Datasheet W91331N, W91331AN, W91330N, W91330LN, W91330AN Datasheet (Winbond Electronics)
...Page 1
W91330N SERIES
DP
TONE/PULSE DIALER WITH HANDFREE
LOCK AND KEY TONE FUNCTIONS
GENERAL DESCRIPTION
The W91330N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse
dialing. They feature one-key redial, handfree dialing, key tone, redial, and lock functions.
FEATURES
•
DTMF/pulse switchable dialer
•
32-digit redial memory
•
Pulse-to-tone (*/T) keypad for long distance call operation
•
Uses 5 × 4 keyboard
•
Easy operation with redial, flash, pause, and */T keypads
•
Pause, pulse-to-tone (*/T) can be stored as a digit in memory
• 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
• Off-hook delay 300 mS in lock mode (
• First key-in delay 300 mS output in lock mode
•
Dialing rate (10, 20 ppS ) selected by bonding option
•
Minimum tone output duration: 93 msec.
•
Minimum intertone pause: 93 msec.
•
Flash break time (73, 100, 300, 600 msec.) selectable by keypad; pause time is 1.0 sec.
•
On-chip power-on reset
•
Uses 3.579545 MHz crystal or ceramic resonator
•
Packaged in 18 or 20-pin plastic DIP
• The different dialers in the W91330N series are shown in the following table:
TYPE NO. REPLACEMENT
TYPE NO.
W91330N W91330 10 600/100/300/73 Pin Yes - - 18
W91331N W91331 20 600/100/300/73 Pin Yes - - 18
W91330AN W91330A 10 600/100/300/73 Pin Yes Yes - 20
W91331AN W91331A 20 600/100/300/73 Pin Yes Yes - 20
W91330LN W91330L 10 600/100/300/73 Pin - - Yes 20
W91330ALN W91330AL 10 600/100/300/73 Pin - Yes Yes 20
PULSE
(ppS)
will keep low for 300 mS low while off hook)
FLASH
(mS)
M/B KEY
TONE
HANDFREE
DIALING
LOCK PACKAGE
(PINS)
Publication Release Date: May 1997
- 1 - Revision A2
Page 2
PIN CONFIGURATIONS
XT
4
8
10
13
XT
4
8
R3
12
11
13
XT
10
R3
KT
XT
4
8
R3
12
11
13
1
C1
2
C2
C3
3
C4
KT
5
V
T/P MUTE
XT
SS
6
7
9
18
17
16
15
14
10
R4
R2
R1
V
DD
MODE
DTMF
DP
HKS
V
SS
XT
T/P MUTE
HFI
C1
C2
C3
C4
W91330N SERIES
1
2
3
5
6
7
9
R4
20
R3
19
R2
18
R1
17
V
16
DD
MODE
15
DTMF
14
DP
12
HKS
11 HFO
LOCK
V
SS
XT
T/P MUTE
W91330N/W91331N
1
C1
2
C2
3
C3
C4
5
6
7
9
W91330LN
18
17
16
15
14
10
R4
R2
R1
V
DD
MODE
DTMF
DP
HKS
LOCK
V
XT
T/P MUTE
HFI
W91330AN/W91331AN
1
C1
C2
C3
C4
SS
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11 HFO
W91330ALN
R4
R2
R1
V
DD
MODE
DTMF
DP
HKS
- 2 -
Page 3
W91330N SERIES
XT
MUTE
MUTE
HKS
HKS
HKS
HKS
DP
PIN DESCRIPTION
SYMBOL 18-PIN 20-PIN I/O FUNCTION
Column-
Row
Inputs
XT,
T/P
MODE 13 15 I Pulling mode pin to VSS places the dialer in tone
1−4
&
15−18
7, 8 7, 8 I, O A built-in inverter provides oscillation with an
9 9 O
1−4
&
17−20
The keyboard inputs may be used with either the
standard 5 × 4 keyboard or the inexpensive single
I
contact (Form A) keyboard. Electronic input from a
µC can also be used.
A valid key-in is defined as a single row being
connected to a single column.
inexpensive 3.579545 MHz crystal or ceramic
resonator.
The T/P
open drain output.
The output transistor is switched on during dialing
sequence, one-key redial break, and flash break
time. Otherwise, it is switched off.
mode.
