 15 I/O
COL3 16 I/O
COL2 17 I/O
COL1 18 I/O
DP/FL 19 O
not used 20 O
VOL2 21 O
V

SS

22 P ground
TONE 23 O tone generator output
V

DD

24 P positive supply voltage
VOL1 25 O
DMO/KTE 26 O
RTE 27 O
ROW1 28 I/O

PCD3332-2; PCD3332-3;

PCD3332-S

ge

EARTH

RESET

CE/FDI

1

ROW2

2

ROW3

3

ROW4

4

ROW5

DIODE

5
6

MUTE

7

PCD3332-2

8

CSI

9

XTAL1

10

XTAL2

11
12
13

COL6

14

COL5

MBE757

Fig.1 Pin configuration.

28
27
26
25
24
23
22
21
20
19
18
17
16
15

ROW1
RTE
DMO/KTE
VOL1
V

DD

TONE
V

SS

VOL2
not used
DP/FL
COL1
COL2
COL3
COL4

Notes on types and initial states of inputs and outputs

1. Standard input or output, set to HIGH state.

2. Open-drain output, set to HIGH state.

3. Open-drain output, reset to LOW state.

4. Push-pull output, reset to LOW state.

1997 Jan 13 4

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

4.2 PCD3332-3
SYMBOL PIN TYPE DESCRIPTION

ROW2 1 I/O
ROW3 2 I/O
ROW4 3 I/O
ROW5 4 O
DIODE 5 I/O
MUTE 6 O
EARTH 7 O

(1)
(1)
(1)

(2)

(1)
(4)
(4)

CSI 8 I cradle switch input
XTAL1 9 I oscillator input
XTAL2 10 O oscillator output
RESET 11 I reset input
CE/FDI 12 I chip enable/frequency discriminator
COL6 13 I/O
COL5 14 I/O
COL4 15 I/O
COL3 16 I/O
COL2 17 I/O
COL1 18 I/O
DP/FL 19 O
LFE 20 O
VOL2 21 O
V

SS

22 P ground

(1)

(1)

(1)

(1)

(1)

(1)
(2)
(4)
(3)

TONE 23 O tone generator output
V

DD

VOL1 25 O
DMO/KTE 26 O
HF/RTE 27 O
ROW1 28 I/O

24 P positive supply voltage

(3)
(4)
(4)

(1)

row 2 keyboard output
row 3 keyboard output
row 4 keyboard output
row 5 keyboard output
diode option
mute output
earth recall

column 6 input
column 5 input
column 4 input
column 3 input
column 2 input
column 1 input
dial pulse/flash output
low-frequency amplifier enable
volume 2 output

volume 1 output
dial mode output
hands-free/ringer tone enable
row 1 keyboard output

PCD3332-2; PCD3332-3;

PCD3332-S

ge

DIODE

EARTH

RESET
CE/FDI

1

ROW2

2

ROW3

3

ROW4

4

ROW5

5
6

MUTE

7

PCD3332-3

8

CSI

9

XTAL1

10

XTAL2

11
12
13

COL6

14

COL5

MBE752

Fig.2 Pin configuration.

28
27
26
25
24
23
22
21
20
19
18
17
16
15

ROW1
HF/RTE
DMO/KTE
VOL1
V

DD

TONE
V

SS

VOL2
LFE
DP/FL
COL1
COL2
COL3
COL4

Notes on types and initial states of inputs and outputs

1. Standard input or output, set to HIGH state.

2. Open-drain output, set to HIGH state.

3. Open-drain output, reset to LOW state.

4. Push-pull output, reset to LOW state.

1997 Jan 13 5

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

4.3 PCD3332-S
SYMBOL PIN TYPE DESCRIPTION

ROW2 1 I/O
ROW3 2 I/O
ROW4 3 I/O
ROW5 4 O
DIODE 5 I/O
MUTE 6 O
EARTH 7 O

(1)
(1)
(1)

(2)

(1)
(4)
(4)

CSI 8 I cradle switch input
XTAL1 9 I oscillator input
XTAL2 10 O oscillator output
RESET 11 I reset input
CE/FDI 12 I chip enable/frequency discriminator
COL6 13 I/O
COL5 14 I/O
COL4 15 I/O
COL3 16 I/O
COL2 17 I/O
COL1 18 I/O
DP/FL 19 O
not used 20 O
VOL2 21 O
V

SS

22 P ground

(1)

(1)

(1)

(1)

(1)

(1)
(2)
(4)
(3)

TONE 23 O tone generator output
V

DD

VOL1 25 O
DMO/KTE 26 O
RTE 27 O
ROW1 28 I/O

24 P positive supply voltage

(3)
(4)
(4)

(1)

row 2 keyboard output
row 3 keyboard output
row 4 keyboard output
row 5 keyboard output
diode option
mute output
earth recall

column 6 input
column 5 input
column 4 input
column 3 input
column 2 input
column 1 input
dial pulse/flash output
not used, leave pin unconnected
volume 2 output

volume 1 output
dial mode output
key/ringer tone enable
row 1 keyboard output

PCD3332-2; PCD3332-3;

PCD3332-S

age

EARTH

RESET
CE/FDI

1

ROW2

2

ROW3

3

ROW4

4

ROW5

DIODE

5
6

MUTE

7

PCD3332-S

8

CSI

9

XTAL1

10

XTAL2

11
12
13

COL6

14

COL5

MBE754

Fig.3 Pin configuration.

28
27
26
25
24
23
22
21
20
19
18
17
16
15

ROW1
RTE
DMO/KTE
VOL1
V

DD

TONE
V

SS

VOL2
not used
DP/FL
COL1
COL2
COL3
COL4

Notes on types and initial states of inputs and outputs

1. Standard input or output, set to HIGH state.

2. Open-drain output, set to HIGH state.

3. Open-drain output, reset to LOW state.

4. Push-pull output, reset to LOW state.

1997 Jan 13 6

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5 FUNCTIONAL DESCRIPTION

References to the ‘PCD3332’ or the ‘device’ apply to the
PCD3332-2, the PCD3332-3 and the PCD3332-S.

5.1 Pin description

5.1.1 S
To retain data in the RAM, the standby supply voltage of

1 V, must be maintained. To ensure that the contents of
the RAM are secure in the event of a power failure, a
capacitor may be connected across the supply terminals.
The capacitor must have a suitable value to maintain the
standby voltage for a certain period of time. The minimum
operating voltage of these devices is 2.5 V. The internal
power-on reset is enabled for a voltage below this
minimum operating voltage.

