PCF8545ATT/AJ

Display Drivers Overview

The PCF8545ATT/AJ is a real-time clock and LCD segment driver integrated circuit manufactured by NXP Semiconductors. It combines an RTC function with an SPI interface for an 8x40 LCD segment driver, supporting multiplex rates up to 1:8. The device is housed in a TSSOP56 package. This component is designed for applications requiring precise timekeeping alongside display driving capabilities within a single compact solution.

Display Drivers Feature Summary

• Integrated real-time clock functionality
• SPI interface for LCD segment driving
• Supports multiplex rates up to 1:8

Display Drivers Applications

• Devices requiring combined timekeeping and display functions
• Embedded systems with limited pin count constraints
• Consumer electronics with LCD segments

Display Drivers Procurement Notes

Verify the specific suffix (AJ) against official documentation to confirm exact electrical characteristics and availability status. Check for end-of-life notifications or alternative part recommendations from NXP. Ensure compatibility with existing system voltage levels and SPI protocols before integration.

Display Drivers Selection Notes

Select this component when a single IC must handle both RTC and LCD driving tasks. Consider the TSSOP56 package size and SPI interface requirements. Evaluate if the 1:8 multiplexing capability meets the display complexity needs of the target application.

Display Drivers Part Context

This part belongs to NXP's family of mixed-signal controllers that integrate timing and display drivers. It is distinct from pure RTCs or pure LCD drivers, offering a consolidated solution for space-constrained designs.

Display Drivers Replacement Considerations

Consult NXP's official obsolescence notices for direct substitutes. Verify form, fit, and function compatibility with any proposed replacement components.