71M6543GHT-IGTR/F

Overview

The 71M6543GHT-IGTR/F is a three-phase energy metering System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It features an integrated 80515 core with 128 kB program memory and 5 kB data RAM. The device includes a high-resolution 22-bit ADC and supports a maximum clock frequency of 5 MHz. Packaged in a 100-LQFP, it operates within a supply voltage range of 3 V to 3.6 V and functions across temperatures from -40°C to +85°C.

Feature Summary

• Integrates a dedicated 80515 processor core for efficient metering logic execution
• Provides high-precision measurement capabilities via a 22-bit analog-to-digital converter
• Combines significant onboard flash program memory and static RAM for complex algorithm storage

Applications

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

Procurement Notes

Verify the specific suffix 'GHT' against official Analog Devices documentation to confirm pinout compatibility and thermal characteristics. Ensure the LQFP-100 package dimensions align with PCB footprint requirements. Confirm that the 5 MHz clock speed meets the timing constraints of the target application's communication interfaces.

Selection Notes

Select this component when three-phase measurement accuracy is required alongside embedded processing capabilities. The 22-bit ADC resolution distinguishes it from lower-resolution alternatives. Consider the 128 kB memory capacity for applications requiring extensive local data logging or complex tariff structures without external memory dependencies.

Part Context

This part belongs to the Maxim Integrated metering SoC family, designed for standalone energy measurement. It integrates analog front-end signal conditioning with digital processing, eliminating the need for separate microcontrollers in basic metering designs. The Single Converter Technology architecture ensures high linearity and low noise performance across the operating temperature range.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.