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71M6521DE - Energy Meter

Description

The Teridian™ 71M6521DE/DH/FE energy meter ICs are highly integrated systems-on-a-chip (SoCs) with an MPU core, RTC, flash, and LCD driver.

Features

  • Up to 0.1% Wh Accuracy Over 2000:1 Current Range.
  • Exceeds IEC 62053/ANSI C 12.20 Standards.
  • Voltage Reference < 40 ppm/°C (< 20ppm/°C for 71M6521DH).
  • Four Sensor Inputs.
  • VDD Referenced.
  • Low-Jitter Wh and VARh Pulse Test Outputs (10kHz max).
  • Pulse Count for Pulse Outputs.
  • Four-Quadrant Metering.
  • Tamper Detection Neutral Current with CT or Shunt.
  • Line Frequency Count for RTC.
  • Digital Temperature Compe.

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Datasheet preview – 71M6521DE

Datasheet Details

Part number 71M6521DE
Manufacturer Maxim Integrated
File Size 2.07 MB
Description Energy Meter
Datasheet download datasheet 71M6521DE Datasheet
Additional preview pages of the 71M6521DE datasheet.

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Full PDF Text Transcription

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19-5370; Rev 3; 7/12 71M6521DE/DH/FE Energy Meter ICs DATA SHEET GENERAL DESCRIPTION The Teridian™ 71M6521DE/DH/FE energy meter ICs are highly integrated systems-on-a-chip (SoCs) with an MPU core, RTC, flash, and LCD driver. The Single Converter Technology® with a 22-bit delta-sigma ADC, four analog inputs, digital temperature compensation, precision voltage reference, battery voltage monitor, and 32-bit computation engine (CE) supports a wide range of residential metering applications with very few low-cost external components. A 32kHz crystal time base for the entire system and internal battery-backup support for RAM and RTC further reduce system cost. The ICs support 2-wire, 3-wire, and 4-wire singlephase and dual-phase residential metering along with tamper-detection mechanisms.
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