PCF8532 datasheet(2/44 Pages) NXP

2 / 44 page

PCF8532_1

Product data sheet

Rev. 1 — 10 February 2009

2 of 44

NXP Semiconductors

PCF8532

Universal LCD driver for low multiplex rates

Ordering information

[1]

Chip with bumps in tray.

Marking

Block diagram

Table 1.

Ordering information

Type number

Package

Name

Description

Version

PCF8532U/2DA/1

PCF8532U

bare die; 197 bumps; 6.5

× 1.16 × 0.38 mm[1] PCF8532U

Table 2.

Marking codes

Type number

Marking code

PCF8532U/2DA/1

PC8532-1

Fig 1.

Block diagram of PCF8532

001aah851

LCD

VOLTAGE

SELECTOR

CLOCK SELECT

AND TIMING

BLINKER

TIMEBASE

OSCILLATOR

INPUT

FILTERS

I2C-BUS

CONTROLLER

POWER-ON

RESET

CLK

SYNC

OSC

SCL

SDA

BACKPLANE

OUTPUTS

DISPLAY

CONTROL

BP0 BP1 BP2 BP3

DISPLAY SEGMENT OUTPUTS

DISPLAY REGISTER

OUTPUT BANK SELECT

AND BLINK CONTROL

160

S0 to S159

SA0

VDD

PCF8532

LCD BIAS

GENERATOR

VSS

VLCD

COMMAND

DECODE

WRITE DATA

CONTROL

DISPLAY

RAM

DATA POINTER AND

AUTO INCREMENT

SUBADDRESS

COUNTER

SDAACK

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