71M6543HT-IGTR/F

Overview

The 71M6543HT-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 core processor 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 operates at a supply voltage of 3.3 V. It supports I2C and UART interfaces and is housed in an LQFP-64 package. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a dedicated metrology processor with high-resolution analog-to-digital conversion for precise energy measurement.
• Combines digital processing capabilities with analog sensing inputs to reduce external component count.
• Supports standard communication protocols for system integration and configuration.

Applications

• Three-phase energy metering systems
• Polyphase smart grid infrastructure
• Industrial power monitoring equipment

Procurement Notes

Verify current availability status through official Analog Devices channels, as distribution may be limited or subject to specific ordering constraints. Confirm RoHS compliance and lead times directly with authorized suppliers before finalizing procurement plans. Ensure the specific suffix matches design requirements.

Selection Notes

Select this component for applications requiring integrated three-phase metering with a compact footprint. The LQFP-64 package offers a balance between pin count and board space. Consider the 5 MHz processing speed and 22-bit ADC resolution when evaluating performance needs against alternative SoC options in the 71M65xx series.

Part Context

This part belongs to the 71M65xx family of metering Systems on Chip, originally developed by Teridian Semiconductor and later acquired by Maxim Integrated, now part of Analog Devices. These devices are designed to simplify the design of utility-grade energy meters by integrating the microprocessor, ADC, and reference components onto a single die.

Replacement Considerations

Consult official documentation for qualified replacements within the 71M65xx series, such as the 71M6543GT or other variants with compatible packages and pinouts. Verify functional equivalence regarding phase support and memory size before substitution.