PCF8553DTT/AY

Display Drivers Overview

The PCF8553DTT/AY is an automotive-grade LCD segment driver designed for multiplexed displays. It integrates a controller and driver for up to 176 elements, supporting configurations such as four backplanes with selectable bias voltages. The device features on-chip RAM for display data storage and communicates via a two-wire I²C bus (PCA8553A variant) or a three-wire SPI bus (PCA8553B variant). It operates within a wide digital power supply range of 1.8V to 5.5V and supports LCD power voltages from 2.5V to 9V. The component meets AEC-Q100 Grade 3 standards and functions reliably across a temperature range up to 95°C.

Display Drivers Feature Summary

• Complies with AEC-Q100 Grade 3 standards for automotive electronic applications
• Integrates a single chip LCD controller and driver with on-chip RAM for display data storage
• Supports flexible communication through either a two-wire bidirectional I²C bus or a three-wire unidirectional SPI bus
• Features low power consumption and separate LCD and logic power supply capabilities

Display Drivers Applications

• Air conditioning systems
• Automotive radios
• Instrument cluster displays

Display Drivers Procurement Notes

Verify the specific suffix (DTT/AY) against the official NXP ordering code list to ensure correct package orientation and reel specifications. Confirm that the design utilizes the recommended replacement parts, PCF8553DTT/A or PCA85276ATT/A, if long-term availability is a primary constraint, as production support for legacy variants may be limited after inventory depletion.

Display Drivers Selection Notes

Select this component when designing automotive interfaces requiring robust LCD driving with minimal microcontroller overhead. The choice between I²C and SPI variants depends on the available serial interface resources on the host controller. Ensure the application requires compliance with AEC-Q100 Grade 3 reliability standards and can accommodate the specified voltage ranges for both logic and LCD segments.

Display Drivers Part Context

The PCF8553 belongs to NXP's portfolio of automotive-grade LCD segment drivers, engineered for high reliability in vehicle environments. It is part of a family that includes similar models like the PCA8546 and PCF8551, offering varying segment counts and interface options. These devices are specifically optimized to reduce communication overhead through automatic increment addressing and integrated display RAM.

Display Drivers Replacement Considerations

NXP recommends using PCF8553DTT/A and PCA85276ATT/A for new designs. The PCA8546ATT and PCA8546BTT will continue to receive production support until inventory is exhausted.