W91580 查看數據表（PDF） - Winbond

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W91580

24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS

Winbond 

W91580 SERIES

BLOCK DIAGRAM

ROW

(R1 to R5)

KEYBOARD

INTERFACE

COLUMN

(C1 to C8)

DTMF

D/A CONVERTER

HKS

MODE

XT

XT

SYSTEM CLOCK

GENERATOR

DRS

HFI

READ/WRITE

COUNTER

RAM

CONTROL

LOGIC

PULSE

CONTROL

LOGIC

KT

T/P MUTE

HPM MUTE

HFO

DP/C9

LOCATION

LATCH

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

FUNCTIONAL DESCRIPTION

Keyboard Operation

C1

C2

C3

C4

C5

C6

C7 DP /C9 C8

1

2

3

S

M00

M05

M10

M15

EM1 R1

4

5

6

MEMO M01

M06

M11

M16

EM2 R2

7

8

*/T

0

9

CLR

M02

M07

M12

M17

EM3 R3

#

R/P

M03

M08

M13

M18

H

R4

F1

F2

F3

R

M04

M09

M14

M19 *MER R5

* MER is for W91580B only; Fin W91580C this key performs Save function.

Publication Release Date: Auguest 1995

-5-

Revision A3

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