71M6543GT
Energy Meter ICs
Fourth-Generation Energy Metering ICs Deliver Industry's Highest Accuracy
Part Details
- SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performance
- 0.1% Typical Accuracy Over 2000:1 Current Range
- Exceeds IEC 62053/ANSI C12.20 Standards
- Four-Quadrant Metering
- 46-64Hz Line Frequency Range with the Same Calibration
- Phase Compensation (±10° )
- Independent 32-Bit Compute Engine
- 64KB Flash, 5KB RAM (71M6543FT/71M6543HT)
- 128KB Flash, 5KB RAM (71M6543GT/71M6543GHT)
- Built-In Flash Security
- SPI Interface with Flash Program Capability
- Up to Four Pulse Outputs with Pulse Count
- 8-Bit MPU (80515), Up to 5 MIPS
- Full-Speed MPU Clock in Brownout Mode
- LCD Driver Allows Up to 6 Commons/Up to 56 Pins
- Up to 51 Multifunction DIO Pins
- Hardware Watchdog Timer (WDT)
- Two UARTs for IR and AMR
- IR LED Driver with Modulation
- I2C/MICROWIRE® EEPROM Interface
- Innovative Isolation Technology (Requires Companion 71M6xxx Sensor, also from Maxim Integrated) Eliminates Current Transformers
- Four Current Sensor Inputs with Selectable Differential Mode
- Selectable Gain of 1 or 8 for One Current Input to Support Neutral Current Shunt
- High-Speed Wh/VARh Pulse Outputs with Programmable Width
- Digital Temperature Compensation Improves System Performance
- Metrology Compensation
- Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power Modes
- Power Management Extends Battery Life During Power Outages
- Three Battery-Backup Modes:
- Brownout Mode (BRN)
- LCD Mode (LCD)
- Sleep Mode (SLP)
- Three Battery-Backup Modes:
- Wake-Up on Pin Events and Wake-On Timer
- 1µA in Sleep Mode
A complete array of code development tools, demonstration code, and reference designs enable rapid development and certification of meters that meet all ANSI and IEC electricity metering standards worldwide.
The 71M654xT family operates over the industrial temperature range and comes in a 100-pin lead(Pb)-free LQFP package.
Applications
- Three-Phase Residential, Commercial, and Industrial Energy Meters
- Magnetic Interference Demo
Documentation
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
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