PCF8579H View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

PCF8579H

LCD column driver for dot matrix graphic displays

NXP Semiconductors. 

NXP Semiconductors

6. Block diagram

PCF8579

LCD column driver for dot matrix graphic displays

VDD

V3

V4

VLCD

TEST

VSS

POWER-ON

RESET

A3

A2

A1

A0

C39 - C0

COLUMN(1)

DRIVERS

PCF8579

OUTPUT

CONTROLLER

Y DECODER

AND SENSING

AMPLIFIERS

32 × 40 BIT

DISPLAY RAM

DISPLAY

DECODER

X DECODER

SUBADDRESS

COUNTER

RAM DATA POINTER

Y

X

TIMING

GENERATOR

SYNC

CLK

SCL

SDA

INPUT

FILTERS

I2C-BUS

CONTROLLER

COMMAND

DECODER

n.c.

SA0

(1) Operates at LCD voltage levels, all other blocks operate at logic levels.

Fig 1. Block diagram

msa919

PCF8579_5

Product data sheet

Rev. 05 — 11 May 2009

© NXP B.V. 2009. All rights reserved.

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