PCF8531 Ver la hoja de datos (PDF) - Philips Electronics

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componentes Descripción

Fabricante

PCF8531

34 × 128 pixel matrix driver

Philips Electronics 

Philips Semiconductors

34 × 128 pixel matrix driver

6 BLOCK DIAGRAM

Product specification

PCF8531

handbook, full pagewidth

VSS1

VSS2

T1

T2

T3

T4

VLCDIN

VLCDSENSE

VLCDOUT

R0 to R33

34

ROW

DRIVERS

C0 to C127

128

COLUMN

DRIVERS

VDD1 VDD2 VDD3

POWER-ON RESET

PCF8531

INTERNAL

RESET

BIAS

VOLTAGE

GENERATOR

VLCD

GENERATOR

DATA LATCHES

MATRIX

LATCHES

DISPLAY DATA RAM

MATRIX DATA

RAM

OSCILLATOR

TIMING

GENERATOR

DISPLAY

ADDRESS

COUNTER

ENR

RES

OSC

SCL

SDA

SDACK

INPUT

FILTERS

I2C-BUS

CONTROL

SA0

COMMAND

DECODER

ADDRESS

COUNTER

MGS465

Fig.1 Block diagram.

2000 Feb 11

4

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