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PCF8578 Datasheet(PDF) 3 Page - NXP Semiconductors |
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PCF8578 Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 44 page  1998 Sep 08 3 Philips Semiconductors Product specification LCD row/column driver for dot matrix graphic displays PCF8578 1 FEATURES • Single chip LCD controller/driver • Stand-alone or may be used with up to 32 PCF8579s (40960 dots possible) • 40 driver outputs, configurable as 32⁄8, 24⁄16, 16⁄24 or 8 ⁄32 rows/columns • 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 blanks display • Logic voltage supply range 2.5 to 6 V • Maximum LCD supply voltage 9 V • Low power consumption • I2C-bus interface • TTL/CMOS compatible • Compatible with most microcontrollers • Optimized pinning for single plane wiring in multiple device applications (with PCF8579) • Space saving 56-lead plastic mini-pack and 64 pin quad flat pack • Compatible with chip-on-glass technology. 2 APPLICATIONS • Automotive information systems • Telecommunication systems • Point-of-sale terminals • Computer terminals • Instrumentation. 3 GENERAL DESCRIPTION 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 (I2C-bus). Communication overheads are minimized by a display RAM with auto-incremented addressing and display bank switching. 4 ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION PCF8578T VSO56 plastic very small outline package; 56 leads SOT190-1 PCF8578U/2 − chip with bumps in tray − PCF8578H LQFP64 plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm SOT314-2 |
Similar Part No. - PCF8578 |
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Similar Description - PCF8578 |
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