71M6511

71M6511/71M6511H Single-Phase Energy Meter IC GENERAL DESCRIPTION The 71M6511 is a highly integrated SOC with an MPU core, RTC, flash, and LCD driver. Our Single Converter Technology® with a 22-bit deltasigma ADC, three analog inputs, digital temperature compensation, precision voltage reference, and 32-bit computation engine (CE) supports a wide range of single-phase metering applications with very few low cost external components. A 32kHz crystal time base for the entire system and internal battery backup support for RAM and RTC further reduce system cost. Maximum design flexibility is supported with multiple UARTs, I2C, a power fail comparator, a 5V LCD charge pump, up to 12 DIO pins and an insystem programmable flash. The device is offered in high (0.1%) and standard (0.5%) accuracy versions for multifunction residential/commercial meter applications requiring multiple voltage/current inputs and complex LCD or DIO configurations. A complete array of ICE and development tools, programming libraries and reference designs enable rapid development and certification of meters that meet most demanding worldwide electricity metering standards. CT/SHUNT LIVE NEUT LOAD POWER SUPPLY V or I AMR IR POWER FAULT 32 kHz CONVERTER IA VA IB VOLTAGE REF VREF VBIAS SERIAL PORTS TX RX SENSE RX DRIVE TX COMPARATOR V1 OSC/PLL XIN XOUT V3.3A V3.3D GNDA GNDD 5V BOOST TERIDIAN VDRV 71M6511 REGULATOR VBAT V2.5 TEMP SENSOR RAM FLASH LCD DRIVER DIO, PULSE VLCD COM0..3 SEG0..19 SEG 24.....