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Maxim产品 - 71M6543GHT介绍

71M6543GHT - Energy Meter ICs

71M6543GHT是Maxim美信半导体公司的一款电能测量与计量SoC产品，71M6543GHT是Energy Meter ICs，本站介绍了71M6543GHT的封装应用图解、特点和优点、功能等，并给出了与71M6543GHT相关的Maxim元器件型号供参考。

71M6543GHT - Energy Meter ICs - 电能测量与计量SoC - Fourth-Generation Energy Metering ICs Deliver Industry's Highest Accuracy - 美信半导体

产品概述

The 71M6543FT/71M6543HT/71M6543GT/71M6543GHT (71M654xT) are 4th-generation three-phase metering systems-on-chips (SoCs) with a 5MHz, 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma ADC, seven analog inputs, digital temperature compensation, precision voltage reference, and a 32-bit computation engine (CE) support a wide range of metering applications with very few external components.

The 71M654xT devices support optional interfaces to the Maxim Integrated 71M6x03 series of isolated sensors offering BOM cost reduction, immunity to magnetic tamper, and enhanced reliability. Other features include an SPI interface, advanced power management, ultra-low-power operation in active and battery modes, 5KB shared RAM, and 64KB/128KB flash memory that can be programmed in the field with code and/or data during meter operation and the ability to drive up to six LCD segments per SEG driver pin. High processing and sampling rates combined with differential inputs offer a powerful platform for residential meters.

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.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performance
  • 0.1% Typical Accuracy Over 2000:1 CurrentRange
  • 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 withProgrammable 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)
  • Wake-Up on Pin Events and Wake-On Timer
  • 1µA in Sleep Mode
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