5.1.2 O
The time base for the PCD3332 is a crystal-controlled

on-chip oscillator, which incorporates a 3.58 MHz crystal
or ceramic resonator connected between XTAL1 and
XTAL2. It should be noted that when using a ceramic
resonator, the minimum supply voltage increases.
The oscillator starts when VDD reaches its operating
voltage level and CE = HIGH (min. 2.5 V).

5.1.3 C

For DC inputs this pin acts as the chip enable (CE) input,
and is active HIGH. CE in combination with the Cradle
Switch Input (CSI) determines the mode of the device.
See Table 1.

For AC inputs the pin acts as the (ringer) Frequency
Discriminator Input (FDI).

To generate a correct ringer output tone, the input
frequency must be between 19.5 Hz and 57 Hz;
frequencies below 18 Hz and higher than 64 Hz are
omitted.

The PCD3332-3 has a second (diode selectable) range of
valid input frequencies of 14.5 Hz to 68 Hz; frequencies
below 14 Hz and higher than 76 Hz are omitted.

Ringer response timing and detection is illustrated in
Fig.15.

UPPLY TERMINALS (VDDAND V

SCILLATOR INPUT/OUTPUT (XTAL1 AND XTAL2)

HIP ENABLE AND FREQUENCY DISCRIMINATOR

(CE/FDI)

INPUT

SS

)

PCD3332-2; PCD3332-3;

PCD3332-S

5.1.4 C
CSI is normally generated from the physical ‘off-hooking’

of the phone. CSI in combination with CE/FDI determines
the operating mode of the PCD3332, as shown in Table 1.

Table 1 Different modes of the PCD3332

INPUT CSI INPUT CE/FDI PCD3332 STATUS

5.1.5 R
RESET activates the on-chip reset circuit and is active

HIGH. The reset circuit initializes all inputs and outputs.
Two other events will cause the chip to initialize:

• CE going HIGH

• VDD falling below 2.5 V, then being restored (power-on

reset).

For this reason, RESET may not be required, and can be
connected to VSS. This should preferably be via a 100 kΩ
resistor, to save leakage current.

Note that a suitable capacitor connected between VDD and
VSS will inhibit the decrease of voltage at VDD after a power
failure, and thus extend the time until the power-on reset is
initiated.

5.1.6 P
This pin is the output for:

• The dial pulse sequence (DP)

• The calibrated LOW pulse (FL) after the FLASH key is

pressed.

The dialling sequence for pulse dialling is shown in Figs 11
and 12. DP/FL starts HIGH, pulses are LOW, and the
inter-digit pauses are HIGH. Thus, DP/FL is HIGH during
a line-make and LOW during a line-break.

If the Flash/Earth diode option is set to FLASH, then when
FLASH is pressed a LOW pulse is output, with a calibrated
duration also determined by diode option.

RADLE SWITCH INPUT (CSI)

LOW LOW stop or power-down

mode

HIGH LOW idle mode

LOW HIGH ringer mode

HIGH HIGH conversation or

off-hook mode

ESET INPUT (RESET)

ULSE DIAL AND FLASH OUTPUT (DP/FL)

1997 Jan 13 7

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5.1.7 MUTE OUTPUT (MUTE)
During the dialling sequence this push-pull output is

activated. In the pulse dialling mode, MUTE goes HIGH
prior to the dialling action and goes LOW after the last
t

(interdigit pause), see Figs 11 and 12. In DTMF

idp

dialling, MUTE goes HIGH prior to the dialling action and
goes LOW after an additional ‘holdover’ time, see
Figs 13 and 14.

This output is also activated if the device enters the
programming mode, to avoid transmitting the keys
entered.

5.1.8 DTMF
The timing sequence for DTMF dialling is illustrated in

Figs 13 and 14. The tones generated by this TONE are
filtered by an on-chip switched capacitor filter, and active

Table 2 DTMF frequency tolerances

ROW/COL

ROW 1 697 697.90 +0.13 +0.90
ROW 2 770 770.46 +0.06 +0.46
ROW 3 852 852.45 −0.18 −1.55
ROW 4 941 943.23 +0.24 +2.23
COL 1 1209 1206.45 −0.21 −2.55
COL 2 1336 1341.66 +0.42 +5.66
COL 3 1477 1482.21 +0.35 +5.21

OUTPUT (TONE)

STANDARD

FREQUENCY (Hz)

FREQUENCY (Hz)

RC low-pass filter. Therefore, the total harmonic distortion
fulfils the CEPT CS203 recommendations. An on-chip
reference voltage provides output tone levels independent
of supply voltages and temperatures. Spread among the
individual parts is extremely low.

The DC level of the TONE output measures 0.5V
the impedance is 100 Ω (typ.). Table 2 shows the
frequency tolerances.

The TONE output is also used to generate the ringer
melody, key entry acceptance beep, error or warning
beeps and confirmation beeps. These beeps are
generated/set in programming mode as a response to the
users action. The ringer is designed to generate
3-melodies that may be selected using the keyboard.
Table 3 shows the implemented ringer melodies.

OUTPUT

PCD3332-2; PCD3332-3;

PCD3332-S

DEVIATION

(%)

DEVIATION

(Hz)

DD

and

Table 3 Ringer melodies

KEY DEPRESSED TONE 1 (Hz) TONE 2 (Hz) TONE 3 (Hz) TONE ON TIME (ms)

1 826 925 1037 30
2 1037 1161 1297 30
3 1297 1455 1621 30

Table 4 Beep frequencies

BEEP FUNCTION TONE 1 (Hz) TONE 2 (Hz) TONE 3 (Hz) TONE ON TIME (ms)

Key accept 2358 −− 40 −
Error 2358 2358 2358 134 35
Confirmation 806 899 1010 134 67

1997 Jan 13 8

TONE OFF TIME

(ms)

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5.1.9 REGISTER RECALL (EARTH)
If the Flash/Earth diode option of the PCD3332 is set to the

Earth, then dialling the EARTH either out of
Repertory/LNR or by pressing the FLASH key will
generate a HIGH pulse at the push-pull output EARTH for
a calibrated time. Figures 12 and 14 illustrate the EARTH
timing relationship with other signals. The calibrated
EARTH time is followed by an interdigit time t
dialling of EARTH can only be performed after the interdigit
time has elapsed.

If the Flash key was the first key depressed directly after
going off-hook, followed by a second depressing of the
Flash key while the EARTH is still in progress, then the
second depression will be ignored.

5.1.10 R
The PCD3332-2 and PCD3332-S generate tones for the

ringer output stage and key tones when depressing a
function key at the keypad. Output RTE will go HIGH and
stay HIGH for the duration of the tone generated at output
TONE.

