78M6612-IGT/F

Overview

The 78M6612-IGT/F is a single-phase energy metering System on Chip (SoC) from Analog Devices Inc./Maxim Integrated. It integrates an 80515 core processor with a maximum clock frequency of 10 MHz, 32 kB Flash program memory, and 2 kB data RAM. The device features a 22-bit ADC resolution for high-precision measurements. It operates at a supply voltage of 3.3 V within an industrial temperature range of -40°C to +85°C. Connectivity includes I2C and UART interfaces, supported by 18 general-purpose I/O pins. The component is housed in a LQFP-64 package.

Feature Summary

• Integrates a dedicated 80515 microcontroller core optimized for metering applications
• Provides high-resolution analog-to-digital conversion capabilities for accurate energy measurement
• Supports standard digital communication protocols including I2C and UART for system integration

Applications

• Single-phase AC energy metering systems
• Smart grid electricity meters
• Prepaid energy metering units

Procurement Notes

Verify the specific suffix 'IGT' against official datasheets to confirm pinout and thermal characteristics. Confirm current availability status as distribution channels may list discontinued or limited stock items. Ensure compatibility with existing PCB footprints for the LQFP-64 package before procurement.

Selection Notes

Select this component for designs requiring integrated MCU and metering functions in a single-chip solution. Consider the 10 MHz processing speed and 22-bit ADC resolution for required accuracy levels. Evaluate the LQFP-64 package constraints against board space limitations and thermal management requirements.

Part Context

This part belongs to the 78M6612 series of metering SoCs. It shares architectural similarities with variants like the 78M6612-GT/F/P2 but differs in package type and specific interface configurations. The series is designed for cost-effective, high-accuracy single-phase power monitoring solutions.

Replacement Considerations

Check for direct pin-compatible replacements within the same series. Verify if alternative packages such as QFN offer equivalent functionality if LQFP-64 sourcing is unavailable.