78M6610+PSU/B48

Overview

The 78M6610+PSU/B48 is a single-phase energy metering system-on-chip (SoC) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates an 8051-compatible microcontroller core with high-precision analog front-end circuitry designed for utility metering applications. The device supports direct connection to current transformers and voltage inputs, providing comprehensive measurement capabilities for active, reactive, and apparent energy. Key specifications include a supply voltage range of 3 V to 3.6 V, an operating temperature range of -40°C to +85°C, and a 24-WFQFN exposed pad package. It features built-in calibration coefficients and communication interfaces suitable for smart grid deployments.

Feature Summary

• Integrates high-precision analog-to-digital conversion for simultaneous multi-channel signal acquisition
• Includes an embedded 8051-compatible processor core for local data processing and control logic
• Provides dedicated hardware accelerators for calculating active, reactive, and apparent energy values
• Supports secure communication protocols via integrated serial interfaces for remote reading

Applications

• Single-phase residential electricity meters
• Smart grid prepayment metering systems
• Utility-grade energy monitoring devices
• Industrial power management units requiring single-phase measurement

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors due to discontinued status risks. Confirm package variant B48 matches design requirements. Check for lead-free compliance and RoHS certification. Validate lot traceability for critical infrastructure projects. Ensure ESD handling procedures are followed during assembly.

Selection Notes

Select this SoC for applications requiring integrated MCU and metering functions in a compact form factor. Consider the 24-TQFN package constraints for PCB layout. Evaluate interface compatibility with existing communication modules. Assess thermal performance within the specified operating temperature range. Verify firmware support availability for the specific B48 suffix variant.

Part Context

This component belongs to the 78M66xx series of energy metering ICs from Maxim Integrated, now part of Analog Devices. The series is widely used in single-phase metering solutions. The 78M6610 variant specifically targets cost-sensitive yet accurate metering applications. The PSU/B48 suffix indicates specific packaging and testing configurations within the product line.

Replacement Considerations

Publicly confirmed substitute part numbers for the 78M6610+PSU/B48 are not available in standard documentation. Due to the discontinued status, engineering change notices or obsolescence notifications should be consulted for approved alternates. Contact Analog Devices directly for legacy replacement guidance.