This part is a kind of semiconductor called LM393.

Function of this product has Dual Differential Comparators.

Manufacturers : Wing Shing Computer Components

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Dual Differential Comparators LM393 General Description The LM393 consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current Features drain is independent of the magnitude of the power supply n Wide supply voltage. These comparators also have a unique characteris Voltage range: 2.0V to 36V tic in that the input common-mode voltage range includes ± 1.0V to ± 18V single or dual supplies: ground, even though operated from a single power supply n Very low supply current drain (0.4 mA) independent voltage. of supply volta [ ... ]

LM393 PDF Datasheet Download