W91510DLNF Просмотр технического описания (PDF) - Winbond

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W91510DLNF

TONE/PULSE DIALER WITH RTC AND LCD DISPLAY FUNCTIONS

Winbond 

Preliminary W91510DN SERIES

Pin Description, continued

SYMBOL PIN NO.

COM1 to

COM4

33−36

SEG1 to

SEG32

37−64, 1−4

XT2, XT2

26, 27

VRTC1,

VRTC2

VDD, VSS

MODE

28, 30

5, 7

12

I/O

FUNCTION

O COM1 to COM4 are the common signal output terminal for the

1/4 duty LCD.

O SEG1 to SEG32 are the 16-digit segment signal outputs.

I, A quartz crystal oscillator provides an RTC frequency time base

O of 32.768 KHz.

I Either VRTC1 should be connected to a 1.5V battery, and

VRTC2 should be connected a capacitor 0.1 µF to ground.

I Power input pins.

I Pulling mode pin to VSS places the dialer in tone mode.

Pulling mode pin to VDD places the dialer in pulse mode (10

ppS, M/B = 1/2).

Leaving mode pin floating places the dialer in pulse mode (10

ppS, M/B = 2/3).

BLOCK DIAGRAM

VDD VSS

XT2

XT2

REAL TIME CLOCK

GENERATOR

XT1

XT1

SYSTEM CLOCK

GENERATOR

ROW

(R1 ~ R4)

COLUMN

(C1 ~ C5)

KEYBOARD

INTERFACE

READ/WRITE

COUNTER

LOCATION

LATCH

RAM

CONTROL

LOGIC

PULSE/

TONE

CONTROL

LOGIC

DTMF

VLCD

VRTC1

VRTC2

D/A

CONVERTER

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

BACKPLANE SIGNAL

GENERATOR

SEGMENT OUTPUT

DECODER

CP CN

COM1 COM2 COM3 COM4

L.C.D.

HKS

HFI

LOCK

MODE

H/P MUTE

T/P MUTE

DP

HFO

Publication Release Date: May 1997

-5-

Revision A2

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