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PCF8576D_11 Datasheet, PDF (1/50 Pages) NXP Semiconductors – Universal LCD driver for low multiplex rates | |||
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PCF8576D
Universal LCD driver for low multiplex rates
Rev. 10 â 14 February 2011
Product data sheet
1. General description
The PCF8576D 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 40 segments. It can be easily
cascaded for larger LCD applications. The PCF8576D 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).
2. Features and benefits
 AEC-Q100 compliant (PCF8576DT/S400/2) for automotive applications
 Single chip LCD controller and driver
 Selectable backplane drive configuration: static or 2, 3, 4 backplane multiplexing
 Selectable display bias configuration: static, 1â2 or 1â3
 Internal LCD bias generation with voltage-follower buffers
 40 segment drives:
 Up to 20 7-segment numeric characters
 Up to 10 14-segment alphanumeric characters
 Any graphics of up to 160 elements
 40 à 4-bit RAM for display data storage
 Auto-incremented display data loading across device subaddress boundaries
 Display memory bank switching in static and duplex drive modes
 Versatile blinking modes
 Independent supplies possible for LCD and logic voltages
 Wide power supply range: from 1.8 V to 5.5 V
 Wide logic LCD supply range:
 From 2.5 V for low-threshold LCDs
 Up to 6.5 V for high-threshold twisted nematic LCDs
 Low power consumption
 400 kHz I2C-bus interface
 May be cascaded for large LCD applications (up to 2560 elements possible)
 No external components required
 Compatible with chip-on-glass and chip-on-board technology
 Manufactured in silicon gate CMOS process
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