PCF8576CT/1,518

Overview

The PCF8576CT/1,518 is a single-chip LCD controller and driver designed for low multiplex rate applications. It interfaces with Liquid Crystal Displays containing up to four backplanes and 40 segments via a two-line bidirectional I2C-bus. The device features internal LCD bias generation with voltage-follower buffers and supports selectable display bias configurations of static, 1/2, or 1/3. It includes 40 x 4-bit RAM for display data storage with auto-incremented addressing. The component operates within a wide power supply range from 2 V to 9 V and offers versatile blinking modes.

Feature Summary

• Single-chip LCD controller and driver supporting up to 40 segment drives
• Two-line bidirectional I2C-bus interface for microcontroller communication
• Internal LCD bias generation with voltage-follower buffers
• Display memory bank switching in static and duplex drive modes

Applications

• Battery-operated telephone systems
• Low multiplex rate liquid crystal displays
• Microprocessor peripheral display control

Procurement Notes

Verify the specific suffix /1,518 against official NXP documentation to confirm package type and tape-and-reel specifications. Ensure the ordering code matches the required TSSOP56 configuration. Cross-reference the manufacturer part number with current datasheets to validate availability and revision status before procurement.

Selection Notes

Select this component for designs requiring a dedicated LCD driver with minimal external components. It is suitable for applications needing separation of logic and LCD supplies. Consider its I2C compatibility and low power consumption features when designing battery-powered or space-constrained systems requiring simple serial control of segment displays.

Part Context

This part belongs to the PCF8576 family of universal LCD drivers manufactured by NXP Semiconductors. The series provides integrated solutions for driving static and multiplexed LCDs. Variants within the family differ primarily in packaging options such as SSOP, TSSOP, and LQFP, while maintaining identical core electrical functionality and interface protocols.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.