MAX71315CECQ+T

Overview

The MAX71315CECQ+T is a single-phase energy metering System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It integrates a MAXQ30 user MPU core with 256 KB Flash and 21 KB SRAM. The device supports current sensors including CT, shunt, and Rogowski coils, offering ±0.1% accuracy at a 5000:1 range. Key specifications include a supply voltage of 3 V to 3.6 V, operating temperature from -40°C to 85°C, and an input impedance of 450 kOhm. It features 54 GPIOs, four UARTs, hardware encryption (3DES, AES), and an RTC.

Feature Summary

• Integrates precision analog front-end components with digital calibration algorithms for high-accuracy measurement.
• Supports multiple current sensor types including current transformers, shunts, and Rogowski coils.
• Includes hardware security features such as 3DES and AES encryption for data protection.
• Features integrated real-time clock and extensive LCD driver capabilities for display interfaces.

Applications

• Single-phase residential and commercial energy metering
• Smart grid infrastructure monitoring
• Prepaid metering systems requiring secure data handling

Procurement Notes

Verify the specific suffix 'ECQ+T' against official Analog Devices documentation to confirm package type, tape-and-reel quantity, and lead-free status. Ensure compatibility with your PCB footprint for the 100-LQFP package. Cross-reference the part number with the manufacturer's latest lifecycle status to confirm availability and obsolescence warnings before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high accuracy in single-phase metering environments. The integrated MAXQ30 processor reduces external MCU requirements. Consider the 450 kOhm input impedance and supported sensor types when designing the analog front end. Verify that the 3 V to 3.6 V supply range aligns with your system power architecture and that the -40°C to 85°C operating range meets environmental constraints.

Part Context

This SoC belongs to the MAX713xx series of energy metering devices. It shares architectural similarities with models like the MAX71314C and MAX71334C but is optimized for single-phase applications. The integration of the MAXQ30 core distinguishes it from simpler ADC-based metering ICs, allowing for complex firmware execution directly on the chip.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support or authorized distributors for qualified alternatives if this specific variant is discontinued or unavailable.

FAQ

What types of current sensors does the MAX71315CECQ+T support?

The device supports Current Transformers (CT), shunt resistors, and Rogowski coils.

What is the measurement accuracy of this SoC?

It provides ±0.1% accuracy across a 5000:1 dynamic range.

Does the MAX71315CECQ+T include hardware encryption?

Yes, it includes hardware-accelerated 3DES and AES encryption modules.