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
C
B
A
Shunt Current Sensors
Pulse Transformers
HOST
AMR
IR
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
TX
RX
VREF
}
}
}
}
IN*
IC
IB
IA
TX
RX
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
I
2
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
2
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
unt
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