Datasheet W91561LN, W91561ALN, W91560N, W91560BN, W91560AN Datasheet (Winbond Electronics)

Page 1

W91560N SERIES

3-MEMORY TONE/PULSE DIALER WITH SAVE,

KEYTONE, LOCK AND HANDFREE FUNCTIONS

GENERAL DESCRIPTION

The W91560N series are tone/pulse switchable telephone dialers with three memories, keytone or lock, and handfree dialing control. These chips are fabricated using Winbond's high-performance CMOS technology and thus offer good performance in low-voltage, low-power operations.

FEATURES

• DTMF/pulse switchable dialer

• Two by 32 digit redial and save memory

• Three by 16 digit one-touch direct repertory memory

• Pulse-to-tone (*/T) keypad for long distance call operation

• Cascaded dialing

• Uses 5 × 5 keyboard

• Easy operation with redial, flash, pause, and */T keypads

• Pause, P→T (pulse-to-tone) can be stored as a digit in memory

• On-hook debounce time: 150 mS (Unlock Mode), 200 mS (Lock Mode)

• 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out

• Dialing rate (10 ppS or 20 ppS) selectable by bonding option

• Minimum tone output duration: 93 mS

• Minimum intertone pause: 93 mS

• Pause time: 3.6 sec.

• 300 mS off-hook delay in lock mode (

• Flash break time (73 mS, 100 mS, 300 mS, or 600 mS) selectable by keypad; pause time is 1.0S

• Make/break ratio (40:60 or 33.3:66.7) selectable by MODE pin

• Key tone output for valid keypad entry recognition

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• 18 or 20-pin dual-in-line plastic package

• The different dialers in the W91560N series are shown in the following table:

TYPE NO. REPLACEMENT

TYPE NO.

W91560N W91560 10 600/300/73/100 Yes - - 18 W91560AN W91560A 10 600/300/73/100 Yes - Yes 20 W91560BN W91560B 20 600/300/73/100 Yes - Yes 20 W91561LN W91561L 10 600/300/73/100 - Yes - 18 W91561ALN W91561ALN 10 600/300/73/100 - Yes Yes 20

PULSE

(ppS)

remains low for 300 mS while off hook)

FLASH

(mS)

KEY

TONE

LOCK HANDFREE

DIALING

PACKAGE

(PINS)

Publication Release Date: February 1996

- 1 - Revision A1

Page 2

PIN CONFIGURATIONS

W91560N SERIES

T/P MUTE

9 10

W91560N

MODE

DTMF

DP/C5

HKS

T/P MUTE

HFI

10 11

W91560AN/BN

R4C1

MODE

DTMF

DP/C5

HKS

HFO

R4C1

LOCK

T/P MUTE

9 10

W91561LN

MODE

DTMF

DP/C5

HKS

LOCK

T/P MUTE

HFI

10 11

W91561ALN

MODE

DTMF

DP/C5

HKS

HFO

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W91560N SERIES

MUTE

HKS

PIN DESCRIPTION

SYMBOL 18-PIN 20-PIN I/O FUNCTION

Column-

Row Inputs

XT 7 7 I A built-in inverter provides oscillation with an

T/P

MODE 13 15 I

1−4

15−18

8 8 O Crystal oscillator output pin. 9 9 O

10 12 I

1−4

17−20

I The keyboard input is compatible with a standard 5 x 5

keyboard, an inexpensive single contact (Form A) keyboard, and electronic input.

In normal operation, any single button can be pushed to produce dual tone, pulses, or function. Activation of two or more buttons will result in no response except for single tone.

inexpensive 3.579545 MHz crystal. The oscillator ceases when a keypad input is not sensed. The crystal frequency deviation is 0.02%.

The T/P open drain output.

The output transistor is switched on low level during dialing sequence (both pulse and tone mode). Otherwise, it is switched off.

Pulling mode pin to VSS places dialer in tone mode. Pulling mode pin to VDD places dialer in pulse mode

with M/B ratio of 40:60 (10 ppS, except for W91560BN, which is 20 ppS).

Leaving mode pin floating places dialer in pulse mode with M/B ratio of 33.3:66.7 (10 ppS, except for W91560BN, which is 20 ppS).

The the handset is on-hook or off-hook.

(hook switch) input is used to sense whether

is a conventional CMOS N-channel

KT 5

(except for W91561LN)

(except for

W91561ALN)

In on-hook state, operation.

In off-hook state, operation.

pin is pulled to VDD by internal resistor.

The key tone output is a conventional CMOS inverter. The key tone is generated when any valid key is pressed; the KT pin generates a 1.2 KHz square wave at 35 mS. When no key is pressed, the KT pin remains in low state.