Pulling mode pin to VDD places the dialer in pulse
mode. (10 ppS; 20 ppS for W91331N/W91331AN,
M/B = 40:60)
Floating mode pin places the dialer in pulse mode.
(10 ppS; 20 ppS for W91331N/W91331AN, M/B =
33.3:66.7).
is a conventional CMOS N-channel
10 12 I Hook switch input.
= VDD: On-hook state. Chip in sleeping mode,
no operation.
= VSS: Off-hook state. Chip enabled for normal
operation.
pin is pulled to VDD by internal resistor.
11 13 O N-channel open drain dialing pulse output.
Flash key will cause DP to be active in either tone
mode or pulse mode.
The timing diagram for pulse mode is shown in
Figure 1(a, b, c, d).
VDD, VSS 14, 6 16, 6 I Power input pins.
- 3 - Revision A2
Publication Release Date: May 1997
Page 4
W91330N SERIES
R1
R4
C1
HFI
HFI
HFO
HFI
Pin Description, continued
SYMBOL 18-PIN 20-PIN I/O FUNCTION
DTMF 12 14 O In pulse mode, this pin remains in low state at all
times. In tone mode, it will output a dual or single
tone. Detailed timing diagram for tone mode is
shown in Figure 2(a, b, c, d).
Output Frequency
Specified Actual
697
R2
R3
C2
C3
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
Error %
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
, HFO
KT 5
(except
W91330LN)
- 10, 11 I, O Handfree control pins. The handfree control state is
toggled on by a low pulse on the
input pin. The
status of the handfree control state is described in
the following table:
CURRENT STATE
Hook SW.
On Hook
Off Hook
On Hook Off Hook
Off Hook
Off Hook
HFO
Low
High
High
Low
High
NEXT STATE
Input
HFI
HFI
HFI
On Hook
On Hook High Yes
Dialing
High
Low No
Low Yes
Low Yes
Low
Yes
No
pin is pulled to VDD by internal resistor.
Detailed timing diagrams are shown in Figure 3.
5
(except
W91330ALN)
O Key-tone signal output. The key tone is generated
for all valid keys. Frequency is 600 Hz and duration
is 35 mS.
- 4 -
Page 5
W91330N SERIES
LOCK
Pin Description, continued
SYMBOL 18-PIN 20-PIN I/O FUNCTION
5
(W91330LN
only)
BLOCK DIAGRAM
5
(W91330ALN
only)
I
The function of this terminal is to prevent "0" dialing
and "9" dialing under PABX system long distance
call control. When the first key input after reset is 0
or 9, all key inputs, including the 0 or 9 key, become
invalid and the chip generates no output. The
telephone is reinitialized by a reset.
LOCK PIN
Floating Normal dialing mode
V
DD
V
SS
FUNCTION
"0," "9" dialing inhibited
"0" dialing inhibited
XT XT
SYSTEM CLOCK
GENERATOR
HKS
HFI
ROW
(R1 to R4, Vx)
COLUMN
(C1 to C4)
DTMF
KEYBOARD
INTERFACE
D/A
CONVERTER
LOCATION
LATCH
ROW & COLUMN
PROGRAMMABLE
COUNTER
LOCK
MODE
KT
T/P MUTE
DP
HFO
READ/WRITE
COUNTER
RAM
DATA LATCH
& DECODER
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
Publication Release Date: May 1997
- 5 - Revision A2
Page 6
FUNCTIONAL DESCRIPTION
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
Keyboard Operation
W91330N SERIES
C1 C2 C3 C4
1 2 3 R1
4 5 6 F1 R2
7 8 9 F2 R3
∗/T
0 # R/P1 R4
R/P2 R F3 F4 VX
• R: One-key redial function
• R/P1, R/P2: Redial and pause function key, P1 is 3.6 sec. and P2 is 2.0 sec.
• ∗/T: ∗ in tone mode and P→T in pulse mode
• F1, ..., F4: Flash keys, F1 = 600 mS, F2 = 100 mS, F3 = 300 mS, F4 = 73 mS
Notes: D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #
R/P: R/P1 or R/P2.
