PCA85276ATT/AY

Display Drivers Overview

The PCA85276ATT/AY is an automotive-grade LCD segment driver designed for high-reliability applications. It supports up to 160 display elements with a maximum multiplex rate of 1:4. The device features a 40x4 bit display RAM and communicates via a standard I²C bus interface operating at 400 kHz. It operates within a digital supply voltage range of 1.8 V to 5.5 V and supports LCD supply voltages from 2.5 V to 9 V. The component meets AEC-Q100 Grade 3 standards and functions reliably across a temperature range of -40°C to +105°C.

Display Drivers Feature Summary

• Automotive-grade reliability compliant with AEC-Q100 Grade 3 standards
• Integrated 40x4 bit display RAM minimizes communication overhead
• Supports flexible bias configurations for various LCD types
• Standard I²C interface simplifies integration with microcontrollers

Display Drivers Applications

• Automotive instrument clusters
• Vehicle center information displays
• Industrial control panels requiring high reliability

Display Drivers Procurement Notes

Verify the specific suffix ATT/AY against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure the design accounts for the required I²C pull-up resistors and decoupling capacitors as detailed in the official application guidelines. Confirm that the target LCD module matches the supported element count and multiplexing ratios.

Display Drivers Selection Notes

Select this component when designing systems requiring strict automotive qualification and wide temperature operation. It is suitable for applications needing to drive complex alphanumeric or graphic segments without excessive MCU GPIO usage. Consider alternatives only if higher element counts or different interface protocols are strictly required by the system architecture.

Display Drivers Part Context

This part belongs to NXP’s family of automotive LCD segment drivers, engineered to replace direct MCU driving methods. It offloads timing and waveform generation tasks, allowing the main processor to focus on application logic. The series is characterized by low power consumption and robust electromagnetic compatibility suitable for harsh automotive environments.

Display Drivers Replacement Considerations

NXP recommends using PCF8553DTT/A or PCA85276ATT/A for new designs. Verify pinout and register compatibility before substituting.