PCF8578HT LCD row/column driver for dot matrix graphic displays

The PCF8578 is a low power CMOS1LCD row and 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, of which 24 are programmable and configurable for the following ratios of rows/columns: 32/8, 24/16, 16/24 or 8/32. The PCF8578 can function as a stand-alone LCD controller and driver for use in small systems. For larger systems it can be used in conjunction with up to 32 PCF8579s for which it has been optimized. Together these two devices form a general purpose LCD dot matrix driver chip set, capable of driving displays of up to 40960 dots. The PCF8578 is compatible with most microcontrollers and communicates via a two-line bidirectional bus (I²C-bus). Communication overhead is minimized by a display RAM with auto-incremented addressing and display bank switching

产品特点 Features
  • Single chip LCD controller and driver
  • Stand-alone or may be used with up to 32 PCF8579s (40960 dots possible)
  • 40 driver outputs, configurable for several ratios of rows/columns: 32/8, 24/16, 16/24 or 8/32
  • Selectable multiplex rates: 1:8, 1:16, 1:24 or 1:32
  • Externally selectable bias configuration, 5 or 6 levels
  • 1280-bit RAM for display data storage and scratch pad
  • Display memory bank switching
  • Auto-incremented data loading across hardware subaddress boundaries (with PCF8579)
  • Provides display synchronization for PCF8579
  • On-chip oscillator, requires only 1 external resistor
  • 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 PCF8579)
  • 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
PCF8578HT 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
PCF8578HT/1 9352 891 89518 PCF8578HT/1,518 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
PCF8578HT/1 9352 891 89518 PCF8578HT/1,518 PCF8578HT/1
PCF8578HT 技术支持
档案名称 标题 类型 格式
PCF8578HT LCD row/column driver for dot matrix graphic displays Data sheet pdf
AN10170 Design guidelines for COG modules with NXP monochrome LCD row/column driver for dot matrix graphic displays Application note pdf
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AN11267 EMC and system level ESD design guidelines for LCD row/column driver for dot matrix graphic displays Application note pdf
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75017424 NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concerns Leaflet pdf
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