PCA85233UG/2DA/Q1Z

LCD 驱动器 Automotive 80 x 4 LCD driver for low multiplex rates

Overview

The PCA85233 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 80 segments and can easily be cascaded for larger LCD applications. The PCA85233 is compatible with most microcontrollers and communicates via the two-line bidirectional I²C-bus. Communication overheads are minimized by a display RAM with auto-incremental addressing, by hardware subaddressing, and by display memory switching static and duplex drive modes.

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## Features

* AEC-Q100 compliant for automotive applications

* Single-chip LCD controller and driver

* Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing

* Selectable display bias configuration: static, 1/2, or 1/3

* Selectable frame frequency: 150 Hz or 220 Hz

* Internal LCD bias generation with voltage-follower buffers

* 80 segment drives:

* Up to 40 7-segment alphanumeric characters

* Up to 20 14-segment alphanumeric characters

* Any graphics of up to 320 elements

* 80 × 4 bit RAM for display data storage

* Display memory bank switching in static and duplex drive modes

* Versatile blinking modes

* Independent supplies possible for LCD and logic voltages

* Wide power supply range: from 1.8 V to 5.5 V

* Wide logic LCD supply range:

* From 2.5 V for low-threshold LCDs

* Up to 8.0 V for guest-host LCDs and high-threshold twisted nematic LCDs

* Low power consumption

* 400 kHz I²C-bus interface

* Extended temperature range up to 105 °C

* May be cascaded for large LCD applications up to 2560 segments possible

* No external components needed

* Compatible with Chip-On-Glass COG technology

## Features