5.1.11 H

The PCD3332-3 generates tones for the ringer output
stage and key tones when depressing a function key at the
keypad. Output HF/RTE will go HIGH and stay HIGH for
the duration of the tone generated at output TONE.

During the conversation mode, HF/RTE is used for
enabling the hands-free mode. Depressing the HOOK key
will change the operation mode as follows:

• Change from on-hook (stop mode) to hands-free mode

• Toggles the listening-in mode

• Change from handset to hands-free.

5.1.12 V

INGER TONE ENABLE (RTE: PCD3332-2/S)

ANDS-FREE/RINGER TONE ENABLE (HF/RTE:

PCD3332-3)

OLUME CONTROL OUTPUTS (VOL1 AND VOL2)

5.1.12.1 PCD3332-2

. A second

idp

PCD3332-2; PCD3332-3;

PCD3332-S

Table 5 shows the volume outputs setting, as well as the
default setting in case of a power failure or if the power is
supplied for the first time.

5.1.12.2 PCD3332-3

The PCD3332-3 has the facility to control the ringer output
signal and the loudspeaker signal during listening-in or
hands-free operation. Depressing the keys VOL− or VOL+
during the ringer mode will change the ringer volume
setting. Depressing the keys VOL− or VOL+ during the
conversation mode will change the loudspeaker volume
setting.

If the maximum volume level is reached, depressing the
VOL+ key will not change the volume setting. If the
minimum volume level is reached, depressing the VOL−
key will not change the volume setting. Selection between
ringer volume or conversation mode volume, is performed
in the hardware using the HF/RTE output. In the ringer
mode the output HF/RTE is HIGH.

Table 5 shows the volume outputs setting, as well as the
default setting in case of a power failure or if the power is
supplied for the first time.

5.1.12.3 PCD3332-S

The PCD3332-S has the facility to control the ringer output
signal by depressing the keys VOL− or VOL+ during the
ringer mode.

If the maximum volume level is reached, depressing the
VOL+ key will not change the volume setting. If the
minimum volume level is reached, depressing the VOL−
key will not change the volume setting. Selection between
ringer volume or conversation mode volume, is performed
in the hardware using the RTE output. In the ringer mode
the output RTE is HIGH.

Table 5 shows the volume outputs setting, as well as the
default setting in case of a power failure or if the power is
supplied for the first time.

The PCD3332-2 has the facility to control the ringer output
signal, as well as the loudspeaker volume, by depressing
the keys ∗/VOL− or #/ VOL+ during the ringer mode.

If the maximum volume level is reached, depressing
#/VOL+ key will not change the volume setting. If the
minimum volume level is reached, depressing ∗/VOL− key
will not change the volume setting. Selection between
ringer volume or conversation mode volume, is performed
in the hardware using the RTE output. In the ringer mode
the output RTE is HIGH.

1997 Jan 13 9

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5.1.13 RINGER VOLUME SETTINGS

handbook, halfpage

Fig.4 FSM for volume control (PCD3332-2).

VOL+/#

VOL+/#

VOL+/#

VOL+/#

MGC616

DEFAULT

VOLUME

HIGH

VOLUME

LOW

VOLUME

LOWEST
VOLUME

VOL−/*

VOL−/*

VOL−/*

VOL−/

*

PCD3332-2; PCD3332-3;

PCD3332-S

Table 5 State assignment

STATE VOL2 VOL1

Default volume setting HIGH HIGH
High volume setting HIGH LOW
Low volume setting LOW HIGH
Lowest volume setting LOW LOW

5.1.14 D

In the PULSE dialling mode the DMO/KTE output is
activated (HIGH), at dialling the Make/Brake pulse dial
sequences. Figures 11 and 12 illustrate the signal timing
relationship.

In the programming mode, the DMO/KTE output is
activated at the same time the key beeps are generated at
output TONE and may be used to enable the key tone to
the earpiece amplifier.

5.1.15 K
A single contact keyboard with a maximum of 6 columns

and 5 rows can be connected to the PCD3332-2.
The keyboard scanning is started if a key depression is
detected. The rows are scanned while the columns are
used as sense inputs.

IAL MODE OUTPUT /KEY-TONE ENABLE

(DMO/KTE)

EYBOARD INPUTS/OUTPUTS

handbook, halfpage

VOL+

VOL+

VOL+

VOL+

MGC615

DEFAULT

VOLUME

HIGH

VOLUME

LOW

VOLUME

LOWEST
VOLUME

VOL−

VOL−

VOL−

VOL−

Fig.5 FSM for volume control (PCD3332-3/S).

To overcome key bouncing, a debounce on/off time of
approximately 14 to 20 ms is implemented.

Only one single key depression is validated and accepted
at any one time. Once a key is accepted the keyboard
scanning is continued until no further keys are depressed.
This means that if a key is accepted but still depressed
while a second key is entered, the second key depression
is ignored. Also, if two or more keys are depressed within
the debounce time while no key is yet accepted, all keys
are ignored.

Keyboard detection is also performed in the ringer mode to
enable the ringer volume setting and ringer melody
selection.

In the on-hook mode or power-down mode of the
PCD3332-2 and PCD3332-S, the keyboard I/Os are set to
HIGH except ROW 5 which is set to LOW.

1997 Jan 13 10

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

In the on-hook mode or power-down mode of the
PCD3332-3, the keyboard I/Os are set to HIGH except
ROW 5 which is set to LOW. In this instance, depression
of the HOOK key can be detected by the external
hardware circuitry and converted to an active HIGH signal
which is passed to CE in order to ‘wake-up’ the
PCD3332-3.
When the HOOK key has been accepted the PCD3332-3
enters the hands-free mode.

5.2 Keyboards

handbook, full pagewidth

ROW 1

COL 1 COL 2 COL 3 COL 4 COL 5

1

2

3

PCD3332-2; PCD3332-3;

PCD3332-S

ROW 5 was used to detect the HOOK key, this function is
deleted.

ROW 5 is an open-drain input, this configuration is used to
avoid current flowing in the on-hook mode or power-down
mode. A pull-up resistor should be connected to ROW 5.

The keyboards which the PCD3332-2, PCD3332-3 and
PCD33332-S support are shown in Figs 6, 7 and 8
respectively. The figures also show the diode options as
‘dotted’ keys.

COL 6

STORE

M1

M2

FTS A

ROW 2

ROW 3

ROW 4

ROW 5

Diode

4

7

*

FLASH

M/S

5

8

0

PAUSE

F/E

6

9

#

LNR

RDS

TONE

VOL

VOL

MLA

M3

M5

M7

M9

APT

Fig.6 Keyboard layout (PCD3332-2).

