PCF8566T/1

PCF8566 Universal LCD driver for low multiplex rates Rev. 07 25 February 2009 Product data sheet 1. General description The PCF8566 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 24 segments and can easily be cascaded for larger LCD applications. The PCF8566 is compatible with most microprocessors or 2 microcontrollers and communicates via a two-line bidirectional I C-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 n Single-chip LCD controller/driver n 24 segment drives: u Up to twelve 7-segment numeric characters including decimal pointer u Up to six 14-segment alphanumeric characters u Any graphics of up to 96 elements n Versatile blinking modes n No external components required (even in multiple device applications) n Selectable backplane drive conguration: static or 2, 3, 4 backplane multiplexing 1 1 n Selectable display bias conguration: static, or 2 3 n Internal LCD bias generation with voltage-follower buffers n 24 4-bit RAM for display data storage n Auto-incremented display data loading across device subaddress boundaries n Display memory bank switching in static and duplex drive modes n LCD and logic supplies may be separated n 2.5 V to 6 V power supply range n Low power consumption n Power-saving mode for extremely low power consumption in battery-operated and telephone applications 2 n I C-bus interface n TTL and CMOS compatible n Compatible with any 4, 8 or 16-bit microprocessor or microcontroller n May be cascaded for large LCD applications (up to 1536 segments possible) n Cascadable with 40-segment LCD driver PCF8576C n Optimized pinning for plane wiring in both and multiple PCF8566 applications n Space-saving 40-lead plastic very small outline package (VSO40 SOT158-1) n Manufactured in silicon gate CMOS processPCF8566 NXP Semiconductors Universal LCD driver for low multiplex rates 3. Ordering information Table 1. Ordering information Type number Package Name Description Version PCF8566P DIP40 plastic dual in-line package 40 leads (600 mil) SOT129-1 PCF8566T VSO40 plastic very small outline package 40 leads SOT158-1 1 PCF8566TS VSO40 plastic very small outline package 40 leads SOT158-1 2 PCF8566U PCF8566U wire bond die 40 bonding pads PCF8566U 2.5 2.91 0.381 mm 1 Dark-green version. 2 Chip in tray for chip on board. 4. Marking Table 2. Marking codes Type number Marking code PCF8566P PCF8566P PCF8566T PCF8566T PCF8566TS PCF8566TS PCF8566U PC8566-1 PCF8566 7 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 07 25 February 2009 2 of 48