71M6532F-IGT/F

Overview

The 71M6532F-IGT/F is a single-phase and two-phase metering System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It integrates an 80515 user MPU core with 256 kB of Flash memory and 4 kB of SRAM. The device features a 22-bit ADC providing ±0.1% accuracy over a 2000:1 current range. It supports CT, shunt, and Rogowski coil sensors, includes a Real-Time Clock (RTC), and drives up to 268 LCD segments via 43 GPIOs. Communication is handled through two UART interfaces.

Feature Summary

• Integrates a high-precision 22-bit Delta-Sigma ADC for accurate energy measurement across wide dynamic ranges.
• Combines a dedicated 80515 microprocessor core with substantial non-volatile storage for complex metering algorithms.
• Supports multiple sensor input types including current transformers, shunts, and Rogowski coils.
• Includes integrated peripherals such as a temperature-compensated RTC and a high-capacity LCD driver.

Applications

• Single-phase residential electricity meters
• Two-phase multi-tariff utility meters
• Smart grid metering endpoints requiring high accuracy

Procurement Notes

Verify the specific suffix requirements for the 71M6532F-IGT/F variant against official datasheets, as package and temperature grade designations can vary. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability for this specific part number may be subject to change or limited supply conditions.

Selection Notes

Select this component when designing single or two-phase meters requiring ±0.1% accuracy over a 2000:1 range. It is suitable for applications needing integrated LCD driving capabilities and support for various current sensing technologies without external multiplexers. Ensure the design accommodates the LQFP-100 package and utilizes the available UART interfaces for communication.

Part Context

This SoC belongs to the 71M65xx series of precision energy metering devices. It shares architectural similarities with variants like the 71M6531 and 71M6532D but offers specific memory configurations and feature sets tailored for advanced metering infrastructure. The series is designed to meet international standards such as IEC 62053 and ANSI C12.20.

Replacement Considerations

Potential substitutes within the same family include the 71M6531D, 71M6531F, and 71M6532D. Verify pin compatibility and memory size differences before substitution, as these variants may offer different Flash capacities or peripheral counts while maintaining the same core architecture.

FAQ

What types of current sensors does the 71M6532F support?

The device supports Current Transformers (CT), Shunt resistors, and Rogowski coils as input sensors.

Does the 71M6532F include a real-time clock?

Yes, it includes an integrated Real-Time Clock (RTC) with digital temperature compensation.

What is the maximum LCD segment capacity?

The device can drive up to 268 LCD segments, organized as 67 rows by 4 columns.