71M6531D-IM/F

Overview

The 71M6531D-IM/F is a fourth-generation single-phase metering System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It integrates a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and an LCD driver. The device utilizes Single Converter Technology featuring a 22-bit Delta-Sigma ADC, three analog inputs, a precision voltage reference, and a 32-bit computation engine. Designed for residential electricity meters, it supports ANSI and IEC standards with minimal external components.

Feature Summary

• Integrates a 5MHz 8051-compatible microprocessor unit core with flash memory and LCD driver capabilities
• Employs Single Converter Technology with a 22-bit Delta-Sigma ADC and three analog inputs
• Includes a 32-bit computation engine and precision voltage reference for high-accuracy metering
• Features a low-power real-time clock with digital temperature compensation

Applications

• Residential single-phase electricity metering
• Smart grid metering applications requiring ANSI and IEC compliance
• Embedded energy monitoring systems utilizing LCD displays

Procurement Notes

Verify the specific suffix IM/F against official datasheets to confirm package type and temperature range. Confirm current availability status as legacy or discontinued products may have limited supply chains. Ensure compatibility with existing design infrastructure before procurement.

Selection Notes

Select this component for applications requiring integrated metering processing with minimal external circuitry. The built-in 22-bit ADC and computation engine reduce bill of materials complexity. Consider the 8051 core architecture for software development familiarity and available code tools.

Part Context

This part belongs to the Teridian 71M6x01 series of fourth-generation single-phase metering SoCs. These devices are designed to support a wide range of metering applications with very few external components, offering high processing and sampling rates combined with differential inputs for accurate measurement.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for cross-reference information regarding end-of-life management or alternative solutions within the 71M6x01 family.