- 3 - Revision A1

= 1: chip is in sleeping mode, no

= 0: chip is enabled for normal

Publication Release Date: February 1996

Page 4

W91560N SERIES

LOCK

Pin Description, continued

SYMBOL 18-PIN 20-PIN I/O FUNCTION

(only for

W91561LN)

(only for

W91561ALN)

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.

The function of the

pin is shown below:

11 13 O

DTMF 12 14 O

LOCK PIN

Floating

FUNCTION

"0", "9" dialing inhibited Normal dialing mode "0" dialing inhibited

N-channel open drain dialing pulse output. Flash key will cause DP to be active in either tone mode

or pulse mode. In lock mode, the DP remains low for 300 mS during off-

hook delay time. The timing diagram for pulse mode is shown in Figure 1

(a, b, c, d). During pulse dialing, this pin remains in low state

regardless of keypad input. In the tone mode, it will output a dual or single tone.

A detailed timing diagram for tone mode is shown in Figure 2(a, b, c, d).

OUTPUT FREQUENCY

R1 R2 R3 R4 C1 C2 C3

Specified

697 770 852

941 1209 1336 1477

Actual

699 766 848

948 1216 1332 1472

Error %

+0.28

-0.52

-0.47

+0.74

+0.57

-0.30

-0.34

VDD, VSS 14, 6 16, 6 I

Power input pins for the dialer chip. VDD is the main power and VSS is the ground.

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W91560N SERIES

HFI

Pin Description, continued

SYMBOL 18-PIN 20-PIN I/O FUNCTION

HFO

- 10, 11 I, O Handfree control pins. A low pulse on the

control state. Status of the handfree control state is listed in the following table:

input pin toggles the handfree

BLOCK DIAGRAM

CURRENT STATE

HOOK SW.

On Hook Off Hook

HFO

Low High

High On Hook Off Hook Off Hook

Low

High

INPUT

HFI HFI HFI

Off Hook On Hook On Hook

NEXT STATE

HFO

High Low Low Low Low High

DIALING

Yes

No Yes Yes

No Yes

pin is pulled to VDD by an internal resistor.

Detailed timing diagram is shown in Figure 3.

XT XT

HKS

HFI

SYSTEM CLOCK GENERATOR

ROW

(R1 to R4, Vx)

COLUMN

(C1 to C4)

DTMF

KEYBOARD INTERFACE

D/A

CONVERTER

LOCATION LATCH

ROW & COLUMN PROGRAMMABLE COUNTER

- 5 - Revision A1

READ/WRITE COUNTER

RAM

DATA LATCH & DECODER

CONTROL

LOGIC

PULSE CONTROL LOGIC

LOCK

MODE

T/P MUTE KT DP/C5

HFO

Publication Release Date: February 1996

Page 6

W91560N SERIES

C1C2C3

DP/C5

HFI

¡õ

HFI

¡õ

HFI

¡õ

FUNCTIONAL DESCRIPTION

Keyboard Operation

1 2 3 S M1 R1 4 5 6 F4 M2 R2

7 8 9 M3 R3 */T 0 # R/P SAVE R4 F1 F2 F3 Vx

• S: Store function key

• R/P: Redial and pause function key

• */T: * in tone mode and P→T key in pulse mode

• SAVE: Save function key for one-touch 32-digit memory

• M1 to M3: One-touch memory

• F1, ..., F4: Flash function keys: F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS, and all

flash pause time is 1.0 mS

Note: Mn = M1, ..., M3; */T, #, Pause.

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 exceeds 32 digits in nomal dialing.

), D1 , D2 , ..., Dn

Redialing

OFF HOOK (or ON HOOK &

ON HOOK , OFF HOOK (or ON HOOK &

1. The redial memory content will be D1, D2, ..., Dn.

2. The R/P key can execute the redial function only as first key-in after off-hook; otherwise, it will execute the pause function.

), D1 , D2 , ..., Dn BUSY, Come

), R/P

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Page 7

Number Store

HFI

¡õ

HFI

¡õ

HFI

¡õ

HFI

¡õ

HFI

¡õ

HFI

¡õ

W91560N SERIES

1. OFF HOOK (or ON HOOK &

, S , Mn

a. If the sequence of dialed digits D1, D2, ..., Dn has not finished,

b. D1, D2, ..., Dn will be dialed out and stored in memory location Mn.

2. OFF HOOK (or ON HOOK &

, S , Mn

a. D1, D2, ..., Dn will be stored in memory location Mn but will not be dialed out. b. R/P and */T keys can be stored as a digit in memory, but R/P key cannot be the first

digit. In store mode,

c. The store mode is released after the store function is executed or when the state of the hook switch

changes or the flash function is executed.

