71M6543H Datasheet | Teridian Semiconductor

DESCRIPTION The 71M6543F, 71M6543H, 71M6543G, and 71M6543GH are Teridian’s 4th-generation polyphase metering systems-on-chips (So Cs) with a 5MHz 8051-patible MPU core, low-power realtime clock (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 metrology temperature pensation, precision voltage reference, and a 32bit putation engine (CE) supports a wide range of metering applications with very few external ponents. 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 bined with differential inputs offer a powerful metering platform for mercial and industrial meters with up to class 0.2 accuracy (71M6543H, 71M6543GH). 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. C NEUTRAL B A Features - 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 pensation: Metrology pensation Accurate RTC for TOU Functions with Automatic Temperature pensation for Crystal in...