Energy Meter ICs

Part Number	Status
71M6543F	Active: In Production.
71M6543G	Active: In Production.
71M6543GH	Future Product
71M6543H	Future Product

The 71M6543F/71M6543H are Teridian's 4th-generation polyphase metering system-on-chips (SoCs) with a 5MHz, 8051-compatible MPU core, low-power real-time clock (RTC) with digital temperature compensation, flash memory, and LCD driver. Our Single Converter Technology® with a 22-bit delta-sigma analog-to-digital converter (ADC), three or four analog inputs, digital temperature compensation, precision voltage reference, and a 32-bit computation engine (CE) supports a wide range of metering applications with very few external components.

The 71M6543F/71M6543H support optional interfaces to the 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, 3/5KB shared RAM, and 32/64KB of 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 combined with differential inputs offer a powerful metering platform for residential meters.

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Errata 71M6543F 71M6543B02.pdf Errata 71M6543G 71M6543GA01.pdf