M4

MRC

M6

M8

M10

PTS

FTS B

TBT A

TBT B

RMS

MBE756

1997 Jan 13 11

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

handbook, full pagewidth

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

Diode

COL 1 COL 2 COL 3 COL 4 COL 5

1

4

7

*

FLASH

M/S

2

5

8

0

PAUSE

F/E

3

6

9

#

LNR

DOO

STORE

TONE

VOL

VOL

HOOK

MLA

PCD3332-2; PCD3332-3;

PCD3332-S

COL 6

M1

M3

M5

M7

M9

APT

M2

M4

MRC

M6

M8

M10

PTS

FTS A

FTS B

TBT A

TBT B

RFS

MBE751

handbook, full pagewidth

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

Diode

Fig.7 Keyboard layout (PCD3332-3).

COL 1 COL 2 COL 3 COL 4 COL 5

1

4

7

*

FLASH

M/S

2

5

8

0

PAUSE

F/E

3

6

9

#

LNR

DOO

STORE

TONE

VOL

VOL

MLA

M1

M3

M5

M7

M9

APT

COL 6

M2

M4

MRC

M6

M8

M10

PTS

FTS A

FTS B

TBT A

TBT B

RMS

MBE755

Fig.8 Keyboard layout (PCD3332-S).

1997 Jan 13 12

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5.2.1 KEYBOARD FUNCTION KEYS

5.2.1.1 LNR

If the first key operated after CE = HIGH (off-hook) is key
LNR the PCD3332 will transmit the last number dialled
before CE was LOW (on-hook).

5.2.1.2 PAUSE

Pressing the PAUSE key will insert an access pause
during manual dialling and/or during programming. During
manual dialling the pause time is not dialled, but is stored
in the redial memory. This means that with manual dialling
the user actually waits for the dial tone before dialling is
continued. Repertory and LNR dialling however, will dial
out the access pause. If the pause key is depressed while
an access pause is being dialled, the access pause in
progress is terminated and dialling will continue at the next
non-access pause digit. The access pause duration is
option selectable.

PCD3332-2; PCD3332-3;

PCD3332-S

5.2.2 D
Table 6 Tone Burst Time diode configuration

Not connected not connected 70/70
Not connected connected 100/100
Connected not connected 85/85
Connected connected 70/140

Table 7 Flash time select diode configuration

Not connected not connected 95
Not connected connected 115
Connected not connected 270
Connected connected 600

IODE OPTIONS

TBT A

DIODE

FTS A

DIODE

TBT B

DIODE

FTS B

DIODE

SELECTED

TIMING (ms)

SELECTED

TIMING (ms)

5.2.1.3 TONE (mixed mode dialling)

If the pulse dial mode is selected by the diode option, then
pressing the ‘TONE’, ‘∗’ or ‘#’ keys will change the dial
mode to DTMF. Pressing the Flash key or going on-hook
will restore the pulse dial mode.

5.2.1.4 RECALL (Flash or Earth)

Depressing the FLASH key will activate output DP/FL or
output EARTH for the calibrated time, depending on which
function Flash or Earth is selected.

5.2.1.5 STORE

Pressing the STORE key will start/stop the programming
mode. To inhibit transmitting the key entries while in
programming mode, the output and MUTE is activated.

5.2.1.6 MRC

In order to access one of the memory locations, the MRC
key must be depressed followed by one of the numerical
keys 0 to 9. To enable the MRC key, diode option MLA
must be disconnected.

5.2.1.7 VOL− and VOL

For the PCD3332-3’s ‘hands-free’ and ‘listening-in’ modes,
where the loudspeaker is on, the VOL keys control the
loudspeaker volume. In the ringer mode (all devices), the
VOL keys control the ringer volume.

+

Table 8 Flash/Earth diode configuration

F/E DIODE SELECTED MODE

Not connected Flash
Connected Earth (400 ms)

Table 9 Mark/space diode configuration

M/S DIODE

Not connected 33/66 (1 : 2)
Connected 40/60 (2 : 3)

Table 10 Pulse/tone diode configuration

P/T DIODE SELECTED DIAL MODE

Not connected DTMF
Connected Pulse

Table 11 Access Pause Time diode configuration

APT DIODE SELECTED TIMING (s)

Not connected 2
Connected 4

SELECTED MAKE/BRAKE RATIO

(ms)

At power-on reset a default volume is preset for both the
loudspeaker and the ringer volume.

1997 Jan 13 13

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

Table 12 Ringer melody selection (PCD3331-2/S)

RMS DIODE

Not connected ringer melody selection by

Connected default ringer melody

Table 13 Ringer input frequency selection (PCD3332-3)

RFS DIODE

Not connected 19.5 to 54
Connected 14.5 to 68

Table 14 Memory Location Access diode configuration

MLA DIODE KEY FUNCTION

Not connected M4/MRC key is MRC
Connected M4/MRC key is M4

RINGER FREQUENCY

SELECTION (Hz)

keys 1, 2 and 3

RINGER FREQUENCY

SELECTION (Hz)

PCD3332-2; PCD3332-3;

PCD3332-S

5.2.2.3 Ringer Melody Selection (RMS: PCD3332-2/S)

The ringer melody for these devices can be changed by
depressing keys 1, 2 and 3. To give default melody only,
apply a diode at RMS location.

5.2.2.4 Ringer Input Frequency Range Selection
(RFS: PCD3332-3)

For the PCD3332-3, this diode is used to select between
two input frequency ranges, 19.5 to 54 Hz or

14.5 to 68 Hz.

5.2.2.5 Memory Location Access (MLA)

To be able to build various telephone models by using the
PCD3332, a possibility has been created to define
different keypad layouts. e.g. a 13 number repertory dial
consist of 10 numbers recalled via MRC + 0 to 9, and
3 direct access numbers M1, M2 and M3. A 10 number
direct accessible dialler can be created by applying the
keys M1 to M10 while a diode is connected at the MLA
location.

Table 15 Ringer Delay Selection diode configuration

(PCD3332-2)

RDS DIODE OUTPUT SELECTION

Not connected no delay
Connected ringer validation delay, 100 ms

Table 16 DTMF output option diode configuration

(PCD3332-3/S)

DOO DIODE OUTPUT SELECTION

Not connected no transmission of ∗/#
Connected transmission of ∗/#

5.2.2.1 Ringer Delay Selection (RDS: PCD3332-2)

If the diode is connected, then the actual ringer frequency
validation is started after a delay of 100 ms. This is only
performed at the start of each ringer burst signal.

