PCF8576CT/1,112

The PCF8576CT/1,112 is a single-chip LCD controller and driver designed by NXP Semiconductors for low multiplex rate applications. It interfaces with Liquid Crystal Displays (LCDs) and generates the necessary drive signals for static or multiplexed displays containing up to four backplanes and 40 segments. This device is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus.

Key features include 40 segment drives, capable of supporting up to twenty 7-segment alphanumeric characters, ten 14-segment alphanumeric characters, or any graphics of up to 160 elements. It offers versatile blinking modes and requires no external components. The backplane drive configuration is selectable (static, 2, 3, or 4 backplane multiplexing), as is the display bias configuration (static, 1/2, or 1/3). The device has an internal LCD bias generation with voltage-follower buffers and 40x4-bit RAM for display data storage.

The PCF8576CT/1,112 operates with a wide logic LCD supply range from 2V to 6V, making it suitable for low-threshold and high-threshold twisted nematic LCDs. It consumes low power and features a power-saving mode for battery-operated devices. The device can be cascaded for larger LCD applications, potentially supporting up to 2560 elements. It is supplied in a 56-VSO package and is designed for surface mounting.

This LCD driver is suitable for various applications requiring display control, such as in portable electronics, telephones, and other devices with LCD interfaces. Its integrated features and flexible configuration options simplify design and reduce component count.