MAX7231CFIQH

Display Drivers Overview

The MAX7231CFIQH is an 8-digit, triplexed LCD decoder driver manufactured by Analog Devices Inc. (Maxim Integrated). It operates on a single 5V supply and is housed in a 44-pin PLCC package. The device drives triplexed LCDs by generating three bias voltages and dynamically switching segment and common lines. It integrates charge pump circuitry for internal voltage generation, eliminating the need for external high-voltage components.

Display Drivers Feature Summary

• Generates three bias voltages for triplexed LCD operation
• Dynamically switches segment and common lines to drive displays
• Integrates charge pump for internal voltage regulation
• Operates from a single 5V power supply

Display Drivers Applications

• Triplexed LCD display systems
• Low-power embedded designs requiring accurate timing sources
• Industrial control panels with LCD interfaces
• Consumer electronics with segmented LCD requirements

Display Drivers Procurement Notes

Verify the specific suffix 'CFIQH' against the manufacturer's current datasheet to confirm pinout and electrical characteristics. Ensure compatibility with existing PCB layout and firmware drivers designed for triplexed LCD architectures. Cross-reference with Analog Devices official documentation for any recent revisions or obsolescence notices before finalizing procurement.

Display Drivers Selection Notes

Select this component when driving triplexed LCDs with up to eight digits and 65 segments. It is suitable for applications requiring integrated charge pump functionality without external high-voltage supplies. Compare with the MAX7232 if lower quiescent current or enhanced charge pump regulation is required for specific power-sensitive designs.

Display Drivers Part Context

This part belongs to the MAX7231 series of LCD drivers. It is functionally similar to the MAX7232 but lacks the enhanced charge pump regulation and lower active mode quiescent current found in the latter. The series is designed for simple, cost-effective triplexed LCD interface solutions in embedded systems.

Display Drivers Replacement Considerations

The MAX7232 is a documented alternative offering identical features with enhanced charge pump regulation and lower quiescent current. Verify pin-to-pin compatibility and software compatibility before substitution.