78M6618-MR/F/P1

Overview

The 78M6618-MR/F/P1 is a single-phase power and energy measurement integrated circuit from the Teridian 78M6618 series. It features an 80515 user MPU core and a dedicated signal processing core for high-accuracy metering. The device supports up to eight single-phase AC outlets with integrated sensor inputs. Key specifications include a 3.3 V supply voltage, 128 kB internal Flash memory, and 4 kB RAM. It offers SPI and UART interfaces, operates within a -40°C to +85°C temperature range, and is housed in a SQFN-68 package.

Feature Summary

• Integrates an 80515 microprocessor core with a specialized signal processing engine for precise energy calculations.
• Supports independent monitoring of multiple single-phase AC outlets via ten total sensor inputs.
• Includes on-chip temperature sensing and flexible oscillator options for system stability.

Applications

• Single-phase smart electricity meters
• Polyphase multi-branch energy monitoring systems
• Power outlet management units

Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm that the MR suffix indicates tape and reel packaging rather than tube. Check current lifecycle status as some variants may be discontinued or subject to limited supply constraints. Ensure compatibility with existing PCB footprints for the SQFN-68 package before finalizing procurement orders.

Selection Notes

Select this model for applications requiring high integration of metering and control functions in a small footprint. The SQFN-68 package suits space-constrained designs. Consider the 80515 core if legacy software compatibility is required. Evaluate interface needs against available SPI and UART channels. Compare against other 78M66xx series parts if different channel counts or memory sizes are needed.

Part Context

This component belongs to the Teridian 78M6618 family of highly integrated metering ICs. It is designed for standalone or host-controlled energy measurement environments. The part combines analog front-end capabilities with digital processing to reduce external component count. It represents a solution for accurate billing-grade energy monitoring in residential and commercial settings.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-compatibility with other 78M6618 variants such as 78M6618-IM-F based on specific package and suffix requirements.