71M6543GT - Poly-phase 80515 SoCs


  • Up to seven sensor inputs with optional isolated sensor interfaces
  • 80515 MPU with up to 128KB Flash and 5KB RAM
  • RTC, LCD Driver, SPI, I2C, and up to 51 GPIO
  • 64-pin and 100-pin LQFP options


The 71M654xT are 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with improved temperature compensation, flash memory, and LCD driver. Proven Single Converter Technology® with a 22-bit delta-sigma ADC, multiple 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 71M6543T provides seven sensor inputs and offers opptional support for the 71M6k 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 (71M6543FT) or 128KB (71M6543GT) of flash memory, which can be programmed with code and/or data during meter operation.
A complete 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.  Contact support.metering@silergy.com to request additional information, check availability, or obtain copies of data sheets for earlier non-T versions of the 71M654x.


Residential, Commercial, and Industrial Energy Meters

High-End Residential Meters, AMR/AMI, and TOU