This part is a kind of semiconductor called LM393PT.

Function of this product has Comparators.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Datasheet SIGNATURE SERIES Comparators LM393xxx LM2903xx LM339xx LM2901xx General Description LM393xxx, LM2903xx, LM339xx, and LM2901xx monolithic ICs integrate two or four independent comparator circuits on a single chip and feature high gain, low power consumption, and an operating voltage range from 2V to 36V (single power supply). Features  Operable with a Single Power Supply  Wide Operating Supply Voltage Range  Input / Output Ground Sense  Low Supply Current  Open Collector  Wide Temperature Range Application  Consumer Electronics  Current Sense Application  Battery Monitor  Multivibrator Key Specifications  Operating Supply Voltage: Single Supply Dual Supply  Supply Current: LM393xxx/LM2903xx LM339xx/LM2901xx  Input Bias Current:  Input O [ ... ]

LM393PT PDF Datasheet Download