5.2.2.2 DOO DTMF output selection (PCD3332-3/S)

If the diode is connected, then the ∗ and # DTMF signals
will be dialled out during pulse-to-tone switching. If the
diode is not connected∗ and # will not be dialled out during
pulse-to-tone switching.

5.2.2.6 Mark-to-Space ratio (M/S)

Changes the make-break ratio from 60 : 40 ms (3 : 2) to
66 : 33 ms (2 : 1).

5.2.2.7 Access Pause Time (APT)

To adapt the access pause timing to local requirements,
2 different times for DTMF and the corresponding times for
pulse dialling are built-in.

5.2.2.8 Tone Burst Time (TBT)

During automatic transmission of a number in the DTMF
mode the tone-on time and the pause time between two
digits can be selected by option TBT A and TBT B. During
manual dialling this option selects the minimum tone-on
and pause time while the maximum time is determined by
the time a key is depressed.

5.2.2.9 Pulse/Tone mode Selection (PTS)

The telephone set can be initially set to the PULSE or
DTMF mode by switching on and off the diode in the
matrix.

The first entry of keys ∗ and # in the pulse dial mode will
change the dial mode as well.

1997 Jan 13 14

5.2.2.10 Flash or Earth register recall (F/E)

Dependent on this option, the output DP/FL or output
EARTH will be activated after a flash key operation.

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

5.2.2.11 Flash Time Select

These two diodes set the calibrated flash pulse duration:
100, 115, 270 or 600 ms for the DP/FL output, when this
output is selected. When the EARTH output is selected the
earth pulse is 400 ms.

5.2.2.12 Low Frequency amplifier Enable (LFE:
PCD3332-3)

Output LFE can be used to enable the TEA108x or
TEA109x listening-in or hands-free IC. The HOOK key
functions as a toggle to control the hands-free mode
(LFE = LOW) or listening-in mode (LFE = HIGH). while in

handbook, full pagewidth

HANDSET MODE


LFE = LOW
HF/RTE = LOW
DPFLN = HIGH


Hook key

LISTENING-IN MODE


LFE = HIGH
HF/RTE = LOW
DPFLN = HIGH


Hook key

PCD3332-2; PCD3332-3;

PCD3332-S

the off-hook condition the key can be pressed and kept
down to replace the handset while saving the LFE and
DP/FL selection.

5.2.3 H
Figure 9 illustrates the different HOOK modes and how

those modes are entered (PCD3332-3). For the
PCD3332-2/S only the ‘handset’ mode and ‘on-hook’
mode are valid.

cradle

cradle

cradle

OOK MODES

ON-HOOK MODE


LFE = LOW
HF/RTE = LOW
DPFLN = LOW


Hook key

HANDS-FREE MODE


LFE = HIGH
HF/RTE = HIGH
DPFLN = HIGH


Hook key

Put cradle on-hook while Hook key is still
depressed then release the Hook key

For PCD3332-2 and PCD3332-S, only the ‘handset mode’ and ‘on-hook mode’ are valid.

Fig.9 Schematic diagram of the HOOK modes.

1997 Jan 13 15

MBE753

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

6 OPERATING PROCEDURES

6.1 Operating modes

The PCD3332-2/S has 4 operating modes:

1. On-hook mode or ringer mode

2. Off-hook mode or conversation mode

3. Programming mode or store mode

4. Dial mode.

The PCD3332-3 has 4 operating modes:

1. On-hook mode or ringer mode

2. Conversation mode which is divided into hands-free

mode and listening-in mode

3. Programming mode or store mode

4. Dial mode.

6.1.1 O

When the chip enable input CE/FDI is LOW the PCD3332
is disabled. In the standby mode, the only current drawn is
for memory retention of the redial digits. During the

N-HOOK MODE OR RINGER MODE

PCD3332-2; PCD3332-3;

PCD3332-S

standby mode all keyboard pins are HIGH, except ROW 5
which is set to LOW.

6.1.2 D
Lifting the cradle (handset) or pressing the hook key will

put the set in the conversation mode, an accepted key
entry is processed and may initiate the following:

• Dialling the digits entered

• Redialling the previously entered digits

• Dialling out a repertory memory

• Enter programming mode.

6.1.3 R
All modes, except for the ringer mode, are terminated by a

line break (CE is deactivated), or by going on-hook. If this
condition is detected, the reset delay time is initiated.
The set will not enter the on-hook state unless the reset
delay has expired. In the event of a line break, the set will
remain in the actual operation mode if the line-break is
ended while the reset delay is still in progress (see Fig.10).

IAL MODE

ESET DELAY TIME

handbook, full pagewidth

DIGITS

(keep the key depressed)

TONE

CE/FDI

MUTE

Fig.10 Reset delay timing relationship.

1997 Jan 13 16

280 ms (trd) reset delay

MBE760

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

6.1.3.1 Pulse dialling (PTS = ON)

DIGITS (3) (RECALL) (4)

handbook, full pagewidth

DMO

t

flash

t

holdover

t

idp

DP/FL

MUTE

t

m

t

b

tm + t

idp

PCD3332-2; PCD3332-3;

PCD3332-S

tm+ t

+ t

idp

holdover

MBE762

t

= 80 ms; t

holdover

tb= break time; tm= make time; t

DIGITS

handbook, full pagewidth

DMO

DP/LF

EARTH

MUTE

= 840 ms.

idp

t

b

= interdigit pause time.

idp

Fig.11 DP/FL, DMO and MUTE timing relationship.

(3) (RECALL) (4)

t

m

tm + t

idp

t

t

holdover

earth

t

idp

tm + t

idp

+ t

holdover

MBE763

t

= 80 ms; t

holdover

tb= break time; tm= make time; t

= 840 ms.

idp

= interdigit pause time.

idp

Fig.12 DP/FL, DMO, MUTE and EARTH timing relationship.

1997 Jan 13 17

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

6.1.3.2 DTMF dialling (PTS = OFF)

handbook, full pagewidth

DIGITS

TONE

DP/FL

MUTE

t

(3) (3) (4)(RECALL)

t

tone

pause

t

flash

t

holdover

PCD3332-2; PCD3332-3;

PCD3332-S

t

idp

t

pause

+ t

holdover

MBE758

t

= 80 ms; t

holdover

t

= interdigit pause time.

idp

handbook, full pagewidth

DIGITS

TONE

EARTH

MUTE

= 840 ms.

idp

t

tone

Fig.13 DP/FL, MUTE and TONE timing relationship.

(3) (3) (4)(RECALL)

t

pause

t

earth

t

holdover

t

idp

t

pause

+ t

holdover

MBE759

t

= 80 ms; t

holdover

t

= interdigit pause time.

idp

idp (flash − idp)

= 840 ms.

