PCF85162 データシートの表示（PDF） - NXP Semiconductors.

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PCF85162

Universal LCD driver for low multiplex rates

NXP Semiconductors. 

PCF85162

Universal LCD driver for low multiplex rates

Rev. 3 — 16 June 2011

Product data sheet

1. General description

The PCF85162 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 32 segments. It can be easily

cascaded for larger LCD applications. The PCF85162 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

 Single chip LCD controller and driver

 Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing

 Selectable display bias configuration: static, 1⁄2, or 1⁄3

 Internal LCD bias generation with voltage-follower buffers

 32 segment drives:

 Up to sixteen 7-segment numeric characters

 Up to eight 14-segment alphanumeric characters

 Any graphics of up to 128 elements

 32  4-bit RAM for display data storage

 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 guest-host LCDs and high-threshold twisted nematic LCDs

 Low power consumption

 400 kHz I2C-bus interface

 No external components required

 Manufactured in silicon gate CMOS process

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

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