PCA85176T/Q900/1,1

Display Drivers Overview

The PCA85176T/Q900/1,1 is an AEC-Q100 compliant single-chip LCD controller and driver designed for automotive applications. It supports selectable backplane multiplexing (static, 2, 3, or 4) and display bias configurations (static, 1/2, or 1/3). The device features 40 segment drives capable of supporting up to 20 7-segment numeric characters, 10 14-segment alphanumeric characters, or graphics with up to 160 segments. It includes 40 x 4-bit RAM for display data storage and versatile blinking modes. The component operates on a wide power supply range from 1.8 V to 5.5 V and supports logic LCD supplies from 2.5 V to 8.0 V. It utilizes a 400 kHz I2C-bus interface and functions within an extended temperature range up to 95 °C.

Display Drivers Feature Summary

• AEC-Q100 compliance for automotive reliability
• Integrated internal LCD bias generation with voltage-follower buffers
• Supports static, 2, 3, or 4 backplane multiplexing configurations
• Versatile blinking modes and independent LCD/logic supply options

Display Drivers Applications

• Automotive instrument clusters
• Dashboard displays
• Infotainment system interfaces
• Low multiplex rate LCD segments in vehicles

Display Drivers Procurement Notes

Verify the specific ordering suffix matches the required package and tape/reel configuration. Confirm that the Q900 designation aligns with the intended automotive qualification standards. Ensure the selected variant supports the necessary voltage levels for both logic and LCD operations. Cross-reference the datasheet for any recent updates regarding pin compatibility or recommended operating conditions before finalizing procurement.

Display Drivers Selection Notes

Select this component when an AEC-Q100 qualified LCD driver is required for automotive environments. It is suitable for designs needing flexible multiplexing options and high segment counts up to 160 elements. Consider its wide supply voltage range if the system requires operation across varying power conditions. The integrated bias generation simplifies external circuit design compared to solutions requiring separate bias generators.

Display Drivers Part Context

This part belongs to NXP's family of I2C-bus LCD segment drivers tailored for automotive use. It integrates control logic and drive capabilities into a single chip, reducing board space and complexity. The device is designed to handle various display types, including numeric, alphanumeric, and graphic segments, making it versatile for different dashboard and control panel applications.

Display Drivers Replacement Considerations

Check for direct substitutes within the PCA851xx series that offer similar segment counts and multiplexing support. Verify that alternative parts meet the same AEC-Q100 automotive qualification requirements. Ensure pinout compatibility and software register mapping are identical to avoid redesign efforts.