Products > Integrated Circuits (ICs) > Power Management ICs > 71M6543FT-IGT/F
  • 71M6543FT-IGT/F

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Metering Systems on a Chip - SoC Energy Meter ICs

  • Package/Case :
  • LQFP-100
  • Product Categories :
  • Energy Metering
  • RoHs Status:
  • Lead free/RoHS Compliant
  • Marking Code:
  • 71M6543FT-IGT
  • In-stock:
  • 3000


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71M6543FT-IGT/F Product Details

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 realtime 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.

• 0.1% 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/H)
• 128KB Flash, 5KB RAM (71M6543G/GH)
• Up to Four Pulse Outputs with Pulse Count
• 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
• Independent 32-Bit Compute Engine 
• 46-64Hz Line Frequency Range with the Same Calibration
• 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)
• 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

71M6543FT-IGT/F Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

  • Measurement Error
  • 0.1%
  • Voltage I/O High
  • 2V
  • Voltage I/O Low
  • 0.8V
  • Voltage Supply
  • 3V ~ 3.6V
  • Meter Type
  • 3 Phase
  • Operating Temperature
  • -40??C ~ 85??C
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 100-LQFP
  • Supplier Device Package
  • 100-LQFP (14x14)

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    90 days quality guarantee for all products.


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After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that 71M6543FT-IGT/F is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their 71M6543FT-IGT/F devices; we pay more attention to the channels and quality of 71M6543FT-IGT/F products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of 71M6543FT-IGT/F chips? Including MAXIM original factory information, Energy Metering application, 71M6543FT-IGT/F pictures?
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Q: What is the process for returns or replacement of 71M6543FT-IGT/F?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 71M6543FTIGTF we delivered, we will accept the replacement or return of the 71M6543FT-IGT/F only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of 71M6543FT-IGT/F.
(3)The 71M6543FT-IGT/F is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
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