W91473D datasheet(1/20 Pages) WINBOND

Part #	W91473D

Description	14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION

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Manufacturer	WINBOND [Winbond]

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W91473 SERIES

14-MEMORY TONE/PULSE SWITCHABLE DIALER

WITH HANDFREE AND LOCK FUNCTIONS

Publication Release Date: February 1995

- 1 -

Revision A3

GENERAL DESCRIPTION

The W91473 series are Si-gate CMOS IC tone/pulse switchable dialers containing a 14-channel

automatic dialing memory, including a 16-digit

× 3 emergency dialing memory and a 16-digit × 10

channel repertory memory that provides a 32-digit mercury memory. These dialers also provide flash,

clear, hold, lock, and one-key redial functions.

FEATURES

• DTMF/Pulse switchable dialer

• 32-digit LNB (last number buffer) memory

• 32-digit mercury memory

• 16-digit

× 3 one-touch direct repertory memory

• 16-digit

× 10 direct repertory memory

• Uses 7

× 5 keyboard

• Flash time: 98 mS, 305 mS, or 600 mS (selectable by keypad option)

• Minimum tone output duration: 93 mS

• Minimum intertone pause: 93 mS

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• Packaged in 22, 24, or 28-pin plastic DIP

• The different dialers in the W91473 series are shown in the following table:

TYPE NO.

PULSE

(ppS)

MEMORY

MERCURY

MEMORY

HOLD

HANDFREE

LOCK

PACKAGE

W91473

10

14

Yes

-

22

W91473L

10

14

-

Yes

22

W91473A

10

14

Yes

-

24

W91473AL

10

14

-

Yes

24

W91473B

10/20

14

Yes

-

28

W91473BL

10/20

14

Yes

28

W91473C

10/20

14

Save Memory

Yes

-

28

W91473CL

10/20

14

Save Memory

Yes

28

W91473D

10

14

Save Memory

-

22

W91473DL

10

14

Save Memory

-

Yes

22

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