71M6545T-IGTR/F

Overview

The 71M6545T-IGTR/F is a three-phase metering System on Chip (SoC) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates an 80515 user MPU core with a maximum clock frequency of 5 MHz, 64 kB of Flash program memory, and 5 kB of data RAM. The device features a 22-bit ADC resolution and supports 39 I/O pins within an LQFP-64 package. Operating at 3.3 V, it includes I2C and UART interfaces, two timers/counters, and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 22-bit delta-sigma ADC for high-precision energy measurement
• Includes an 80515-compatible microprocessor unit for local control
• Supports multiple current sensor types including CT, shunt, and Rogowski coils
• Features digital temperature compensation for accuracy stability

Applications

• Three-phase electricity metering systems
• Smart grid infrastructure monitoring
• Industrial power management units

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors due to potential supply constraints. Confirm RoHS compliance status and specific tape-and-reel packaging requirements before ordering. Ensure design compatibility with the LQFP-64 footprint and 3.3V logic levels. Request latest datasheets to validate pin configurations and thermal specifications for your specific application environment.

Selection Notes

Select this SoC for applications requiring integrated three-phase metrology without external isolation barriers. The 80515 core provides sufficient processing for tariff calculations and communication protocols. Consider the 22-bit ADC resolution for high-accuracy requirements. Evaluate the 64 kB Flash capacity against firmware size needs. Verify interface availability for system integration.

Part Context

This component belongs to the 71M65xx series of precision energy metering ICs from Maxim Integrated, now part of Analog Devices. These devices utilize Single Converter Technology® to reduce bill-of-materials costs while maintaining performance. The series targets single and three-phase metering applications, offering integrated computation engines and low-power real-time clocks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for cross-reference recommendations based on specific electrical and mechanical requirements.