Fig.14 TONE, MUTE and EARTH timing relationship.

1997 Jan 13 18

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

6.1.3.3 Manual dialling

During digit entry, the device immediately starts to transmit
the digit(s). The minimum transmission time is unaffected
by the speed of entry. Transmission continues as long as
further data input has to be processed. Up to 32 digits can
be stored in the redial register.

After the main register overflows, a 10 digits First-In
First-Out register (FIFO) takes over as buffer. After
transmitting the first digit of the FIFO register this position
is automatically cleared to provide space for storing new
data. In this way, the total number of digits which can be
transmitted is unlimited, provided the key-in rate is not
excessive.

Table 17 LNR capacity

INPUT OUTPUT

⇑, [1], [2], [3], [4], [5], [6], [7], [8], [9], [0], [1], [2], [3],
[4], [5], [6], [7], [8], [9], [0], [1], [2], [3], [4], [5], [6],
[7], [8], [9], [0], [1], [2], ⇓

⇑. [LNR], ⇓ DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3,

⇑, [LNR], [0], ⇓ DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3,

⇑, [LNR], ⇓ nothing dialled

DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3,
4, 5, 6, 7, 8, 9, 0, 1, 2

4, 5, 6, 7, 8, 9, 0, 1, 2

4, 5, 6, 7, 8, 9, 0, 1, 2, 0

If the key-in rate causes both the redial register and FIFO
register to overflow, the PCD3332-2 will return to the
conversation mode and no keyboard entries will be
accepted.

6.1.3.4 Last number redial

If the first key entered is the LNR key, the stored LNR
number is dialled out. LNR can hold a maximum of
32 digits. LNR is inhibited If more than 32 digits are
entered, normal dialling however is continued.

LNR functional examples:

⇓ = Go on-hook
⇑ = Go off-hook

PCD3332-2; PCD3332-3;

PCD3332-S

Table 18 LNR after programming

INPUT OUTPUT

⇑, [1], [2], [3], [4], [5], ⇓ DTMF: 1, 2, 3, 4, 5
⇑, [LNR], ⇓ DTMF: 1, 2, 3, 4, 5
⇓, ⇑, [STORE] [5], [4], [3], [2], [1], [STORE], [M1], ⇓ beep for each entry (confirmation beep)
⇑, [LNR], ⇓ nothing dialled

Table 19 LNR sliding cursor

INPUT (M1 = 1, 2, 3, 4 or 5) OUTPUT

⇑, [1], [2], [3], [4], [5], [6], [7], [8], [9], [0], ⇓ DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
⇑, [1], [2], [3], [LNR], ⇓ DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
⇑, [STORE] [5], [4], [3], [2], [1], [STORE], [M1] ⇓ DTMF: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
⇑, [M1], Wait for end of dial, [M1], ⇓ DTMF: 1, 2, 3, 4, 5, 1, 2, 3, 4, 5
⇑[1], [2], [3], [LNR], ⇓ DTMF: 1, 2, 3, 4, 5, 1, 2, 3, 4, 5
⇑[2], [3], [LNR], ⇓ DTMF: 2, 3
⇑[2], [3], [LNR], ⇓ DTMF: 2, 3

1997 Jan 13 19

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

Table 20 LNR if ∗, #, Tone, and recall is entered in DTMF mode

INPUT OUTPUT

⇑ [1], [2], [∗], [3], [4], [Recall], [6], [7], ⇓ DTMF: 1, 2, ∗, 3, 4, Flash, 6, 7
⇑, [LNR], ⇓ DTMF: Flash, 6, 7
⇑ [Recall], Wait 0.5 sec, [Recall], Wait 0.5

sec, [Recall], [1], [2], [3], ⇓
⇑ [LNR], ⇓ Flash, 1, 2, 3
⇑ [1], [2], [3], [Recall], [3], [2], [1], ⇓ 1, 2, 3, Flash, 3, 2, 1
⇑ [LNR], ⇓ Flash, 3, 2, 1
⇑ [1], [2], [3], [Recall], [∗], [3], [2], [1], ⇓ 1, 2, 3, Flash, ∗, 3, 2, 1
⇑ [LNR], ⇓∗, 3, 2, 1
⇑ [∗], [1], [2], [3], [Recall], [3], [2], [1], ⇓∗, 1, 2, 3, Flash, 3, 2, 1
⇑ [LNR], ⇓ Flash, 3, 2, 1
⇑ [∗], [1], [2], [3], [Recall], [∗], [3], [2], [1], ⇓∗, 1, 2, 3, Flash, 3, 2, 1
⇑ [LNR], ⇓ Flash, 3, 2, 1

Table 21 LNR if ∗, #, Tone, and recall is entered in PULSE mode

Flash, Flash, Flash, 1, 2, 3

PCD3332-2; PCD3332-3;

PCD3332-S

INPUT OUTPUT

⇑ [1], [2], [∗], [3], [4], [Recall], [6], [7], ⇓ PULSE: 1, 2, DTMF: 3, 4, Earth, PULSE: 6, 7
⇑ [LNR], ⇓ PULSE: 1, 2
⇑ [Recall], Wait 0.5 sec, [Recall], Wait 0.5

sec, [Recall], [1], [2], [3], ⇓
⇑ [LNR], ⇓ PULSE: Earth, 1, 2, 3
⇑ [1], [2], [3], [Recall], [3], [2], [1], ⇓ PULSE: 1, 2, 3, Earth, 3, 2, 1
⇑ [LNR], ⇓ PULSE: Earth, 3, 2, 1
⇑ [1], [2], [3], [Recall], [∗], [3], [2], [1], ⇓ PULSE: 1, 2, 3, Earth, DTMF: 3, 2, 1
⇑ [LNR], ⇓ PULSE: 1, 2, 3
⇑ [∗], [1], [2], [3], [Recall], [3], [2], [1], ⇓ DTMF: 1, 2, 3, Earth, PULSE: 3, 2, 1
⇑ [LNR], ⇓ PULSE: Earth, 3, 2, 1
⇑ [∗], [1], [2], [3], [Recall], [∗], [3], [2], [1], ⇓ DTMF: 1, 2, 3, Earth, 3, 2, 1
⇑ [LNR], ⇓ DTMF: 1, 2, 3

PULSE: Earth, Earth, Earth, 1, 2, 3

1997 Jan 13 20

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

6.1.3.5 Access pause dialling and termination

Access pauses entered during manual dialling or repertory
number storage are not dialled out, but are stored. When
LNR or a repertory number is selected for redial, the
access pauses are dialled out. If at LNR or repertory dial,
an access pause is being dialled out, then depressing the
PAUSE key will terminate the access pause in progress
and dialling will continue at the first non-access pause
digit.

