PCA8546BTT/AY

Display Drivers Overview

The PCA8546BTT/AY is an automotive-grade LCD segment driver manufactured by NXP Semiconductors. It supports up to 176 segments with a maximum clock frequency of 5 MHz and operates within a supply voltage range of 1.8 V to 5.5 V. The device features a TSSOP-56 package, consumes a maximum power dissipation of 400 mW, and functions between -40 °C and +95 °C. It utilizes SPI communication and meets AEC-Q100 standards for automotive applications.

Display Drivers Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 3 standards
• Integrated on-chip RAM for display data storage
• Supports flexible multiplex rates up to 1:8
• Wide operating temperature range suitable for harsh environments

Display Drivers Applications

• Automotive air conditioning system displays
• Car radio interface panels
• Vehicle instrument cluster indicators

Display Drivers Procurement Notes

Verify the specific suffix 'AY' against official documentation to confirm package orientation and tape-and-reel specifications. Confirm current lifecycle status as the component may be discontinued or subject to product change notifications. Ensure compatibility with existing PCB footprints and SPI bus configurations before procurement.

Display Drivers Selection Notes

Select this component when designing automotive displays requiring high segment counts and robust environmental tolerance. It is suitable for systems needing SPI connectivity and low power consumption. Consider form-factor constraints due to the TSSOP-56 package and verify thermal management requirements for the specified power dissipation limits in enclosed assemblies.

Display Drivers Part Context

This part belongs to the PCA854x family of LCD segment drivers designed for automotive electronics. It serves as a specialized controller for multiplexed LCDs, offering dedicated hardware support for complex alphanumeric and graphical displays. The series emphasizes reliability and integration for vehicle interior user interfaces.

Display Drivers Replacement Considerations

NXP recommends using PCF8553DTT/A or PCA85276ATT for new designs. Verify pinout and functional compatibility if migrating from legacy inventory.