W91550DNH Просмотр технического описания (PDF) - Winbond

Номер в каталоге

Компоненты Описание

Список матч

W91550DNH

13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTIONS

Winbond 

W91550DN SERIES

Pin Description, continued

SYMBOL PIN I/O

FUNCTION

COM1−

COM3

62, 63, 2 O COM1−COM3 are common signal output terminals for the 1/3 duty

LCD.

1(A, B, C)−

10(A, B, C)

3−33

(unless

26-pin)

O 1(A, B, C) −10(A, B, C) are 10-digit segment signal output terminals.

BLOCK DIAGRAM

ROW

(R1 ~ R4)

COLUMN

(C1 ~ C6)

DTMF

XT XT

SYSTEM CLOCK

GENERATOR

KEYBOARD

INTERFACE

D/A

CONVERTER

READ/WRITE

COUNTER

CONTROL

LOGIC

LOCATION

LATCH

RAM

PULSE

CONTROL

LOGIC

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

BACKPLAN SIGNAL

GENERATOR

COM1 COM2 COM3

SEGMENT OUTPUT

DECODER

L.C.D.

HKS

B/M

MODE

LOCK

TEST

ATS

S/M

HFI

T/P MUTE

HPM MUTE

KMUTE

DP

HFO

-6-

Share Link: