71M6545T-IGT/F

Overview

The 71M6545T-IGT/F is a single-phase metering System on Chip (SoC) manufactured by Analog Devices Inc./Maxim Integrated. It integrates an 8051-compatible MPU core with a maximum clock frequency of 5 MHz, 64 KB of program memory, and 5 KB of data RAM. The device features a 22-bit delta-sigma ADC and supports I2C and UART interfaces. Operating at 3.3 V, it is housed in an LQFP-64 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an 8051-compatible microprocessor core for efficient data processing
• Includes a high-resolution 22-bit delta-sigma analog-to-digital converter
• Provides flexible communication via I2C and UART serial interfaces

Applications

• Single-phase residential electricity metering systems
• Smart grid energy monitoring devices
• Embedded power measurement modules requiring low component count

Procurement Notes

Verify the exact suffix and manufacturer designation when sourcing, as supply chain records may list this part under Silergy or Maxim Integrated due to corporate acquisitions. Confirm RoHS compliance status and check for obsolete status indicators, as availability may be restricted. Ensure the specific package variant matches your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring integrated metering capabilities without external ADCs. The 64 KB flash memory supports complex firmware updates. Compare against the 71M6542 series if higher pin counts or different memory configurations are needed. Ensure the 3.3 V operating voltage aligns with the target system's power rails and that the LQFP-64 package fits the mechanical constraints.

Part Context

This device belongs to the 71M6x01 family of fourth-generation single-phase metering SoCs. These chips utilize Single Converter Technology to reduce bill-of-materials costs while maintaining high accuracy. The family typically includes variants like the 71M6541 and 71M6542, offering scalable memory and interface options for various utility metering standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official distributor databases for cross-references or contact the manufacturer for recommended alternatives.