W91572DNF 查看數據表（PDF） - Winbond

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产品描述 (功能)

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W91572DNF

23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL RTC AND LCD DISPLAY FUNCTIONS

Winbond 

W91570DN SERIES

BLOCK DIAGRAM

V DD VSS

XT2

XT2

REAL TIME CLOCK

GENERATOR

XT1

XT1

SYSTEM CLOCK

GENERATOR

ROW

(R1 to R5)

COLUMN

(C1 to C9)

DTMF

V LCD

V RTC1

V RTC2

KEYBOARD

INTERFACE

D/A

CONVERTER

READ/WRITE

COUNTER

CONTROL

LOGIC

LOCATION

LATCH

RAM

PULSE/

TONE

CONTROL

LOGIC

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

BACKPLANE SIGNAL

GENERATOR

CP CN

COM1 COM2 COM3 COM4

SEGMENT OUTPUT

DECODER

L.C.D.

SET RTC

AP SET

HKS

HFI

LOCK

B/M

MODE

ARD

H/P MUTE

T/P MUTE

DP/C10

HFO

KT

KMUTE

FUNCTIONAL DESCRIPTION

Keyboard Operation

C1

C2

1

2

4

5

7

8

*/T

0

F1

F2

R/P2

-

C3

3

6

9

#

F3

ICON12

C4

E

MUTE

A2

R/P1

CHK

ICON13

C5

HOUR

MIN

SAVE

OKR

TIM

ICON14

C6

M0

M1

M2

M3

M4

ICON15

C7

M5

M6

M7

M8

M9

ICON16

C8

C9

M10 M15

M11 M16

M12 M17

M13 M18

M14 M19

DP / C10

HOLD1

HOLD2

MER

A1

RTC

R1

R2

R3

R4

R5

VDD/VX/R6

Publication Release Date: May 1997

-7-

Revision A2

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