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Teridian Semiconductor - Energy Meter ICs

Numéro de référence 71M6541F
Description Energy Meter ICs
Fabricant Teridian Semiconductor 
Logo Teridian Semiconductor 





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71M6541F fiche technique
19-5376; Rev 1.1; 4/11
A Maxim Integrated Products Brand
71M6541D/71M6541F/71M6542F
Energy Meter ICs
DATA SHEET
April 2011
GENERAL DESCRIPTION
FEATURES
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.
Shunt
NEUTRAL
Shunt
LOAD
Note:
LINE This system is referenced to LINE
NEUTRAL
LINE
POWER SUPPLY
0.1% Accuracy Over 2000:1 Current Range
Exceeds IEC 62053/ANSI C12.20 Standards
Two Current Sensor Inputs with Selectable
Differential Mode
Selectable Gain of 1 or 8 for One Current Input
to Support Shunts
High-Speed Wh/VARh Pulse Outputs with
Programmable Width
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:
- Metrology Compensation
- Accurate RTC for TOU Functions with
Automatic Temperature Compensation
for Crystal in All Power Modes
Independent 32-Bit Compute Engine
46-64Hz Line Frequency Range with the Same
Calibration
Phase Compensation (±10°)
Three Battery-Backup Modes:
- Brownout Mode (BRN)
- LCD Mode (LCD)
- Sleep Mode (SLP)
Wake-Up on Pin Events and Wake-On Timer
1µA in Sleep Mode
www.DataSheet4U.net TERIDIAN
71M6xx1
Pulse
Trans-
former
AMR
IR
HOST
MUX and ADC V3P3A V3P3SYS GNDA GNDD
IAP PWR MODE
IAN CONTROL
TERIDIAN WAKE-UP
71M6541D/F REGULATOR
VBAT
VA
VBAT_RTC
IBP TEMPERATURE BATTERY
IBN
SENSOR
MONITOR
VREF
SERIAL PORTS
TX
RX
MODUL- RX
ATOR TX
POWER FAULT
COMPARATOR
SPI INTERFACE
RAM
COMPUTE
ENGINE
FLASH
MEMORY
MPU
RTC
TIMERS
ICE
COM0...5
SEG
SEG/DIO
LCD DRIVER
DIO, PULSES
DIO
V3P3D
OSCILLATOR/
PLL XIN
XOUT
BATTERY
RTC
BATTERY
LCD DISPLAY
8888.8888
PULSES,
DIO
I2C or µWire
EEPROM
32 kHz
Flash Security
In-System Program Update
8-Bit MPU (80515), Up to 5 MIPS
Full-Speed MPU Clock in Brownout Mode
LCD Driver:
- Up to 6 Commons/Up to 56 Pins
5V LCD Driver with DAC
Up to 51 Multifunction DIO Pins
Hardware Watchdog Timer (WDT)
I2C/MICROWIRE™ EEPROM Interface
SPI Interface with Flash Program Capability
Two UARTs for IR and AMR
IR LED Driver with Modulation
Industrial Temperature Range
11/5/2010
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.
64-Pin (71M6541D/71M6541F) and 100-pin
(71M6542F) Lead(Pb)-Free LQFP Package
v1.1 © 2008–2011 Teridian Semiconductor Corporation 1

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