PCA8547BHT/AY

Display Drivers Overview

The PCA8547BHT/AY is an automotive-grade LCD segment driver manufactured by NXP Semiconductors, housed in a TQFP-64 package. It supports up to 14 segments and 22 digits with a maximum clock frequency of 400 kHz. The device operates on a power supply voltage ranging from 1.8 V to 5.5 V, with a maximum supply current of 90 uA and power dissipation of 400 mW. It functions within a temperature range of -40°C to +95°C and complies with AEC-Q100 standards for automotive electronics.

Display Drivers Feature Summary

• Complies with AEC-Q100 Grade 3 qualification for automotive electronic applications
• Integrates display RAM to minimize communication overhead via automatic increment addressing
• Supports flexible multiplexing configurations with four backplanes and selectable display bias options
• Features low power consumption suitable for battery-operated or energy-efficient systems

Display Drivers Applications

• Automotive instrument cluster displays
• Car radio interface panels
• HVAC control system indicators

Display Drivers Procurement Notes

Verify the specific suffix HT/AY against the official datasheet to confirm pinout and packaging details. Confirm availability status as distribution channels may list obsolete or limited stock items. Ensure compatibility with existing PCB footprints and design-in requirements before finalizing procurement decisions.

Display Drivers Selection Notes

Select this component when designing automotive displays requiring I2C connectivity and high reliability. Compare against the PCA8546 series if SPI interface or different segment counts are preferred. Evaluate power budget constraints against the specified 90 uA maximum current draw and thermal dissipation limits.

Display Drivers Part Context

This part belongs to the PCA854x family of peripheral LCD drivers designed for multiplexed displays. It serves as a dedicated controller generating drive signals for liquid crystal elements. The family targets embedded designs needing robust, low-power display management in harsh environments.

Display Drivers Replacement Considerations

NXP recommends using PCF8553DTT/A or PCA85276ATT/A for new designs. Verify form, fit, and function compatibility before substituting. Check for any changes in interface protocols or pin assignments during migration.