PCF8537BH/1,518

Display Drivers Overview

The PCF8537BH/1,518 is an industrial-grade LCD driver designed for multiplex rates up to 1:8. It supports static or multiplexed displays with up to eight backplanes, 46 segments, and 352 elements. The device features a software-programmable internal charge pump generating up to 9 V using integrated capacitors. It connects via a three-line bidirectional SPI bus operating at 5 MHz. Digital power supply ranges from 1.8 V to 5.5 V, while the LCD supply ranges from 2.5 V to 9.0 V. It includes programmable temperature compensation in four regions, a 352-bit RAM display buffer, and an integrated temperature sensor.

Display Drivers Feature Summary

• Supports high-contrast vertical alignment LCDs with selectable backplane configurations
• Integrates a charge pump with internal capacitors for on-chip voltage generation
• Provides programmable temperature compensation for stable contrast across temperatures
• Includes an integrated temperature sensor with readout capability

Display Drivers Applications

• White home appliances
• Handheld electronic devices
• Battery-powered equipment

Display Drivers Procurement Notes

Verify the specific suffix 'BH' confirms the SPI interface variant rather than I2C. Confirm the '/1,518' designation matches the required TQFP-64 reel packaging format. Ensure the component meets the specified industrial temperature range of -40°C to +85°C for your application environment.

Display Drivers Selection Notes

Select this model when a microcontroller requires a three-line bidirectional SPI interface instead of I2C. It is suitable for designs needing up to 352 display elements with high contrast requirements. Consider the wide digital supply range if system power varies between 1.8 V and 5.5 V.

Display Drivers Part Context

This part belongs to the PCF8537 family of low-power single-chip LCD controllers. It is the industrial version of the PCA8537 automotive driver. The BH suffix distinguishes it from the AH variant by providing a 5 MHz SPI interface instead of a 400 kHz I2C bus.

Display Drivers Replacement Considerations

PCF8537AH/1,518 (I2C interface only)

Display Drivers FAQ

Does the PCF8537BH require external capacitors for the charge pump?

No, the PCF8537BH features an internal charge pump that utilizes integrated on-chip capacitors, eliminating the need for external components.

What is the maximum number of alphanumeric characters this driver can support?

It can drive up to 44 seven-segment alphanumeric characters or up to 22 fourteen-segment alphanumeric characters.