71M6543GH MAXIM [Maxim Integrated Products], 71M6543GH Datasheet

71M6543GH

Manufacturer Part Number

71M6543GH

Description

Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.71M6543GH.pdf (157 pages)

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Single Converter Technology is a registered trademark of Maxim Integrated

Products, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Pin Configurations appear at end of data sheet.

Functional Diagrams continued at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

GENERAL DESCRIPTION

The 71M6543F, 71M6543H, 71M6543G, and 71M6543GH are

Teridian’s 4th-generation polyphase metering systems-on-chips

(SoCs) with a 5MHz 8051-compatible MPU core, low-power real-

time clock (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 metrology

temperature compensation, precision voltage reference, and a 32-

bit computation engine (CE) supports a wide range of metering

applications with very few external components.

The 71M6543F, 71M6543H, 71M6543G and 71M6543GH support

optional interfaces to the 71M6xx3 series of isolated sensors that

offer BOM cost reduction, immunity to magnetic tamper, and

enhanced reliability. The ICs feature ultra-low-power operation in

active and battery modes, 5KB shared RAM, and 64KB

(71M6543F, 71M6543H) or 128KB (71M6543G, 71M6543GH) of

flash memory, which can be programmed with code and/or data

during meter operation. High processing and sampling rates

combined with differential inputs offer a powerful metering platform

for commercial and industrial meters with up to class 0.2 accuracy

(71M6543H, 71M6543GH).

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.

NEUTRAL

Shunt Current Sensors

Pulse Transformers

HOST

AMR

3x TERIDIAN

71M6xx3

Functional Diagrams

Note: This system is referenced to Neutral

NEUTRAL

IADC0

IADC1

VADC10 (VC)

VADC9 (VB)

IADC4

IADC5

VADC8 (VA)

IADC2

IADC3

SPI INTERFACE

IADC6

IADC7

SERIAL PORTS

MODUL-

POWER FAULT

COMPARATOR

MUX and ADC

ATOR

*IN = Neutral Current

VREF

}

IN*

71M6543GH

TEMPERATURE

V3P3A V3P3SYS

71M6543F/

71M6543H/

71M6543G/

TERIDIAN

COMPUTE

MEMORY

SENSOR

ENGINE

TIMERS

FLASH

MPU

RAM

RTC

ICE

POWER SUPPLY

LOAD

GNDA GNDD

OSCILLATOR/

REGULATOR

DIO, PULSES

VBAT_RTC

LCD DRIVER

PWR MODE

CONTROL

BATTERY

MONITOR

WAKE-UP

COM0...5

SEG/DIO

PLL

VBAT

9/17/2010

V3P3D

XOUT

SEG

DIO

XIN

BATTERY

RTC

BATTERY

LCD DISPLAY

8888.8888

32 kHz

EEPROM

PULSES,

C or µWire

DIO

71M6543F/H and 71M6543G/GH

FEATURES

• 0.1% Accuracy Over 2000:1 Current Range

• Exceeds IEC 62053/ANSI C12.20 Standards

• Seven Sensor Inputs with Neutral Current

• Selectable Gain of 1 or 8 for One Current

• High-Speed Wh/VARh Pulse Outputs with

• 64KB Flash, 5KB RAM (71M6543F/H)

• 128KB Flash, 5KB RAM (71M6543G/GH)

•

• Digital Temperature Compensation:

• Independent 32-Bit Compute Engine

• 46-64Hz Line Frequency Range with the Same

• Phase Compensation (±7°)

• Three Battery-Backup Modes:

• Wake-Up on Pin Events and Wake-on-Timer

• 1µA in Sleep Mode

• Flash Security

• In-System Program Update

• 8-Bit MPU (80515), Up to 5MIPS

• Full-Speed MPU Clock in Brownout Mode

• LCD Driver:

• Up to 51 Multifunction DIO Pins

• Hardware Watchdog Timer (WDT)

• I

• SPI Interface with Flash Program Capability

• Two UARTs for IR and AMR

• IR LED Driver with Modulation

• Industrial Temperature Range

• 100-Pin Lead-Free LQFP Package

Measurement, Differential Mode Selectable

for Current Inputs

Input to Support Shunts

Programmable Width

Up to Four Pulse Outputs with Pulse Co

Four-Quadrant Metering, Phase Seque

Calibration

C/MICROWIRE™ EEPROM Interface

Metrology Compensation

Accurate RTC for TOU Functions with

Brownout Mode

LCD Mode

Sleep Mode

6 Common Segment Drivers

Up to 56 Selectable Pins

Automatic Temperature Compensation

for Crystal in All Power Modes

Energy Meter ICs

19-5375; Rev 1.2; 4/11

DATA SHEET

April 2011

ncing

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