78M6618-IM/F

Overview

The 78M6618-IM/F is a single-phase power and energy measurement integrated circuit from the 78M661x series. It features an 80515 user MPU core and a dedicated CE signal processing core. The device supports up to ten sensor inputs for comprehensive metering applications. Internal memory includes 128 KBytes of Flash program storage and 4 KBytes of RAM. Communication interfaces include SPI and UART. The component operates on a 3.3 V supply voltage and is housed in an SQFN-68 package.

Feature Summary

• Integrates an 80515 microprocessor core with a specialized signal processing engine for high-precision energy calculations.
• Supports multiple sensor inputs to facilitate accurate measurement of electrical parameters in single-phase systems.
• Includes on-chip temperature sensing capabilities and flexible oscillator options for stable system timing.

Applications

• Single-phase residential electricity meters
• Polyphase multi-branch energy monitoring systems
• Power distribution unit (PDU) energy tracking

Procurement Notes

Verify current availability status as this component may be subject to limited supply or discontinuation. Confirm that the specific suffix matches the required pinout and functional configuration. Ensure compatibility with existing design infrastructure before procurement. Check for alternative sources if standard channels are restricted.

Selection Notes

Select this model for single-phase applications requiring integrated processing and measurement. Consider the SQFN-68 package constraints for PCB layout. Evaluate the 128 KB Flash capacity against firmware requirements. Verify interface compatibility with host controllers using SPI or UART protocols.

Part Context

This part belongs to the 78M661x family of metering SoCs designed by Analog Devices / Maxim Integrated. These components target utility metering and energy management sectors. The family provides varying levels of integration for different phase configurations and input counts.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for cross-reference data.