71M6521FE-IGTR/F

Overview

The 71M6521FE-IGTR/F is a single-phase metering System on Chip (SoC) from the Teridian 71M6x01 series, manufactured by Analog Devices Inc. (Maxim Integrated). It integrates a 5MHz 8051-compatible MPU core with low-power RTC and LCD driver capabilities. The device features Single Converter Technology with a 22-bit delta-sigma ADC, three analog inputs, digital temperature compensation, a precision voltage reference, and a 32-bit computation engine. It operates at 3.3V in an LQFP-100 package, supporting I2C and UART interfaces.

Feature Summary

• Integrates a 5MHz 8051-compatible microprocessor unit with flash memory and an LCD driver for standalone operation.
• Utilizes Single Converter Technology featuring a 22-bit delta-sigma ADC for high-precision energy measurement.
• Includes a 32-bit computation engine and digital temperature compensation to ensure accuracy across operating conditions.

Applications

• Residential electricity meters
• Smart grid metering systems
• Prepaid metering applications

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or Maxim Integrated channels. Confirm RoHS compliance status as indicated in official datasheets. Check current availability as supply may be limited. Ensure the specific suffix matches design requirements. Validate package integrity upon receipt.

Selection Notes

Select this SoC for designs requiring integrated metering processing without external MCU dependency. Consider the 22-bit ADC resolution for high-accuracy requirements. Evaluate the 5MHz clock speed against processing needs. Verify interface compatibility with existing communication protocols. Assess thermal performance within the specified operating temperature range.

Part Context

This component belongs to the Teridian 71M6x01 family of fourth-generation single-phase metering SoCs. These devices are designed to reduce bill of materials cost while maintaining high performance. The family supports various isolation techniques and sensor interfaces for enhanced reliability and tamper immunity in utility applications.

Replacement Considerations

Consult official documentation for direct substitutes within the 71M654x series. Verify pinout and register compatibility before substitution. Ensure equivalent ADC resolution and processor core architecture. Confirm package dimensions match the existing footprint.