PCF8534AU Universal LCD driver for low multiplex rates

The PCF8534A 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. It can be easily cascaded for larger LCD applications. The PCF8534A 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).

产品特点 Features
  • AEC-Q100 compliant (PCF8534AH/1) for automotive applications
  • Single-chip LCD controller and driver
  • Selectable backplane drive configurations: static or 2, 3, or 4 backplane multiplexing
  • 60 segment outputs allowing to drive:
    • 30 7-segment numeric characters
    • 15 14-segment alphanumeric characters
    • Any graphics of up to 240 elements
  • Cascading supported for larger applications
  • 60 x 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
  • Wide logic power supply range: from 1.8 V to 5.5 V
  • LCD and logic supplies may be separated
  • Low power consumption
  • 400 kHz I²C-bus interface
  • No external components required
  • Display memory bank switching in static and duplex drive modes
  • Versatile blinking modes
  • Silicon gate CMOS process
功能框图
PCF8534AU 功能框图
封装
型号 订购码 (12NC) 可订购的器件编号 产品状态 封装
PCF8534AU/DA/1 9352 876 64026 PCF8534AU/DA/1,026 量产 UC (OL-PCF8534A)
订货和供应
型号 订购码 (12NC) 可订购的器件编号 化学成分
PCF8534AU/DA/1 9352 876 64026 PCF8534AU/DA/1,026 PCF8534AU/DA/1
PCF8534AU 技术支持
档案名称 标题 类型 格式
PCF8534AU Universal LCD driver for low multiplex rates Data sheet pdf
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