71m6541g-igtr/f Maxim Integrated Products, Inc., 71m6541g-igtr/f Datasheet

71m6541g-igtr/f

Manufacturer Part Number

71m6541g-igtr/f

Description

71m6541d/71m6541f/71m6542f Energy Meter Ics

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.71M6541G-IGTRF.pdf (165 pages)

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Single Converter Technology is a registered trademark of Maxim Integrated

Products, Inc.

SPI is a trademark of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

GENERAL DESCRIPTION

The 71M6541D/71M6541F/71M6542F are Teridian’s 4th-generation

single-phase metering 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, three or four analog inputs, digital temperature com-

pensation, precision voltage reference, and a 32-bit computation

engine (CE) supports a wide range of metering applications with

very few external components.

The 71M6541D/71M6541F/71M6542F support optional interfaces to

the Teridian 71M6x01 series of isolated sensors, which offer 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, 3/5KB shared RAM and 32/64KB of 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 metering 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.

v1.1

NEUTRAL

LINE

TERIDIAN

71M6xx1

Shunt

A Maxim Integrated Products Brand

Trans-

former

Pulse

HOST

AMR

Shunt

NEUTRAL

IAP

IAN

IBP

IBN

SPI INTERFACE

SERIAL PORTS

MODUL-

POWER FAULT

COMPARATOR

MUX and ADC

LINE

ATOR

VREF

LOAD

TEMPERATURE

V3P3A V3P3SYS

71M6541D/F

TERIDIAN

COMPUTE

MEMORY

SENSOR

ENGINE

TIMERS

FLASH

MPU

RAM

RTC

ICE

POWER SUPPLY

Note:

This system is referenced to LINE

GNDA GNDD

OSCILLATOR/

REGULATOR

DIO, PULSES

11/5/2010

VBAT_RTC

LCD DRIVER

PWR MODE

CONTROL

BATTERY

MONITOR

WAKE-UP

COM0...5

SEG/DIO

PLL

VBAT

V3P3D

XOUT

SEG

DIO

XIN

BATTERY

RTC

BATTERY

8888.8888

LCD DISPLAY

32 kHz

EEPROM

PULSES,

C or µWire

DIO

71M6541D/71M6541F/71M6542F

FEATURES

• 0.1% Accuracy Over 2000:1 Current Range

• Exceeds IEC 62053/ANSI C12.20 Standards

• Two Current Sensor Inputs with Selectable

• Selectable Gain of 1 or 8 for One Current Input

• High-Speed Wh/VARh Pulse Outputs with

• 32KB Flash, 3KB RAM (71M6541D)

• 64KB Flash, 5KB RAM (71M6541F/42F)

• Up to Four Pulse Outputs with Pulse Count

• Four-Quadrant Metering

• Digital Temperature Compensation:

• Independent 32-Bit Compute Engine

• 46-64Hz Line Frequency Range with the Same

• Phase Compensation (±10°)

• 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 5 MIPS

• Full-Speed MPU Clock in Brownout Mode

• LCD Driver:

• 5V LCD Driver with DAC

• 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

• 64-Pin (71M6541D/71M6541F) and 100-pin

Differential Mode

to Support Shunts

Programmable Width

Calibration

(71M6542F) Lead(Pb)-Free LQFP Package

C/MICROWIRE™ EEPROM Interface

- Up to 6 Commons/Up to 56 Pins

Metrology Compensation

Accurate RTC for TOU Functions with

Automatic Temperature Compensation

for Crystal in All Power Modes

Brownout Mode (BRN)

LCD Mode (LCD)

Sleep Mode (SLP)

Energy Meter ICs

DATA SHEET

April 2011

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