71M6531D-IMR/F

Overview

The 71M6531D-IMR/F is a highly integrated System on Chip (SoC) designed for single-phase and dual-phase energy metering applications. It incorporates Single Converter Technology® to achieve high accuracy with minimal external components. The device integrates an MPU core, real-time clock (RTC), flash memory, and an LCD driver. Packaged in a 68-pin QFN (8x8 mm) format, it supports advanced power management functions including voltage sequencing.

Feature Summary

• Integrates Single Converter Technology® for simplified design and high measurement accuracy
• Combines MPU core, RTC, flash memory, and LCD driver into a single SoC
• Supports both single-phase and dual-phase energy metering configurations

Applications

• Single-phase residential energy meters
• Dual-phase commercial energy metering systems
• Smart grid endpoint devices requiring integrated display drivers

Procurement Notes

Verify the specific suffix IMR/F against the official Analog Devices datasheet to confirm package type and temperature range. Ensure compatibility with existing firmware libraries provided by ADI for the 71M65xx series. Confirm that the 68-QFN footprint matches the PCB layout requirements before ordering.

Selection Notes

Select this component when a compact solution integrating processing, storage, and analog front-end is required. It is suitable for designs needing built-in LCD driving capabilities without external controllers. Consider the 68-pin QFN package constraints for thermal management and assembly processes compared to larger packages.

Part Context

This part belongs to the Maxim Integrated 71M65xx family of energy metering ICs, now managed by Analog Devices following the acquisition. The 71M6531 variant specifically targets cost-sensitive yet high-performance metering applications where integration reduces bill-of-materials count.

Replacement Considerations

Check Analog Devices documentation for direct pin-compatible upgrades within the 71M65xx series, such as the 71M6532, which may offer additional features or improved specifications while maintaining software compatibility.