71M6543G - Maxim Integrated

71M6543G Energy Meter

The 71M6543F/71M6543G are 4th-generation polyphase metering systems-on-chips (SoCs) with a 5MHz 8051-compatible MPU core, low-power real-time clock (RTC) with digital temperature compensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma ADC, seven analog inputs, digital metrology temperature compensation, precisi.

Features

• 0.1% Typical 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)
• 128KB Flash, 5KB RAM (71M6543G)
• 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 Compen.