PCF8562TT/2

低复用率的通用LCD驱动器 Universal LCD driver for low multiplex rates

General description

The PCF8562 is a peripheral device which interfaces to almost any Liquid Crystal Display LCD1 with low multiplex rates.It generates the drive signals for any static or multiplexed LCD containing up to four backplanes and up to 32 segments. The PCF8562 is compatible with most microcontrollers and  communicates via the two-line bidirectional I2C-bus. Communication overheads are minimized by a display RAM with auto-incremented addressing, by hardware subaddressing and by display memory switching static and duplex drive modes.

Features and benefits

AEC-Q100 compliant PCF8562TT/S400/2 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

Internal LCD bias generationwith voltage-follower buffers

32 segment drives:

  Up to sixteen 7-segment numeric characters

  Up to eight 14-segment alphanumeric characters

  Any graphics of up to 128 elements

324-bit RAM for display data storage

Auto-incremented display data loading across device subaddress boundaries

Display memory bank switching instatic 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 6.5 V for guest-host LCDs and high-threshold twisted nematic LCDs

Low power consumption

400 kHz I2C-bus interface

No external components required

Manufactured insilicon gate CMOS process