71M6543G
Description
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 pensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma ADC, seven analog inputs, digital metrology temperature pensation, precision voltage reference, and a 32-bit putation engine (CE) supports a wide range of metering applications with very few external ponents.
Key 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
- Independent 32-Bit pute Engine
