PCA85133中文资料Universal LCD driver for low multiplex rates数据手册恩XP规格书

描述 Description

General description
The PCA85133 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 80 segments and can easily be cascaded for larger LCD applications. The PCA85133 is compatible with most microprocessors or microcontrollers and communicates via a 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).
AEC-Q100 compliant for automotive applications.

特性 Features

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: 82 Hz or 110 Hz
Internal LCD bias generation with voltage-follower buffers
80 segment drives:
   Up to 40 7-segment alphanumeric characters
   Up to 21 14-segment alphanumeric characters
   Any graphics of up to 320 elements
80×4 bit RAM for display data storage
Auto-incremental display data loading across device subaddress boundaries
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 LCD supply range for low-threshold LCDs, for guest-host LCDs, and high-threshold  (automobile) twisted nematic LCDs: from 2.5 V to 8.0 V
Low power consumption
400 kHz I2C-bus interface
Compatible with 4-bit, 8-bit, or 16-bit microprocessors or microcontrollers
May be cascaded for large LCD applications (up to 5120 segments possible)
No external components needed
Compatible with Chip-On-Glass (COG) technology