R/P is the pause function key.

), D1 , D2 , ..., Dn , S

S will be ignored.

), S , D1 , D2 , ..., Dn

Save

1. OFF HOOK (or ON HOOK &

), D1 , D2 , ..., Dn , SAVE

a. D1, D2, ..., Dn will be dialed out. b. If the dialingofD1 to Dn is finished, pressing SAVE will cause D1 to Dn to be

duplicated to save memory.

2. ON HOOK , OFF HOOK (or

D1 to Dn will be dialed out after the SAVE key is pressed.

), SAVE

Repertory Dialing

OFF HOOK (or ON HOOK &

The content of memory location Mn (or save) will be dialed out.

), Mn (or SAVE )

Access Pause

OFF HOOK (or ON HOOK &

1. The pause function can be stored as a digit in memory.

2. The pause function is executed in normal dialing or redialing or memory dialing.

), D1 , D2 , R/P , D3 , ..., Dn

Publication Release Date: February 1996

- 7 - Revision A1

Page 8

3. The pause function timing diagram is shown in Figure 4.

HFI

¡õ

HFI

¡õ

HFI

¡õ

Pulse-to-Tone (*/T)

W91560N SERIES

OFF HOOK (or ON HOOK &

D1' , D2' , ..., Dn'

1. If the mode switch is set to pulse mode, then the output signal will be: D1, D2, ..., Dn, Pause, D1', D2', ..., Dn'

(Pulse) (Tone)

2. If the mode switch is set to tone mode, then the output signal will be: 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 function timing diagram is shown in Figure 5.

), D1 , D2 , ..., Dn , */T ,

Flash

OFF HOOK (or ON HOOK &

1. Fn = F1, ..., F4.

2. If Fn is pressed, the dialer will execute flash break time of 600 mS (F1), 300 mS (F2),

73 mS (F3), or 100 mS (F4). The flash pause time is 1.0 second.

3. Flash key cannot be stored as a digit in memory. The flash key has first priority among 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 6.

), Fn

Cascaded Dialing

OFF HOOK (or ON HOOK &

1. Normal dialing + Repertory dialing + Normal dialing

(1st sequence) (2nd sequence)

2. Repertory dialing + Normal dialing + Repertory dialing

(1st sequence) (2nd sequence)

3. Redialing + Normal dialing + Repertory dialing

(1st sequence) (2nd sequence)

4. Redialing and save dialing is valid only as the first key-in.

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W91560N SERIES

HKS

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATING UNIT

DC Supply Voltage VDD−VSS -0.3 to +7.0 V Input/Output Voltage VIL VSS -0.3 V

VIH VDD +0.3 V VOL VSS -0.3 V VOH VDD +0.3 V

Power Dissipation PD 120 mW Operating 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.

°C °C

DC CHARACTERISTICS

(VDD−VSS = 2.5V, Fosc. = 3.58 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 - 0.40 0.60 mA

Pulse - 0.20 0.40 mA

Standby Current ISB

Memory Retention Current

Tone Output Voltage VTO

Pre-emphasis - Col/Row, VDD = 2.0 to

IMR

= 0, No load &

No key entry

= 1, VDD = 1.0V

Row group, RL = 5 KΩ

5.5V

- - 15

- - 0.2

130 150 170 mVrm

1 2 3 dB

µA

DTMF Distortion THD

DTMF Output DC Level

DTMF Output Sink Current

Output Sink

Current

VTDC

ITL VTO = 0.5V 0.2 - - mA

IPL VPO = 0.5V 0.5 - - mA

RL = 5 KΩ, VDD = 2.0 to

5.5V RL = 5 KΩ, VDD = 2.0 to

5.5V

- 9 - Revision A1

- -30 -23 dB

1.0 - 3.0 V

Publication Release Date: February 1996

Page 10

W91560N SERIES

MUTE

DC Characteristics, continued

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT

T/P Sink Current

KT Drive/Sink 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 Keypad Resistance - - - - 5.0

Output

IML VMO = 0.5V 0.5 - - mA

IKD VI = 0V 4 - -

IKS VI = 2.5V 200 400 -

AC CHARACTERISTICS

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT

Key-in Debounce TKID - - 20 - mS Key Release Debounce TKRD - - 20 - mS On-hook Debounce TOHD Lock Mode - 20 - mS

