W91432 datasheet(1/14 Pages) WINBOND

Part #	W91432

Description	13-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

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Manufacturer	WINBOND [Winbond]

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W91430N SERIES

13-MEMORY TONE/PULSE DIALER

WITH SAVE FUNCTION

Publication Release Date: May 1997

- 1 -

Revision A3

GENERAL DESCRIPTION

The W91430N series are Si-gate CMOS ICs that provide the necessary signals for either tone or

pulse dialing. The W91430N series features save memory and a 13 by 16 digit automatic dialing

memory.

FEATURES

• DTMF/pulse switchable dialer

• Two by 32 digit redial and save memory

• Three by 16 digit one-touch direct memory

• Ten by 16 digit two-touch direct memory

• Redial memory cascadable with normal dialing; dialing length is unlimited, but if length oversteps

32-digit the redial function is inhibited

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

• Uses 5

× 5 keyboard

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

• Flash, pause, P

→T (Pulse-to-tone) can be stored as a digit in memory

• Dialing rate (10, 20 ppS ) selected by bonding option

• On hook debounce time: 150 msec.

• 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 sec.

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• Packaged in 18-pin plastic DIP

• The different dialers in the W91430N series are shown in the following table:

TYPE NO.

REPLACEMENT

TYPE NO.

PULSE

(ppS)

FLASH

(mS)

PAUSE

(S)

M/B

W91432N

W91432

10

600/300/73/100

3.6

W91444

W91446

W91447

W91445

W91434G

W91435G

W91433N

W91433

20

600/300/73/100

3.6

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