71M6542GT-IGT/F

Overview

The 71M6542GT-IGT/F is a fourth-generation single-phase metering System on Chip (SoC) from 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 or four analog inputs, precision voltage reference, and a 32-bit computation engine. It operates on a 3V to 3.6V supply within a -40°C to +85°C range. The component is housed in a 100-LQFP package.

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 for high-precision measurement
• Includes a low-power real-time clock with digital temperature compensation
• Features a 32-bit computation engine supporting wide-ranging metering applications

Applications

• Residential electricity meters
• Smart grid metering systems
• Single-phase energy monitoring devices

Procurement Notes

Verify the specific suffix 'GT' against official documentation to confirm tape-and-reel packaging status, as standard datasheets may list 'G'. Confirm current product lifecycle status, as this series is often marked obsolete or discontinued by distributors. Ensure compatibility with required isolation sensors if BOM reduction is a design goal.

Selection Notes

Select this SoC for designs requiring integrated processing and metering functions to minimize external components. The 22-bit ADC resolution supports high accuracy over wide dynamic ranges. Consider the available flash memory size and RAM capacity for application firmware requirements. Verify that the 100-pin LQFP package fits the target PCB layout constraints.

Part Context

This component belongs to the Teridian 71M6x01 family of fourth-generation single-phase metering SoCs. It shares architectural similarities with models like the 71M6541 and 71M6542 variants, differing primarily in package type and specific integration features. The family is designed to meet ANSI and IEC electricity metering standards globally.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.