71M6521BE

Energy Meter IC

Industry's Most Integrated Metering SoC Product Line and Best-in-Class Accuracy Performance

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Overview

< 0.4% Wh Accuracy Over 2000:1 Current Range and Over Temperature
Exceeds IEC 62053/ANSI C12.20 Standards
Voltage Reference < 40ppm/°C
Four Sensor Inputs—V_DD Referenced
Low Jitter Wh Test Output (10kHz maximum)
Pulse Count for Wh Pulse Output
Tamper Detection: Neutral Current with CT or Shunt
Three Battery Modes with Wake-Up on Pushbutton or Timer
- Brownout Mode (48µA)
- LCD Mode (5.7µA)
- Sleep Mode (2.9µA)
8KB Flash with Security

The 71M6521BE is a highly integrated SoC with an MPU core, flash, and LCD driver. Teridian's 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 further reduces system cost. The IC supports 2-wire single-phase residential metering along with tamper-detection mechanisms.

Maximum design flexibility is provided by multiple UARTs, I²C, MICROWIRE™, up to 14 DIO pins, and in-system programmable flash memory, which can be updated with data or application code in operation.

A complete array of ICE and development tools, programming libraries, and reference designs enable rapid development and certification of AMR and prepay meters that comply with worldwide electricity metering standards.

Applications

Residential Meters, 0.5% Accuracy

Documentation

Data Sheet 1

71M6521BE: Energy Meter IC Data Sheet (Rev.1) 07/23/2010

User Guide 2

UG-4741: 71M65xx ADM51 ICE Safety Notice 07/27/2010

UG-4747: 71M6521 Demo Board Quick Start Guide 07/27/2010

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

TFP2 Flash Programmer Demo Board

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Features and Benefits

Model TFP2 Flash Programmer
5V DC/1000mA Universal Wall Transformer with 2.5mm Plug
Serial Cable, DB9, Male/Female, Straight Cable, 2m Length
ATE Cable Housing and Crimp Pins
Target-LS Cable Housing and Crimp Pins
CHKSUM.EXE Utility Diskette
Model TFP2 User Manual
TFP2 Quick Start Guide

Product Details

The TSC flash programmer model TFP2 provides a stand-alone flash memory programming tool for Teridian's embedded controllers. The TFP2 facilitates flash programming in a manufacturing production environment requiring minimum ancillary equipment. Once the TFP2 has been initialized with the target's program code, the target's flash memory can be programmed either manually through operator pushbutton, or controlled by a factory automation computer (ATE).