71M6545-IGT/F

Overview

The 71M6545-IGT/F is a three-phase metrology System on Chip (SoC) manufactured by Analog Devices Inc. under the Silergy brand. It integrates an 80515 user MPU core with 64 KB of Flash and 5 KB of SRAM. The device supports three differential or single-ended current inputs and three single-ended voltage inputs, achieving ±0.1% accuracy over a 2000:1 range. Key features include a Real-Time Clock (RTC), 29 GPIOs, and one UART interface. It operates within a temperature range of -40°C to +85°C and is housed in a LQFP-64 package.

Feature Summary

• Integrates a 5 MHz 8051-compatible microprocessor core for local data processing and metering logic execution.
• Features a high-resolution 22-bit Delta-Sigma ADC architecture to support precise energy measurement across multiple channels.
• Includes a digital temperature-compensated Real-Time Clock (RTC) for accurate time-stamping and billing cycles.
• Supports connection to various current sensors including CTs, shunts, and Rogowski coils via dedicated analog inputs.

Applications

• Three-phase residential and commercial electricity meters
• Smart grid metering infrastructure requiring high precision
• Industrial power monitoring systems

Procurement Notes

Verify the specific suffix 'IGT/F' against official datasheets to confirm tape-and-reel packaging and RoHS compliance status. Confirm that the manufacturer designation aligns with the current Silergy product line structure under Analog Devices. Ensure the component meets all regional regulatory requirements for electronic equipment before procurement.

Selection Notes

Select this SoC when designing three-phase metering applications requiring integrated signal conditioning and processing. The device is suitable for designs needing high accuracy without external DSPs. Consider the available memory sizes and I/O count relative to the target LCD or communication interface requirements.

Part Context

The 71M6545 belongs to the 71M6x01 family of metrology processors, which are designed to simplify the design of compliant electricity meters. These devices consolidate ADC, MCU, and peripheral functions into a single chip, reducing bill-of-materials costs and board space compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers for the 71M6545-IGT/F are not available in the provided documentation. Consult official manufacturer resources for cross-reference information.