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PCF8534 Datasheet Universal Lcd Driver

Manufacturer: NXP Semiconductors

Overview: www.DataSheet4U.com PCF8534 Universal LCD driver for low multiplex rates Rev. 00.05 — 20 February 2007 Preliminary datasheet 1.

General Description

The PCF8534 is a peripheral device which interfaces to almost any Liquid Crystal Display (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 and can easily be cascaded for larger LCD applications.

The PCF8534 is compatible with most microprocessors / microcontrollers and communicates via a two-line bidirectional I2C-bus.

Key Features

  • Single-chip LCD controller / driver.
  • Selectable backplane drive configuration: static or 2 / 3 / 4 backplane multiplexing.
  • Internal LCD bias generation with voltage-follower buffers.
  • 60 x 4-bit RAM for display data storage.
  • Selectable display bias configuration: static, 1⁄2 or 1⁄3.
  • 60 segment drives: up to thirty 8-segment numeric characters; up to sixteen 15-segment alphanumeric characters; or any graphics of up to 240 elements.
  • A.

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