PCA85133 Datasheet, PDF(1/44 Page) NXP Semiconductors – Universal LCD driver for low multiplex rates

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PCA85133 Datasheet, PDF (1/44 Pages) NXP Semiconductors – Universal LCD driver for low multiplex rates

PCA85133

Universal LCD driver for low multiplex rates

Rev. 1 â 23 October 2009

Product data sheet

1. General description

The PCA85133 is a peripheral device which interfaces to almost any Liquid Crystal

Display (LCD)1 with low multiplex rates. It generates the drive signals for any static or

multiplexed LCD containing up to four backplanes and up to 80 segments and can easily

be cascaded for larger LCD applications. The PCA85133 is compatible with most

microprocessors or microcontrollers and communicates via a two-line bidirectional

I2C-bus. Communication overheads are minimized by a display RAM with

auto-incremental addressing, by hardware subaddressing, and by display memory

switching (static and duplex drive modes).

AEC-Q100 compliant for automotive applications.

2. Features

I Single-chip LCD controller and driver

I Selectable backplane drive conï¬guration: static, 2, 3, or 4 backplane multiplexing

I Selectable display bias conï¬guration: static, 1â2, or 1â3

I Selectable frame frequency: 82 Hz or 110 Hz

I Internal LCD bias generation with voltage-follower buffers

I 80 segment drives:

N Up to 40 7-segment alphanumeric characters

N Up to 21 14-segment alphanumeric characters

N Any graphics of up to 320 elements

I 80 Ã 4 bit RAM for display data storage

I Auto-incremental display data loading across device subaddress boundaries

I Display memory bank switching in static and duplex drive modes

I Versatile blinking modes

I Independent supplies possible for LCD and logic voltages

I Wide power supply range: from 1.8 V to 5.5 V

I Wide LCD supply range for low-threshold LCDs, for guest-host LCDs, and

high-threshold (automobile) twisted nematic LCDs: from 2.5 V to 8.0 V

I Low power consumption

I 400 kHz I2C-bus interface

I Compatible with 4-bit, 8-bit, or 16-bit microprocessors or microcontrollers

I May be cascaded for large LCD applications (up to 5120 segments possible)

I No external components needed

I Compatible with Chip-On-Glass (COG) technology

1. The deï¬nition of the abbreviations and acronyms used in this data sheet can be found in Section 17.

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