6.1.3.6 Flash/Earth recall

Depending on the option selected (see Table 8),
depressing the Flash key will generate a calibrated
Flash time at output DP/FL, or a calibrated earth time on
the EARTH output. The calibrated earth time is 400 ms,
the flash time is set by diodes as shown in Table 7.

The Flash/Earth will also refer the set to dial mode
selected by the diode option.

6.1.3.7 Data dialling in the pulse dialling mode

PCD3332-2; PCD3332-3;

PCD3332-S

6.1.4.2 Notepad function

In the speech mode, a number can be entered on the
keyboard. This number may be dialled out at the next
off-hook situation by LNR or may be entered in memory.
This function effectively mimics a notepad for a number
passed during a telephone conversation.

6.1.4.3 Repertory and chain dialling

Repertory numbers can be dialled out before or after
manual dialling or LNR, and can be entered one after
another in a chain. However, during transmission of LNR
or a repertory number, a subsequent repertory number is
not accepted. This means that a repertory number can
only be entered if the previous repertory dial or LNR is
ended.

Depending on the MLA diode configuration (see Table 14)
the procedure is as follows:

• Direct repertory access: M1 to M10

• Two-key repertory access: MRC_0 to MRC_9.

If the PCD3332 is initially set to the pulse dial mode
(PTS = ON), depressing the TONE,∗ or # key will continue
dialling in the DTMF mode. Flash/Earth recall will restore
the pulse dialling mode.

6.1.4 P

The PCD3332 has an on-chip CMOS RAM which can
store up to 10 numbers of 32 digits with a total of 250 digits
(floating memory). If the memory overflows, a warning
beep is generated. If the controller is initially set to the
pulse dial mode, digits can be stored in the pulse dial
and/or in the DTMF mode by depressing key ∗ or # or
using the ‘change mode’ procedure during the store
procedure. This function is best illustrated in Table 22.

ROGRAMMING MODE

6.1.4.1 Memory overflow

A total of 250 digits can be stored. If an attempt is made to
store a number which will bring the total amount of digits
stored to over 250, the TONE output will generate the
memory overflow beeps and the store procedure is
cancelled.

6.1.5 R
The PCD3332-2/S has a built-in frequency discriminator

circuit, with CE/FDI being used as the discriminator input.
If the ringer frequency supplied is accepted, a ringer
melody is generated. When the ringer melody sounds, the
ringer volume is adjustable in 4 steps using the ∗/VOL−
and #/VOL+ keys.

Depending on the diode RMS, either a default ringer
melody is selected, or 1 out of 3 ringer melodies may be
selected from the keypad (see Table 12).

6.1.6 R
The PCD3332-3 has a built-in frequency discriminator

circuit, with CE/FDI being used as the discriminator input.
If the ringer frequency supplied is accepted, a ringer
melody is generated. When the ringer melody sounds, the
ringer volume is adjustable in 4 steps using the ∗/VOL−
and #/VOL+ keys.

Depending on the diode RFS, 1 of 2 different input ringer
frequency ranges is selected (see Table 13).

INGER MODE (PCD3332-2/S)

INGER MODE (PCD3332-3)

1997 Jan 13 21

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

1

/

1.5

/

f

ring

f

ring

ook, full pagewidth

CE/FDI

TONE



trd

PCD3332-2; PCD3332-3;

PCD3332-S

V

DD

V

SS

MBE761

Fig.15 Ringer response timing and detection.

1997 Jan 13 22

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

Table 22 Key sequences in programming mode

KEY SEQUENCE

Programming a repertory location

[STORE] data [STORE] [M1]
[STORE] data [M1]

(1)

[STORE] data [STORE] [0]
[STORE] data [STORE] [MRC] [0]

[STORE] [M1]

(3)

[STORE] data [MRC] [0]

Copy LNR to a repertory location

[STORE] [LNR] [STORE] [M1]
[STORE] [LNR] [M1]

(1)

[STORE] [LNR] [STORE] [0]
[STORE] [LNR] [STORE] [MRC] [0]

[STORE] [M1]

(3)

[STORE] [LNR] [MRC] [0]

(1)

(2)

(2)

, and [STORE] data

(2)

, and [STORE] data [M1]

(1)

(2)

(2)

, and [STORE] [LNR]

(2)

, and [STORE] [LNR] [M1]

PCD3332-2; PCD3332-3;

PCD3332-S

(3)

(3)

Clearing a repertory location

[STORE] [M1]
[STORE] [STORE] [0]

(1)

(2)

[STORE] [STORE] [MRC] [0]
[STORE] [MRC] [0]
[STORE] data [MRC] [0]

(2)

, and [STORE] [M1]

(2)

, and [STORE] data [M1]

Notepad programming

[STORE] data [STORE] [LNR]
[STORE] data [LNR]

Clear Notepad

[STORE] [STORE] [LNR]
[STORE] [LNR]

Notes

1. Select [M1] to [M10].

2. Select [0] to [9].

3. Select [M1] to [M3].

(2)

, and [STORE] [STORE] [M1]

(3)

(3)

(3)

1997 Jan 13 23

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

PCD3332-2; PCD3332-3;

PCD3332-S

7 LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER MIN. MAX. UNIT

V

DD

V

I

I

I

I

O

P

tot

P

O

I

SS

T

stg

T

j

supply voltage −0.5 +7.0 V
all input voltages −0.5 VDD+ 0.5 V
DC input current −10 +10 mA
DC output current −10 +10 mA
total power dissipation − 125 mW
power dissipation per output − 30 mW
ground supply current −50 +50 mA
storage temperature −65 +150 °C
operating junction temperature − 90 °C

8 DC CHARACTERISTICS

V

= 1.8 to 6 V; VSS=0V; T

DD

= −25 to +70 °C; all voltages with respect to VSS; f

amb

= 3.58 MHz; unless otherwise

xtal

specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

DD

supply voltage

operating 2.5 − 6V
standby CE = 0 1.0 − 6V

I

DD(dial)

I

DD(conv)

I

DD(stb)

supply current (dialling mode) note 1, CE = 1

= 3 V; TONE active − 0.9 1.8 mA

V

DD

= 3 V; TONE not active − 0.3 0.6 mA

V

DD

supply current (conversation mode) note 1; CE = 1; VDD=3V − 0.2 0.4 mA
supply current (standby mode) note 2; CE = 0

V

DD

V

DD

= 1.8 V; T
= 1.8 V; T

=25°C; − 1.0 2.5 µA

amb

=70°C; −−10 µA

amb

Inputs

V

IL

V

IH

I

LI

LOW level input voltage 0 − 0.3VDDV
HIGH level input voltage 0.7VDD− V
input leakage current VSS≤ VI≤ V

DD

−1 − +1 µA

DD

Vtz

Port outputs

I

OL

I

OH

I

OH1

LOW level output sink current VDD= 3 V; VO= 0.4 V 0.7 3.5 − mA
HIGH level pull-up output

source current
HIGH level push-pull output

VO= 2.7 V; VDD=3V −10 −20 −µA

=0V; VDD=3V −−100 −300 µA

V

O

VDD= 3 V; VO= 2.6 V −0.7 −4 − mA

source current

1997 Jan 13 24

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

PCD3332-2; PCD3332-3;

PCD3332-S

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

TONE output (notes 3 and 4)

V

HG(RMS)

High Group Frequency voltage.

