71M6541GT-IGT/F

Overview

The 71M6541GT-IGT/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. It operates on a 3.3V supply within an industrial temperature range of -40°C to +85°C. The component is housed in a 100-pin LQFP package.

Feature Summary

• Integrates a 5MHz 8051-compatible microprocessor core with flash memory and an LCD driver for standalone operation
• Employs Single Converter Technology with a 22-bit delta-sigma ADC and a 32-bit computation engine for high-precision metering
• Includes a low-power real-time clock with digital temperature compensation for accurate timekeeping
• Supports optional interfaces to isolated sensors to reduce bill of materials cost and enhance reliability

Applications

• Residential single-phase electricity meters
• Smart grid metering infrastructure
• Prepaid energy metering systems

Procurement Notes

Verify the specific suffix 'GT' against official Analog Devices documentation to confirm tape-and-reel packaging and exact memory configuration. Confirm that the 'IGT' designation aligns with the intended lead-free LQFP-100 package requirements. Cross-reference the part number with current Analog Devices catalogs as Maxim Integrated products are managed under ADI channels post-acquisition.

Selection Notes

Select this SoC for applications requiring high integration and minimal external components. The device supports ANSI and IEC standards compliance through its advanced processing capabilities. Ensure the design accommodates the 100-pin LQFP footprint and utilizes the available SPI interface for programming. Evaluate the 32/64KB flash options if field programmability is required for code or data updates during meter operation.

Part Context

This component belongs to the Teridian 71M6x01 series of fourth-generation single-phase metering SoCs. The series includes variants such as the 71M6541D, 71M6541F, 71M6541G, 71M6542F, and 71M6542G. These devices share a common architecture based on Single Converter Technology but differ in pin counts, memory sizes, and package types to suit various metering form factors.

Replacement Considerations

Consult Analog Devices documentation for direct substitutes within the 71M6541 series, such as the 71M6541G-IGT/F or 71M6541FT. Verify compatibility regarding flash memory capacity and package dimensions before substitution.