71M6543HT Datasheet: Energy Meter ICs





71M6543HT Energy Meter ICs Datasheet

Part Number 71M6543HT
Description Energy Meter ICs
Manufacture Maxim Integrated
Total Page 30 Pages
PDF Download Download 71M6543HT Datasheet PDF

Features: 71M6543FT/71M6543HT/ 71M6543GT/71M6543GH T EVALUATION KIT AVAILABLE Energy Mete r ICs General Description The 71M6543F T/71M6543HT/71M6543GT/71M6543GHT (71M65 4xT) are 4th-generation three-phase met ering systems-on-chips (SoCs) with a 5M Hz, 8051-compatible MPU core, low-power RTC with digital temperature compensat ion, flash memory, and LCD driver. Our Single Converter Technology® with a 22 -bit delta-sigma ADC, seven analog inpu ts, digital temperature compensation, p recision voltage reference, and a 32-bi t computation engine (CE) support a wid e range of metering applications with v ery few external components. The 71M654 xT devices support optional interfaces to the Maxim Integrated 71M6x03 series of isolated sensors offering BOM cost r eduction, immunity to magnetic tamper, and enhanced reliability. Other feature s include an SPI interface, advanced po wer management, ultra-lowpower operatio n in active and battery modes, 5KB shar ed RAM, and 64KB/128KB flash memory that can be programmed in th.

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71M6543FT/71M6543HT/
71M6543GT/71M6543GHT
EVALUATION KIT AVAILABLE
Energy Meter ICs
General Description
The 71M6543FT/71M6543HT/71M6543GT/71M6543GHT
(71M654xT) are 4th-generation three-phase metering
systems-on-chips (SoCs) with a 5MHz, 8051-compat-
ible 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,
seven analog inputs, digital temperature compensation,
precision voltage reference, and a 32-bit computation
engine (CE) support a wide range of metering applications
with very few external components.
The 71M654xT devices support optional interfaces to the
Maxim Integrated 71M6x03 series of isolated sensors
offering BOM cost reduction, immunity to magnetic tam-
per, and enhanced reliability. Other features include an
SPI interface, advanced power management, ultra-low-
power operation in active and battery modes, 5KB shared
RAM, and 64KB/128KB flash memory that can be pro-
grammed 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 platform
for residential meters.
A complete array of code development tools, demonstra-
tion code, and reference designs enable rapid develop-
ment and certification of meters that meet all ANSI and
IEC electricity metering standards worldwide.
The 71M654xT family operates over the industrial tem-
perature range and comes in a 100-pin lead(Pb)-free
LQFP package.
Applications
● Three-Phase Residential, Commercial, and Industrial
Energy Meters
Ordering Information and Typical Operating Circuit appear
at end of data sheet.
Single Converter Technology is a registered trademark of
Maxim Integrated Products, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corp.
Benefits and Features
● SoC Integration and Unique Isolation Technique
Reduces BOM Cost Without Sacrificing Performance
• 0.1% Typical Accuracy Over 2000:1 Current
Range
• Exceeds IEC 62053/ANSI C12.20 Standards
• Four-Quadrant Metering
• 46-64Hz Line Frequency Range with the Same
Calibration
• Phase Compensation (±10º)
• Independent 32-Bit Compute Engine
• 64KB Flash, 5KB RAM (71M6543FT/71M6543HT)
• 128KB Flash, 5KB RAM (71M6543GT/71M6543GHT)
• Built-In Flash Security
• SPI Interface with Flash Program Capability
• Up to Four Pulse Outputs with Pulse Count
• 8-Bit MPU (80515), Up to 5 MIPS
• Full-Speed MPU Clock in Brownout Mode
• LCD Driver Allows Up to 6 Commons/Up to
56 Pins
• Up to 51 Multifunction DIO Pins
• Hardware Watchdog Timer (WDT)
• Two UARTs for IR and AMR
• IR LED Driver with Modulation
• I2C/MICROWIRE® EEPROM Interface
● Innovative Isolation Technology (Requires
Companion 71M6xxx Sensor, also from Maxim
Integrated) Eliminates Current Transformers
• Four Current Sensor Inputs with Selectable
Differential Mode
• Selectable Gain of 1 or 8 for One Current Input to
Support Neutral Current Shunt
• High-Speed Wh/VARh Pulse Outputs with
Programmable Width
● Digital Temperature Compensation Improves System
Performance
• Metrology Compensation
• Accurate RTC for TOU Functions with Automatic
Temperature Compensation for Crystal in All
Power Modes
● Power Management Extends Battery Life During
Power Outages
• 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
19-6720; Rev 7; 12/15

                    
                    






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