PCA8576D Datasheet, PDF (1/42 Pages) NXP Semiconductors – Automotive 40 x 4 LCD segment driver for low multiplex rates up to 1:4

PCA8576D
Automotive 40 x 4 LCD segment driver for low multiplex rates
up to 1:4
Rev. 1 — 4 April 2011
Product data sheet
1. General description
The PCA8576D 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 PCA8576D 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 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, ¹ï‚¤₂ or ¹ï‚¤₃
 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  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