Fn: F1, ..., F4
Normal Dialing
OFF HOOK (or ON HOOK &
1. D1, D2, ..., Dn will be dialed out.
2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits in normal dialing.
), D1 , D2 , ..., Dn
Redialing
OFF HOOK (or ON HOOK &
Come ON HOOK , OFF HOOK (or ON HOOK &
• The redial memory content will be dialed out.
), D1 , D2 , ..., Dn Busy,
), R/P
• The R/P key can execute the redial function only as the first key-in after off-hook; otherwise, it
executes pause function.
• If redialing length oversteps 32 digits, the redialing function will be inhibited.
OFF HOOK (or ON HOOK &
• The one-key redialing function timing diagram is shown in Figure 4.
• If the dialing of D1 to Dn is finished, pressing the R key will cause the pulse output pin to
), D1 , D2 , ..., Dn Busy, R
go low for 2.2 seconds break time and 0.6 seconds pause time will automatically be added.
- 6 -
Page 7
W91330N SERIES
HFI
¡õ
HFI
¡õ
HFI
¡õ
• If the pulses of the dialed digits D1 to Dn have not finished, R will be ignored.
• The redial function
by
• The R key uses the same redial buffer as the redial function
by
and it is actived during normal dialing or repertory dialing.
R key has no break time (2.2 sec.) if it is the first key in after off-
hook.
R/P1 or R/P2 key,
Access Pause
OFF HOOK (or ON HOOK &
1. The pause function can be stored in memory.
2. The pause function is executed in normal dialing, redial dialing, or memory dialing.
3. The pause duration of 2.0 or 3.6 seconds per pause is selected by keypad.
4. The detailed timing diagram for the pause function is shown in Figure 5.
5. Only one pause function can be released to user.
), D1 , D2 , R/P , D3 , ..., Dn
Pulse-to-tone (*/T)
OFF HOOK (or ON HOOK &
D2' , ..., Dn'
1. If the mode switch is set to pulse mode, then the output signal will be:
), D1 , D2 , ..., Dn , */T , D1' ,
D1, D2, …, Dn, Pause (2.0 sec. or 3.6 sec.), D1', D2', …, Dn'
(Pulse) (Tone )
If pause1 is excuted, the pause time of pulse-to-tone function is 3.6S. If pause2 is excuted, the
pause time of the pulse-to-tone function is 2.0S.
2. If the mode switch is set to tone mode, then the output signal will be as follows:
D1, D2, ..., Dn, *, D1', D2', ..., Dn'
(Tone) (Tone)
3. The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse
mode only by going on-hook.
4. The pulse-to-tone function timing diagram is shown in Figure 6.
Flash
OFF HOOK (or ON HOOK &
1. Fn = F1, …, F4
2. The dialer will execute flash break time of 600 mS (F1), 100 mS (F2), 300 mS (F3), or 73 mS (F4)
before the next digit is dialed out. In each case, the pause time is 1.0 sec.
), Fn
Publication Release Date: May 1997
- 7 - Revision A2
Page 8
W91330N SERIES
HKS
HKS
3. Flash key cannot be stored as a digit in memory. The flash key has the first priority among
the keyboard functions.
