71M6543F/H and 71M6543G/GH

Energy Meter ICs

 

 

FEATURES

 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)

 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

 

 

 

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