71M6541F-IGTR/F

Overview

The 71M6541F-IGTR/F is a fourth-generation single-phase metering System-on-Chip (SoC) manufactured by Analog Devices Inc./Maxim Integrated. It integrates a 5 MHz 8051-compatible MPU core, a 22-bit delta-sigma ADC, and a 32-bit computation engine. The device features 64 kB of Flash program memory and 3 kB of shared RAM. It operates on a 3.3 V supply within an industrial temperature range of -40°C to +85°C. Packaged in a 100-LQFP, it supports I2C and UART interfaces for communication.

Feature Summary

• Integrates Single Converter Technology with a 22-bit delta-sigma ADC and precision voltage reference
• Includes a low-power real-time clock with digital temperature compensation
• Supports field-programmable flash memory for code and data updates during operation
• Features an LCD driver capable of driving up to six segments per pin

Applications

• Residential electricity meters
• Smart grid metering systems
• Prepaid energy metering applications
• ANSI and IEC compliant metering devices

Procurement Notes

Verify component authenticity through authorized Analog Devices channels due to the historical acquisition of Maxim Integrated. Confirm current availability status as distribution may vary. Ensure design compliance with relevant electrical standards prior to integration. Consult official documentation for updated lifecycle information and support resources.

Selection Notes

Select this SoC for single-phase metering designs requiring high accuracy and low external component count. The integrated 8051 core simplifies firmware development compared to separate MCU and metering IC solutions. Consider the 64 kB Flash capacity for complex application requirements. Verify interface compatibility with target communication modules.

Part Context

This component belongs to the Teridian 71M6x01 series of fourth-generation metering SoCs. Originally developed by Maxim Integrated, the product line is now supported by Analog Devices following their acquisition. The series utilizes Single Converter Technology to reduce bill-of-materials costs while maintaining metrological performance suitable for global utility standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices technical support for potential cross-reference options or next-generation replacements.