PCF8534A datasheet(1/44 Pages) NXP

Part #	PCF8534A

Description	Universal LCD driver for low multiplex rates

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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1.

General description

The PCF8534A is a peripheral device which interfaces to almost any LCD with low

multiplex rates. It generates the drive signals for any static or multiplexed LCD containing

up to four backplanes and up to 60 segments. In addition, the PCF8534A can be easily

cascaded for larger LCD applications. The PCF8534A is compatible with most

microprocessors or microcontrollers and communicates via a two-line bidirectional

I2C-bus. Communication overheads are minimized using display RAM with

auto-incremented addressing, hardware subaddressing and display memory switching

(static and duplex drive modes).

The PCF8534A complies with AEC-Q100 (automotive).

2.

Features

I Single-chip LCD controller and driver

I Selectable backplane drive conﬁgurations: static or 2, 3 or 4 backplane multiplexing

I 60 segment drives:

N 30 8-segment numeric characters

N 16 15-segment alphanumeric characters

N Any graphics of up to 240 elements

I Cascading supported for larger applications

I 60 × 4-bit display data storage RAM

I Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for guest-host

LCDs and high threshold (automobile) twisted nematic LCDs

I Internal LCD bias generation with voltage follower buffers

I Selectable display bias conﬁgurations: static, 1⁄2 or 1⁄3

I Wide logic power supply range: from 1.8 V to 5.5 V

I LCD and logic supplies may be separated

I Low power consumption

I 400 kHz I2C-bus interface

I Compatible with any microprocessors or microcontrollers

I No external components

I Display memory bank switching in static and duplex drive modes

I Auto-incremented display data loading

I Versatile blinking modes

I Silicon gate CMOS process

PCF8534A

Universal LCD driver for low multiplex rates

Rev. 03 — 10 November 2008

Product data sheet

Similar Part No. - PCF8534A

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PCF8534A Datasheet(PDF) 1 Page - NXP Semiconductors

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