Unlock Mode - 150 - mS

Pre-digit Pause

TPDP1 Mode Pin = VDD - 40 - mS

µA

KΩ

10 ppS Mode Pin = Floating - 33.3 - mS

Pre-digit Pause

Interdigit Pause TIDP 10 ppS - 800 - mS (Auto dialing) 20 ppS - 500 - mS Make/Break Ratio M:B Mode Pin = VDD - 40:60 - %

Tone Output Duration TTD - 93 - mS Intertone Pause TITP - 93 - mS Flash Break Time TFB F1 - 600 - mS

TPDP2 Mode Pin = VDD - 20 - mS

20 ppS Mode Pin = Floating - 16.7 - mS

Mode Pin = Floating - 33.3:66.7 - %

F2 - 300 F3 - 73 F4 - 100 -

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W91560N SERIES

AC Characteristics, continued

PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT

Flash Pause Time TFP - 1.0 - S Pause Time TP - 3.6 - S Key Tone Frequency FKT - 1.2 - KHz Key Tone Duration TKTD - 35 - mS Off-hook Delay TOFD Lock Only - 300 - mS First Key-in Delay TFKP Lock Only - 300 - mS

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.

TIMING WAVEFORMS

HKS

KEY IN

T/P MUTE

DTMF

OSC.

< 600 mS

< 300 mS

KID

IDP

PDP

OSCILLATION OSCILLATION

Low

IDP

M B

IDP

Figure 1a. Normal Dialing Timing Diagram (Pulse Mode Without Lock Function)

KID

PDP

KRD

IDP

Publication Release Date: February 1996

- 11 - Revision A1

Page 12

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

T/P MUTE

DTMF

OSC.

HKS

KEY IN

T/P MUTE

< 600 mS

< 300 mS

KID

PDP

FKD

M B

IDP

OFD

Low

OSCILLATION OSCILLATION

Figure 1b. Normal Dialing Timing Diagram (Pulse Mode with Lock Function)

< 600 mS

R/P

KRD

KID

PDP

M B

IDP

KRD

KID

IDP

PDP

DTMF

OSC.

Low

OSCILLATION

Figure 1c. Auto Dialing Timing Diagram (Pulse Mode Without Lock Function)

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Page 13

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

T/P MUTE

DTMF

OSC.

HKS

KEY IN

DTMF

T/P MUTE

< 600 mS

300 mS

OFD

R/P

KID

PDP

FKD

IDP

Low

OSCILLATION

Figure 1d. Auto Dialing Timing Diagram (Pulse Mode with Lock Function)

< 600 mS

< 300 mS

KID

ITP

KRD

ITP

IDP

KRD

KID

ITP

OSC.

OSCILLATION OSCILLATION

High

OSCILLATION

Figure 2a. Normal Dialing Timing Diagram (Tone Mode Without Lock Function)

Publication Release Date: February 1996

- 13 - Revision A1

Page 14

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

DTMF

T/P MUTE

OSC.

HKS

KEY IN

DTMF

T/P MUTE

< 600 mS

< 300 mS

FKD

OSCILLATION OSCILLATION

ITP

OFD

Figure 2b. Normal Dialing Timing Diagram (Tone Mode with Lock Function)

< 600 mS

KRD

R/P

KID

ITP

KRD

KID

ITP

OSC.

High

OSCILLATION

Figure 2c. Auto Dialing Timing Diagram (Tone Mode Without Lock Function)

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Page 15

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

DTMF

T/P MUTE

OSC.

< 600 mS

KRD

OSCILLATION

ITP

300 mS

OFD

R/P

FKD

Figure 2(d) Auto Dialing Timing Diagram (Tone Mode with Lock Function)

HKS

ON HOOK

ITP

HFI

HFO

T/P MUTE

CHIP ENBLE

High

Figure 3. Handfree Timing diagram

Publication Release Date: February 1996

- 15 - Revision A1

Page 16

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

T/P MUTE

DTMF

OSC.

HKS

< 600 mS

300 mS

OFD

FKD

OSCILLATION

< 600 mS

R/P

KID

PDP

Low

OSCILLATION

Figure 4. Pause Function Timing Diagram

IDP

PDP

KEY IN

T/P MUTE

DTMF

OSC.

300 mS

OFD

FKD

OSCILLATION

*/T

KID

PDP

IDP

OSCILLATION

Figure 5 Pulse-to-Tone Timing Diagram

- 16 -

ITP

Page 17

Timing Waveforms, continued

W91560N SERIES

HKS

KEY IN

HFI

HFO

T/P MUTE

DTMF

OSC.

Low

KID

OSCILLATION

KID

ITP

Figure 6. Flash Timing Diagram

Publication Release Date: February 1996

- 17 - Revision A1

Page 18

W91560N 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.

- 18 -

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