PCF85134HL/1,118

Display Drivers Overview

The PCF85134HL/1,118 is an automotive-grade LCD segment driver designed for low multiplex rates. It supports configurations such as 36x4 and 40x4 segments. The device integrates a programmable internal boost circuit to generate the required LCD voltage, eliminating external components. It communicates with microprocessors via a two-wire I²C-bus interface. The component features display RAM for data storage and offers software-programmable temperature compensation to ensure stable contrast across operating temperatures.

Display Drivers Feature Summary

• Automotive-qualified LCD segment driver optimized for low multiplex applications
• Integrated programmable boost circuit generates on-chip LCD driving voltage
• I²C-bus interface enables efficient communication with host microcontrollers
• Software-programmable temperature compensation maintains consistent display contrast

Display Drivers Applications

• Automotive instrument clusters
• Vehicle information displays
• Dashboard control panels
• Infotainment system interfaces

Display Drivers Procurement Notes

Verify the specific revision level and package variant when sourcing. Confirm that the ordering suffix matches the required multiplex configuration and pinout. Ensure compatibility with the target vehicle's environmental standards and supply chain requirements before finalizing procurement.

Display Drivers Selection Notes

Select this component for designs requiring robust LCD driving in automotive environments. Consider the supported segment count and multiplex rate against the display module specifications. Evaluate the I²C interface constraints and memory requirements relative to the host processor capabilities.

Display Drivers Part Context

This part belongs to NXP's portfolio of universal and automotive LCD drivers. It complements other segment drivers by offering specialized automotive qualification and integrated power management features suitable for harsh operating conditions found in modern vehicles.

Display Drivers Replacement Considerations

PCF85132U/2DA/1 is suitable for industrial applications. PCA85132U/2DA/Q1 is designated for automotive use. Verify electrical and mechanical compatibility before substitution.

Display Drivers FAQ

Does the PCF85134HL require external capacitors for the boost circuit?

No, the device integrates the boost circuit and requires only the necessary capacitors connected directly to the specified pins, eliminating the need for additional external components.

How is display contrast stabilized across different temperatures?

Contrast is stabilized through software-programmable temperature compensation, which adjusts the LCD voltage based on readings from an integrated temperature sensor.