Overview
The 71M6541D-IGT/F is a fourth-generation single-phase metering System-on-Chip (SoC) developed by Analog Devices Inc./Maxim Integrated. This device is part of the 71M654x family and is designed for advanced energy metering applications. It features a 5MHz 8051-compatible MPU core, low-power Real-Time Clock (RTC) with digital temperature compensation, flash memory, and an LCD driver. The SoC integrates various components to support a wide range of metering functions with minimal external components.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 64-pin LQFP |
| Temperature Range | -40°C to 85°C |
| MPU Core | 5MHz 8051-compatible |
| Flash Memory | 32KB (71M6541D), 64KB (71M6541F), 128KB (71M6541G) |
| RAM | 3KB (71M6541D), 5KB (71M6541F/G) |
| Analog Inputs | Three or four analog inputs |
| ADC Resolution | 22-bit delta-sigma ADC |
| Current Range Accuracy | 0.1% typical over 2000:1 current range |
| Line Frequency Range | 46-64Hz |
| Phase Compensation | ±10° |
| Compute Engine | 32-bit computation engine |
| Interfaces | SPI, I2C or µWire, UARTs for IR and AMR |
| Power Modes | Brownout Mode (BRN), LCD Mode (LCD), Sleep Mode (SLP) |
| Power Consumption in Sleep Mode | 1µA |
Key Features
- SoC integration with Single Converter Technology® reducing BOM cost without sacrificing performance.
- Exceeds IEC 62053/ANSI C12.20 standards for metering accuracy.
- Four-quadrant metering capability.
- Independent 32-bit compute engine for advanced calculations.
- Built-in flash security and SPI interface for flash program capability.
- Up to four pulse outputs with pulse count and high-speed Wh/VARh pulse outputs.
- Digital temperature compensation improving system performance.
- Metrology compensation and accurate RTC for Time-of-Use (TOU) functions.
- Power management features extending battery life during power outages.
- Wake-up on pin events and wake-on timer.
- LCD driver supporting up to 6 commons and 56 pins.
Applications
The 71M6541D-IGT/F is designed for various energy metering applications, including single-phase smart meters, advanced metering infrastructure (AMI), and other metering systems that require high accuracy and reliability. It is particularly useful in applications where reduced Bill of Materials (BOM) cost and immunity to magnetic tamper are crucial.
Q & A
- What is the 71M6541D-IGT/F?
The 71M6541D-IGT/F is a fourth-generation single-phase metering SoC developed by Analog Devices Inc./Maxim Integrated.
- What is the package type of the 71M6541D-IGT/F?
The device comes in a 64-pin LQFP package.
- What is the temperature range of the 71M6541D-IGT/F?
The device operates over a temperature range of -40°C to 85°C.
- What is the resolution of the ADC in the 71M6541D-IGT/F?
The device features a 22-bit delta-sigma ADC.
- What are the key interfaces supported by the 71M6541D-IGT/F?
The device supports SPI, I2C or µWire, and UARTs for IR and AMR.
- What is the power consumption in sleep mode?
The device consumes 1µA in sleep mode.
- Does the 71M6541D-IGT/F support multiple power modes?
Yes, it supports Brownout Mode (BRN), LCD Mode (LCD), and Sleep Mode (SLP).
- What are the key applications of the 71M6541D-IGT/F?
The device is used in single-phase smart meters, advanced metering infrastructure (AMI), and other metering systems requiring high accuracy and reliability.
- Does the 71M6541D-IGT/F meet any specific industry standards?
Yes, it exceeds IEC 62053/ANSI C12.20 standards for metering accuracy.
- What is the typical accuracy of the 71M6541D-IGT/F over its current range?
The device has a typical accuracy of 0.1% over a 2000:1 current range.
