78M6612-IMR/F

Overview

The 78M6612-IMR/F is a single-phase power and energy measurement System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It integrates a 32-bit calculation engine, an 80515 MPU core, real-time clock, and flash memory. The device features a 22-bit ADC resolution and operates at a maximum clock frequency of 10 MHz. It supports I2C and UART interfaces and functions within a supply voltage range of 3 V to 3.6 V. The component is housed in a 68-SQFN package with dimensions of 8x8 mm and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates a 32-bit calculation engine and 80515 microprocessor core for metering applications
• Includes a high-resolution 22-bit analog-to-digital converter for precise signal acquisition
• Combines measurement functionality with non-volatile flash memory and real-time clock capabilities

Applications

• Single-phase AC power metering systems
• Energy monitoring devices
• Smart grid endpoint instrumentation

Procurement Notes

Verify current availability status as the part may be discontinued or subject to limited supply constraints. Confirm that the specific suffix IMR/F matches the required 68-SQFN package variant. Ensure compatibility with existing firmware architectures designed for the 80515 core before procurement. Check for any alternative lead times if standard stock is unavailable.

Selection Notes

Select this component for designs requiring integrated single-phase metering with embedded processing. The 22-bit ADC provides sufficient resolution for Class 1 accuracy requirements. Consider the 68-pin QFN footprint for PCB layout constraints. Verify that the 3.3V operating voltage aligns with the system power domain. Evaluate the need for the integrated RTC against external timing requirements.

Part Context

This SoC belongs to the Teridian 78M66xx series, which utilizes Single Converter Technology®. The family is designed to reduce bill-of-materials costs by combining analog front-end and digital processing. The 78M6612 variant specifically targets single-phase applications, distinguishing it from multi-phase counterparts in the same product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer obsolescence notices for potential end-of-life management strategies.