This part is a kind of semiconductor called ADE7768.

Function of this product has Energy Metering IC.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

Energy Metering IC with Integrated Oscillator and Positive Power Accumulation ADE7768 FEATURES On-chip oscillator as clock source High accuracy, supports 50 Hz/60 Hz IEC62053-21 Less than 0.1% error over a dynamic range of 500 to 1 Supplies positive-only average real power on frequency outputs F1 and F2 High frequency output CF calibrates and supplies instantaneous, positive-only real power Logic output REVP indicates potential miswiring or negative power Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2) Proprietary ADCs and DSPs provide high accuracy over large variations in environmental conditions and time On-chip power supply monitoring On-chip creep protection (no-load threshold) On-chip reference 2.45 V (20 ppm/°C typical) with e [ ... ]

ADE7768 PDF Datasheet Download