PCF85134 - NXP

PCF85134 Universal LCD segment driver

The PCF85134 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD)1 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. It can be easily cascaded for larger LCD applications. The PCF85134 is compatible with most microcontrollers and com.

Features

 Single-chip LCD controller and driver
 Selectable backplane drive configurations: static, 2, 3, or 4 backplane multiplexing
 60 segment outputs allowing to drive:  30 7-segment alphanumeric characters  15 14-segment alphanumeric characters  Any graphics of up to 240 elements
 Cascading supported for larger applications
 60  4-bit display data storage RAM
 Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for high threshold twisted nematic LCDs
 Internal LCD bias generation with voltage follower buffers
 Selectable display bias configurations: static, 1⁄2, or 1⁄3.