158 181 205 mV
Voltage of higher frequency
component for DTMF (RMS value)

V

LG(RMS)

Low Group Frequency voltage.

125 142 160 mV
Voltage of lower frequency
component for DTMF (RMS value)

f∆ f⁄

V

DC

 output impedance − 100 500 Ω

Z

o

G

v

THD total harmonic distortion T

frequency deviation −0.6 − 0.6 %
DC voltage level − 0.5VDD− V

pre-emphasis of group 1.5 2.0 2.5 dB

=25°C; note 5 − 25 − dB

amb

Power-on-reset

V

POR

Power-on-reset level 1.5 2.0 2.5 V

Oscillator

g

m

R

F

transconductance VDD= 5 V 0.2 0.4 1.0 mS
feedback resistor 0.3 1.0 3.0 MΩ

Notes

1. VIL=VSS; VIH=VDD; open-drain outputs connected to VSS; all other outputs open; TONE not active, unless
otherwise specified.

2. Crystal connected between XTAL1 and XTAL2; pins T1 and CE/T0 at VSS; TONE not active.

3. TONE output requires VDD≥ 2.5 V.

4. Values are specified for DTMF frequencies only (CEPT).

5. Related to the Low Group Frequency component (CEPT).

9 AC CHARACTERISTICS

VDD= 1.8 to 6 V; VSS=0V; T

= −25 to +70 °C; all voltages with respect to VSS; unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

t

r

t

f

rise time all outputs VDD=5V; T
fall time all outputs − 30 − ns

=25°C; CL=50pF − 30 − ns

amb

1997 Jan 13 25

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

10 PACKAGE OUTLINES

handbook, full pagewidth

DIP28: plastic dual in-line package; 28 leads (600 mil)

D

seating plane

L

Z

28

e

b

PCD3332-2; PCD3332-3;

PCD3332-S

SOT117-1

M

E

A

2

A

A

1

w M

b

1

15

c

(e )

1

M

H

pin 1 index

1

0 5 10 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

A

A

UNIT

inches

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

max.

mm

1 2

min.

max.

b

1.7

1.3

0.066

0.051

b

0.53

0.38

0.020

0.014

cD E weM

1

0.32

0.23

0.013

0.009

(1) (1)

36.0

35.0

1.41

1.34

14.1

13.7

0.56

0.54

E

14

(1)

L

3.9

3.4

M

15.80

15.24

0.62

0.60

H

E

17.15

15.90

0.68

0.63

0.252.54 15.24

0.010.10 0.60

e

1

0.15

0.13

Z

max.

1.75.1 0.51 4.0

0.0670.20 0.020 0.16

OUTLINE
VERSION

SOT117-1

IEC JEDEC EIAJ

051G05 MO-015AH

REFERENCES

1997 Jan 13 26

EUROPEAN

PROJECTION

ISSUE DATE

92-11-17
95-01-14

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

SO28: plastic small outline package; 28 leads; body width 7.5 mm

D

c

y

Z

28

15

PCD3332-2; PCD3332-3;

PCD3332-S

SOT136-1

E

H

E

A

X

v M

A

pin 1 index

1

e

0 5 10 mm

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

UNIT

mm

inches

Note

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

A

max.

2.65

0.10

A

0.30

0.10

0.012

0.004

1

A2A

2.45

2.25

0.096

0.089

0.25

0.01

b

3

p

0.49

0.32

0.36

0.23

0.019

0.013

0.014

0.009

(1)E(1) (1)

cD

18.1

7.6

17.7

7.4

0.71

0.30

0.69

0.29

14

w M

b

p

scale

eHELLpQ

1.27

0.050

10.65

10.00

0.42

0.39

1.4

0.055

A

2

0.043

0.016

A

1.1

0.4

Q

1

detail X

1.1

0.25

1.0

0.043

0.01

0.039

(A )

L

p

L

0.25 0.1

0.01

A

3

θ

ywv θ

Z

0.9

0.4

0.035

0.004

0.016

o

8

o

0

OUTLINE
VERSION

SOT136-1

IEC JEDEC EIAJ

075E06 MS-013AE

REFERENCES

1997 Jan 13 27

EUROPEAN

PROJECTION

ISSUE DATE

91-08-13

95-01-24

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

11 SOLDERING

11.1 Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

11.2 DIP

11.2.1 S

The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

11.2.2 R

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.

11.3 SO

11.3.1 REFLOW SOLDERING

OLDERING BY DIPPING OR BY WA VE

EPAIRING SOLDERED JOINTS

(order code 9398 652 90011).

). If the

stg max

PCD3332-2; PCD3332-3;

PCD3332-S

method. Typical reflow temperatures range from
215 to 250 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.

11.3.2 W
Wave soldering techniques can be used for all SO

packages if the following conditions are observed:

• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

• The longitudinal axis of the package footprint must be
parallel to the solder flow.

• The package footprint must incorporate solder thieves at
the downstream end.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

11.3.3 R

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

AVE SOLDERING

EPAIRING SOLDERED JOINTS

Reflow soldering techniques are suitable for all SO
packages.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating

1997 Jan 13 28

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

12 DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

13 LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

PCD3332-2; PCD3332-3;

PCD3332-S

1997 Jan 13 29

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

PCD3332-2; PCD3332-3;

PCD3332-S

NOTES

1997 Jan 13 30

Philips Semiconductors Product specification

Multistandard pulse/tone repertory
diallers/ringers

PCD3332-2; PCD3332-3;

PCD3332-S

NOTES

1997 Jan 13 31

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Middle East: see Italy

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Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

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For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

© Philips Electronics N.V. 1997 SCA53
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
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Internet: http://www.semiconductors.philips.com

Printed in The Netherlands 417027/1200/03/pp32 Date of release: 1997Jan13 Document order number: 9397 750 01079