71M6543GH

Energy Meter ICs

Eliminate High-Cost Current Transformers in Electricity Meter Designs

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Part Details

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 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)
I²C/MICROWIRE^® EEPROM Interface
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