PCF8579HT LCD column driver for dot matrix graphic displays

The PCF8579 is a low power CMOS1LCD column driver, designed to drive dot matrix graphic displays at multiplex rates of 1:8, 1:16, 1:24 or 1:32. The device has 40 outputs and can drive 32 x 40 dots in a 32 row multiplexed LCD. Up to 16 PCF8579s can be cascaded and up to 32 devices may be used on the same I²C-bus (using the two slave addresses). The device is optimized for use with the PCF8578 LCD row/column driver. Together these devices form a general purpose LCD dot matrix driver chip set, capable of driving displays of up to 40960 dots. The PCF8579 is compatible with most microcontrollers and communicates via a two-line bidirectional bus (I²C-bus). To allow partial VDD shutdown the ESD protection system of the SCL and SDA pins does not use a diode connected to VDD. Communication overhead is minimized by a display RAM with auto-incremented addressing and display bank switching

产品特点 Features
  • LCD column driver
  • Used in conjunction with the PCF8578, this device forms part of a chip set capable of driving up to 40960 dots
  • 40 column outputs
  • Selectable multiplex rates; 1:8, 1:16, 1:24 or 1:32
  • Externally selectable bias configuration, 5 or 6 levels
  • Easily cascadable for large applications (up to 32 devices)
  • 1280-bit RAM for display data storage
  • Display memory bank switching
  • Auto-incremented data loading across hardware subaddress boundaries (with PCF8578)
  • Power-On Reset (POR) blanks display
  • Logic voltage supply range 2.5 V to 6 V
  • Maximum LCD supply voltage 9 V
  • Low power consumption
  • I²C-bus interface
  • Compatible with most microcontrollers
  • Optimized pinning for single plane wiring in multiple device applications (with PCF8578)
  • Space saving 56-lead small outline package and 64-pin quad flat pack
应用
  • Automotive information systems
  • Telecommunication systems
  • Point-of-sale terminals
  • Industrial computer terminals
  • Instrumentation
功能框图
PCF8579HT 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
PCF8579HT/1 9352 891 91518 PCF8579HT/1 量产 TQFP64 (SOT357-1)
订货和供应
型号 订购码 (12NC) 可订购的器件编号 化学成分
PCF8579HT/1 9352 891 91518 PCF8579HT/1 PCF8579HT/1
PCF8579HT 技术支持
档案名称 标题 类型 格式
PCF8579HT LCD column driver for dot matrix graphic displays Data sheet pdf
AN10170 Design guidelines for COG modules with NXP monochrome LCD column driver for dot matrix graphic displays Application note pdf
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