PCF8801 데이터 시트보기 (PDF) - Philips Electronics

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PCF8801

LCD driver for 140 × 2 segments

Philips Electronics 

Philips Semiconductors

LCD driver for 140 × 2 segments

BLOCK DIAGRAM

Product specification

PCF8801

handbook, full pagewidth

LDPI

LDNI

DI1

DO1

DIR

CLKI

CLKO

DO2

DI2

OSCI

OSCO

INT_OSCO

REXT

LDPO

LDNO

280-BIT

BI-

SH1_1

SH140_2

DIRECTIONAL

SHIFT

REGISTER

280-BIT

OUTPUT

REGISTER

IO1_1

IO140_2

OUTPUT

MULTIPLEXER

OM1

OM140

ROUTING

BLOCK

OUTPUT

DRIVERS

S1

S140

÷2

FRAME GENERATOR ÷4

INTERNAL OSCILLATOR

PCF8801

LCD BIAS GENERATOR

COMMON

M

VMID

BACKPLANE DRIVERS

POWER-ON-RESET

COM1

COM2

RESET

T1 T2 T3

VSS1 VSS3 VSS5

VSS2 VSS4

VDD1 VDD3 VDD5

VDD2 VDD4

MGL915

Fig.1 Block diagram.

2000 Feb 04

3

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