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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim Integrated 71M6543 Energy Meter ICs
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Maxim 71M6543 Energy Meter ICs

Maxim Integrated 71M6543 Energy Meter ICs

Maxim Integrated 71M6543 Energy Meter ICs are Teridian™ 4th-generation polyphase metering Systems-on-Chips (SoCs). Features include 5MHz 8051-compatible MPU core, low-power real-time RTC with digital temperature compensation, flash memory, and LCD driver. Maxim Integrated Single Converter Technology® supports a wide range of metering applications with few external components. 71M6543 Energy Meter ICs offer a powerful metering platform for commercial and industrial meters with up to class 0.2 accuracy.

  • 0.1% Accuracy Over 2000:1 Current Range
  • Exceeds IEC 62053/ANSI C12.20 Standards
  • Seven Sensor Inputs with Neutral Current Measurement, Differential Mode Selectable for Current Inputs
  • Selectable Gain of 1 or 8 for One Current Input to Support Shunts
  • High-Speed Wh/VARh Pulse Outputs with Programmable Width
  • 64KB Flash, 5KB RAM (71M6543F/H)
  • 128KB Flash, 5KB RAM (71M6543G/GH)
  • Up to Four Pulse Outputs with Pulse Count
  • Four-Quadrant Metering, Phase Sequencing
  • Digital Temperature Compensation:
    Metrology Compensation
    Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power Modes
  • Independent 32-Bit Compute Engine
  • 46-64Hz Line Frequency Range with the Same Calibration
  • Phase Compensation (±7°)
  • Three Battery-Backup Modes:
    Brownout Mode LCD Mode Sleep Mode
    Wake-Up on Pin Events and Wake-on-Timer
    1μA in Sleep Mode
  • Flash Security
  • In-System Program Update
  • 8-Bit MPU (80515), Up to 5MIPS
  • Full-Speed MPU Clock in Brownout Mode
  • LCD Driver:
    6 Common Segment Drivers
    Up to 56 Selectable Pins
  • Up to 51 Multifunction DIO Pins
  • Hardware Watchdog Timer (WDT)
  • SPI Interface with Flash Program Capability
  • Two UARTs for IR and AMR
  • IR LED Driver with Modulation
  • Industrial Temperature Range
  • 100-Pin Lead-Free LQFP Package
Block Diagram
Block Diagram
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