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參數(shù)資料
| 型號： | 933964620112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顯示驅動器 |
| 英文描述： | LIQUID CRYSTAL DISPLAY DRIVER, PDSO56 |
| 封裝： | PLASTIC, VSOP-56 |
| 文件頁數(shù)： | 40/46頁 |
| 文件大小： | 287K |
| 代理商： | 933964620112 |
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Product INFOrmation page
Information as of 2001-06-12
PCF8578; LCD row/column driver for dot matrix graphic displays
product online
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Description
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The PCF8578 is a low power CMOS LCD row/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, configurable as 32/8, 24/16, 16/24 or 8/32 rows/columns. The PCF8578 can function as a
stand-alone LCD controller/driver for use in small systems, or for larger systems 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
(I2PC-bus). Communication overheads are minimized by a display RAM with auto-incremented addressing
and display bank switching.
Features
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Single chip LCD controller/driver
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Stand-alone or may be used with up to 32 PCF8579s (40960 dots possible)
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40 driver outputsconfigurable as 32/8, 24/16, 16/24 or 8/32 rows/columns
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Selectable multiplex rates; 1 : 8, 1 : 16, 1 : 24 or 1 : 32
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Externally selectable bias configuration, 5 or 6 levels
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1280-bit RAM for display data storage and scratch pad
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Display memory bank switching
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Auto-incremented data loading across hardware subaddress boundaries (with PCF8579)
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Provides display synchronization for PCF8579
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On-chip oscillator, requires only 1 external resistor
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Power-on reset blanks display
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Logic voltage supply range 2.5 to 6 V
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Maximum LCD supply voltage 9 V
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Low power consumption
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I2PC-bus interface
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TTL/CMOS compatible
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Compatible with most microcontrollers
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Optimized pinning for single plane wiring in multiple device applications (with PCF8579)
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Space saving 56-lead plastic mini-pack and 64 pin quad flat pack
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Compatible with chip-on-glass technology.
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Applications
Philips Semiconductors: Product information on PCF8578, LCD row/column driver for dot matrix graphic displays
file:///E|/export/projects/bitting2/imaging/BITTING/mail_pdf/cpl_images/f1.html (1 of 2) [7/17/2001 6:14:06 PM]
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