4. The system will return to the initial state after the flash pause time is finished.
5. The flash function timing diagram is shown in Figure 7.
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATING UNIT
DC Supply Voltage VDD−VSS -0.3 to +7.0 V
Input/Output Voltage VIL
VIH VDD +0.3 V
VOL
VOH VDD + 0.3 V
Power Dissipation PD 120 mW
Operation Temperature TOPR -20 to +70
Storage Temperature TSTG -55 to +150
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
VSS −0.3
VSS −0.3
V
V
°C
°C
DC CHARACTERISTICS
(VDD-VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded)
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Operating Voltage VDD - 2.0 - 5.5 V
Operating Current IOP Tone, Unloaded - 0.4 0.6 mA
Pulse, Unloaded - 0.2 0.4
Standby Current ISB
Memory Retention
Current
DTMF Output Voltage VTO Row group,
Pre-emphasis Col/Row,
DTMF Distortion THD
IMR
= VSS, No load
& No key entry
= VDD,
VDD = 1.0V
RL = 5 KΩ
VDD = 2.0 to 5.5V
RL = 5 KΩ,
VDD = 2.0 to 5.5V
- - 15
- - 0.2
130 150 170 mVrms
1 2 3 dB
- -30 -23 dB
µA
µA
- 8 -
Page 9
W91330N SERIES
DP
MUTE
HKS
DC Characteristics, continued
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
DTMF Output DC
Level
DTMF Output Sink
Current
Output Sink
Current
T/P
Current
Key Tone Output IKTH VKTH = 2.0V 0.5 - - mA
Current IKTL VKTL = 0.5V 0.5 - - mA
HFO Drive/Sink IHFH VHFH = 2.0V 0.5 - - mA
Current IHFL VHFL = 0.5V 0.5 - - mA
Keypad Input Drive
Current
Keypad Input Sink
Current
Resistor
Keypad Resistance RK - - - 5
Output Sink
I/P Pull-High
VTDC
ITL VTO = 0.5V 0.2 - - mA
IPL VPO = 0.5V 0.5 - - mA
ITML VTMO = 0.5V 0.5 - - mA
IKD VI = 0.0V 30 - -
IKS VI = 2.5V 200 400 -
RHK - - 300 -
RL = 5 KΩ,
VDD = 2.0 to 5.5V
1.0 - 3.0 V
µA
µA
KΩ
KΩ
AC CHARACTERISTICS
(VDD−VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded.)
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Key-in Debounce TKID - - 20 - mS
Key Release Debounce TKRD - - 20 - mS
Off-Hook Delay TOFD Lock only - 300 - mS
First Key-in Delay TFKD Lock only - 300 - mS
Pre-digit-pause1 TPDP1 Mode = VDD - 40 - mS
10 ppS Mode = Floating - 33.3 -
Pre-digit-pause2 TPDP2 Mode = VDD - 20 - mS
20 ppS Mode = Floating - 16.7 Interdigit Pause TIDP 10 ppS - 800 - mS
(Auto Dialing) 20 ppS - 500 -
Publication Release Date: May 1997
- 9 - Revision A2
Page 10
W91330N SERIES
AC Characteristics, continued
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Make/Break Ratio M:B Mode = VDD - 40:60 - %
Mode = Floating - 33.3:66.7 Tone Output Duration TTD Auto dialing - 93 - mS
Intertone Pause TITP Auto dialing - 93 - mS
Flash Break Time TFB F1 - 600 -
F2 - 100 - mS
F3 300
F4 - 73 Flash Pause Time TFP F1, F2, F3, F4 - 1.0 - S
Pause Time TP R/P1 - 3.6 - S
R/P2 - 2.0 Key Tone Frequency FKT - - 600 - Hz
Key Tone Duration TKTD - - 35 - mS
One-Key Redial Break
Time
One-Key Redial Pause
Time
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100 Ω, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
FOSC. = 3.579545 MHz ± 0.02%.
2. Crystal oscillator accuracy directly affects these times.
TRB - - 2.2 - S
TRP - - 0.6 - S
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
KT
DTMF
OSC.
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode Without Lock Function)
Timing Waveforms, continued
< 600 mS
< 300 mS
3
T
KID
4
BM
T
IDP
T
PDP
OSCILLATION OSCILLATION
2
M B
T
IDP T
Low
IDP
- 10 -
T
KRD
2
T
KID
T
IDP
T
PDP
Page 11
W91330N SERIES
HKS
KEY IN
DP
T/P MUTE
KT
DTMF
OSC.
HKS
KEY IN
DP
T/P MUTE
< 600 mS
< 300 mS
4
T
KID
BM
T
PDP
T
FKD
2
M B
T
IDP
T
IDP
2
T
3
OFD
Low
OSCILLATION
OSCILLATION
Figure 1(b). Normal Dialing Timing Diagram (Pulse Mode with Lock Function)
< 600 mS
T
R/P
KRD
T
KID
BM
T
PDP
M B
T
IDP
T
IDP
T
IDP
T
KRD
T
KID
T
IDP
T
PDP
KT
DTMF
OSC.
Low
OSCILLATION
Figure 1(c). Auto Dialing Timing Diagram (Pulse Mode Without Lock Function)
- 11 - Revision A2
Publication Release Date: May 1997
Page 12
Timing Waveforms, continued
W91330N SERIES
HKS
KEY IN
DP
T/P MUTE
KT
DTMF
OSC.
