W91432 datasheet(4/14 Pages) WINBOND

Part #	W91432

Description	13-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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W91430N SERIES

- 4 -

BLOCK DIAGRAM

ROW

COLUMN

DTMF

XT

MODE

RAM

COUNTER

SYSTEM CLOCK

GENERATOR

LOCATION

LATCH

D/A

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

READ/WRITE

(R1 to R4, Vx)

(C1 to C5)

T/P MUTE

CONTROL

LOGIC

PULSE

CONTROL

LOGIC

KEYBOARD

INTERFACE

CONVERTER

HKS

DP

FUNCTIONAL DESCRIPTION

Keyboard Operation

C1

C2

C3

C4

C5

1

2

3

S

M1

R1

4

5

6

F4

M2

R2

7

8

9

A

M3

R3

∗/T

0

#

R/P

SAVE

R4

F1

F2

F3

VX

• S: Store function key

• A: Indirect repertory dialing function key

• R/P: Redial and pause function key

• SAVE: Save function key

•

∗/T: ∗ in tone mode and P→T in pulse mode

• M1 to M3: One-touch memory

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

Note: D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #; Mn: M1, ..., M3; Ln: 0, ..., 9 ; Fn: F1, ..., F4

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W91432 Datasheet(PDF) 4 Page - Winbond

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