71M6542F-IGT/F Datasheet PDF - Maxim Integrated

●The 71M6542F-IGT/F is an energy meter IC in 100 pin LQFP package. This is 4th generation single phase metering SoC 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 22bit delta-sigma ADC, three or four analogue inputs, digital temperature compensation, precision voltage reference and 32bit CE supports a wide range of metering applications with very few external components. Device support optional interfaces to 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, 64KB flash, 5KB RAM memory that can be programmed in the field with code and/or data during meter operation and ability to drive up to six LCD segments per SEG driver pin. Used at powerful metering platform for residential meters.

● Supply voltage range is 3V to 3.6V

● Operating temperature range from -40°C to 85°C & full speed MPU clock in brownout mode

● 0.1% typical accuracy over 2000:1 current range, exceeds IEC 62053/ANSI C12.20 standards

● Four quadrant metering, built-in flash security & SPI interface for flash program capability

● Up to four pulse outputs with pulse count, 8bit MPU (80515), up to 5 MIPS

● 5V LCD driver with DAC, up to 51 multifunction DIO pins & hardware watchdog timer (WDT)

● 46Hz-64Hz line frequency range with the same calibration

● Two UARTs for IR and AMR, IR LED driver with modulation & 1µA in sleep mode

● Power management extends battery life during power outages

● Wake-up on pin events and wake-on timer