71M6543F-IGT/F【PDF 1/154 页】IC ENERGY METERING

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71M6543F/71M6543G

Energy Meter ICs

Shunt Current Sensors

GENERAL DESCRIPTION

The 71M6543F/71M6543G are 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/71M6543G 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) or 128KB (71M6543G) of

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

during meter operation.

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.

FEATURES

? 0.1% Typical Accuracy Over 2000:1 Current

Range

? Exceeds IEC 62053/ANSI C12.20 Standards

? Seven Sensor Inputs with Neutral Current

Measurement, Differential Mode Selectable

for Current Inputs

? Selectable Gain of 1 or 8 for One Current

Input to Support Shunts

? High-Speed Wh/VARh Pulse Outputs with

Programmable Width

? 64KB Flash, 5KB RAM (71M6543F)

? 128KB Flash, 5KB RAM (71M6543G)

? Up to Four Pulse Outputs with Pulse Co unt

? Four-Quadrant Metering, Phase Sequencing

? Digital Temperature Compensation:

Metrology Compensation

Accurate RTC for TOU Functions with

Automatic Temperature Compensation

for Crystal in All Power Modes

NEUTRAL

LOAD

? Independent 32-Bit Compute Engine

? 46-64Hz Line Frequency Range with the Same

Calibration

IADC1 } IN*

IADC7 } IC

WAKE-UP

IADC5 } IB

VADC8 (VA)

IADC3 } IA

TEMPERATURE

SENSOR

RAM

COMPUTE

ENGINE

FLASH

MEMORY

MODUL-

RTC

OSCILLATOR/

TIMERS PLL

Pulse Transformers

AMR

HOST

POWER SUPPLY

NEUTRAL

Note: This system is referenced to Neutral

3x 71M6xx3

MUX and ADC V3P3A V3P3SYS GNDA GNDD

IADC0

PWR MODE

VADC10 (VC) CONTROL

IADC6

VADC9 (VB) 71M6543F/ REGULATOR

IADC4 71M6543G VBAT

VBAT_RTC

IADC2 BATTERY

MONITOR

VREF

COM0...5

SERIAL PORTS SEG

TX SEG/DIO

RX LCD DRIVER

DIO, PULSES

DIO

ATOR

POWER FAULT MPU V3P3D

COMPARATOR

XIN

SPI INTERFACE

ICE XOUT

*IN = Neutral Current

9/17/2010

BATTERY

RTC

BATTERY

LCD DISPLAY

8888.8888

PULSES,

DIO

I 2 C or μWire

EEPROM

32 kHz

? Phase Compensation ( ± 7 ° )

? Three Battery-Backup Modes:

Brownout Mode

LCD Mode

Sleep Mode

? 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:

6 Common Segment Drivers

Up to 56 Selectable Pins

? Up to 51 Multifunction DIO Pins

? Hardware Watchdog Timer (WDT)

? I 2 C/MICROWIRE? EEPROM Interface

Single Converter Technology is a registered trademark of Maxim Integrated

Products, Inc.

MICROWIRE is a registered trademark of National Semiconductor Corp.

? 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

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

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

19-5375; Rev 2; 10/13

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