71M6545T
Energy Meter ICs
Smart Meter AFE Based on Maxim's Fourth-Generation Metering Architecture
产品详情
- 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
- Built-In Flash Security
- SPI Interface to Host with Flash Program Capability
- Up to Four Pulse Outputs with Pulse Count
- 8-Bit MPU (80515), Up to 5 MIPS (Optional Use)
- Full-Speed MPU Clock in Brownout Mode
- Up to 29 Multifunction DIO Pins
- Hardware Watchdog Timer (WDT)
- UART for AMR or Other Communication Duties
- 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
- Two Battery-Backup Modes:
- Brownout Mode (BRN)
- Sleep Mode (SLP)
- Two Battery-Backup Modes:
- Wake-Up on Pin Events and Wake-On Timer
- 1µA in Sleep Mode
An external host processor can access metrology functions directly through the SPI interface, or alternatively through the embedded MPU core in applications requiring metrology data capture, storage, and preprocessing within the metrology subsystem. In addition, the devices integrate an RTC, DIO, and UART. A complete array of ICE and development tools, programming libraries, and reference designs enable rapid development and certification of meters that meet all ANSI and IEC electricity metering standards worldwide.
The 71M6545T/71M6545HT operate over the industrial temperature range and come in a 64-pin lead(Pb)-free package.
Applications
- Three-Phase Residential, Commercial, and Industrial Energy Meters
参考资料
硬件生态系统
| 部分模型 | 产品周期 | 描述 |
|---|---|---|
| 产品 1 | ||
| 71M6545 | 电表处理器 | |
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