71M6543HT Datasheet | Maxim Integrated

Description The 71M6543FT/71M6543HT/71M6543GT/71M6543GHT (71M654x T) are 4th-generation three-phase metering systems-on-chips (So Cs) with a 5MHz, 8051-patible MPU core, low-power RTC with digital temperature pensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma ADC, seven analog inputs, digital temperature pensation, precision voltage reference, and a 32-bit putation engine (CE) support a wide range of metering applications with very few external ponents. The 71M654x T devices support optional interfaces to the Maxim Integrated 71M6x03 series of isolated sensors offering BOM cost reduction, immunity to magnetic tamper, and enhanced reliability. Other features include an SPI interface, advanced power management, ultra-lowpower operation in active and battery modes, 5KB shared RAM, and 64KB/128KB flash memory that can be programmed 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 bined with differential inputs offer a powerful platform for residential meters. A plete 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. The 71M654x T family operates over the industrial temperature range and es in a 100-pin lead(Pb)-free LQFP package. Applications - Three-Phase Residential, mercial, 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 - So C 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...