HKS
KEY IN
DTMF
T/P MUTE
< 600 mS
T
FKD
R/P
T
KID
BM
T
PDP
M B
T
IDP
T
IDP
300 mS
T
OFD
Low
OSCILLATION
Figure 1(d). Auto Dialing Timing Diagram (Pulse Mode with Lock Function)
< 600 mS
< 300 mS
3
T
KID
T
TD
4
2
T
ITP
T
ITP
T
KRD
5
ITP
T
IDP
T
KRD
2
T
KID
T
ITPT
KT
DP
OSC.
OSCILLATION
High
OSCILLATION
Figure 2(a). Normal Dialing Timing Diagram (Tone Mode Without Lock Function)
- 12 -
OSCILLATION
Page 13
Timing Waveforms, continued
W91330N SERIES
HKS
KEY IN
DTMF
T/P MUTE
OSC.
HKS
KEY IN
DTMF
T/P MUTE
< 600 mS
< 300 mS
3
4
T
FKD
2
T
TD
5
T
ITP
KT
T
DP
OFD
OSCILLATION OSCILLATION
Figure 2(b). Normal Dialing Timing Diagram (Tone Mode with Lock Function)
< 600 mS
T
KRD
R/P
T
KID
T
TD
T
ITP
T
KRD
2
T
KID
T
ITP
T
ITP
T
ITP
KT
DP
OSC.
OSCILLATION
Figure 2(c). Auto Dialing Timing Diagram (Tone Mode Without Lock Function)
Publication Release Date: May 1997
- 13 - Revision A2
Page 14
Timing Waveforms, continued
W91330N SERIES
HKS
KEY IN
DTMF
T/P MUTE
KT
DP
OSC.
HKS
< 600 mS
T
KRD
R/P
300 mS
T
OFD
T
TD
T
FKD
OSCILLATION
T
ITP
T
ITP
Figure 2(d). Auto Dialing Timing Diagram (Tone Mode with Lock Function)
ON HOOK
HFI
HFO
T/P MUTE
CHIP ENBLE
High
Figure 3. Handfree Dialing Timing Diagram
- 14 -
Page 15
Timing Waveforms, continued
W91330N SERIES
HKS
KEY IN
DP
HFI
HFO
T/P MUTE
KT
DTMF
OSC.
< 600 mS
300 mS
T
OFD
R
T
KID
B
M
T
PDP
T
FKD
R
T
KID
IDP
T
RB
Low
OSCILLATION
Figure 4. One-key Redial Timing Diagram (Pulse Mode)
T
IDP
BM
T
RP
T
PDPT
HKS
KEY IN
DP
T/P MUTE
KT
DTMF
OSC.
< 600 mS
300 mS
T
OFD
T
FKD
OSCILLATION
2
R/P
T
KID
BM
T
PDP
3
T
P
Low
OSCILLATION
Figure 5. Pause Function Timing Diagram
- 15 - Revision A2
T
IDP
M
B
T
PDP
Publication Release Date: May 1997
Page 16
Timing Waveforms, continued
W91330N SERIES
HKS
KEY IN
DP
T/P MUTE
KT
DTMF
OSC.
HKS
KEY IN
DP
HFI
HFO
< 600 mS
300 mS
T
OFD
T
FKD
OSCILLATION
T
KID
2
*/T
T
KID
BM
T
PDP
T
IDP
3
T
P
OSCILLATION
Figure 6. Pulse-to-tone Timing Diagram
Low
F
F
T
T
FB
KID
F
T
FB
T
ITP
3
T
FP
T
KID
T/P MUTE
KT
DTMF
OSC.
OSCILLATION
Figure 7. Flash Timing Diagram
- 16 -
T
ITP
Page 17
W91330N SERIES
Headquarters
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792697
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-7197006
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27516023
FAX: 852-27552064
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-7190505
FAX: 886-2-7197502
Note: All data and specifications are subject to change without notice.
Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.
2730 Orchard Parkway, San Jose,
CA 95134, U.S.A.
TEL: 1-408-9436666
FAX: 1-408-9436668
Publication Release Date: May 1997
- 17 - Revision A2
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