71M6541D meter equivalent, energy meter.
The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G (71M654x) are 4th-generation single-phase metering SoCs with a 5MHz 8051compatible MPU core, low-power RTC with digital .
with very few external components.
The 71M6541/2 devices support optional interfaces to the 71M6x01 series of isolated s.
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