PCF8576CHL/1,157

Overview

The PCF8576CHL/1,157 is a single-chip LCD controller and driver manufactured by NXP Semiconductors. It interfaces with Liquid Crystal Displays via a two-line bidirectional I2C-bus. The device supports static or multiplexed LCDs containing up to four backplanes and 40 segments. It includes 40x4-bit RAM for display data storage with auto-incremented addressing. The component operates within a temperature range of -40 °C to 85 °C and utilizes a 64-pin LQFP plastic package.

Feature Summary

• Generates drive signals for static or multiplexed LCDs with up to four backplanes and 40 segments
• Communicates via a two-line bidirectional I2C-bus compatible with most microcontrollers
• Minimizes communication overhead through display RAM with auto-incremented addressing and hardware subaddressing
• Supports selectable backplane drive configurations including static, 2-backplane, 3-backplane, and 4-backplane multiplexing

Applications

• Low multiplex rate liquid crystal displays
• Microcontroller-based display systems
• Consumer electronics requiring segment or dot matrix displays

Procurement Notes

Verify the specific suffix '1,157' against official NXP documentation to confirm exact packaging orientation and reel specifications. Ensure compatibility with the target I2C bus voltage levels and logic thresholds. Confirm that the 64-pin LQFP package dimensions match the PCB footprint requirements. Check for any RoHS compliance certificates associated with this specific ordering code.

Selection Notes

Select this component for applications requiring low-power LCD driving with minimal microcontroller interface overhead. It is suitable for designs needing support for up to 40 segments and four backplanes. Consider its I2C interface for simplified wiring compared to parallel interfaces. Evaluate the operating temperature range to ensure it meets the environmental requirements of the final product.

Part Context

The PCF8576 series serves as a universal LCD driver for low multiplex rates. It functions as a peripheral device that generates drive signals for various LCD types. The family allows for cascading to support larger display applications. It is designed to be compatible with standard microprocessors and microcontrollers through its I2C interface.

Replacement Considerations

PCF8576CHL/1,118 is a documented variant within the same series.