This part is a kind of semiconductor called UTC339.

Function of this product has Quad Differential Comparator.

Manufacturers : Hangzhou Silan

Image and pinout :

Some of the text within the PDF file :

UTC339 QUAD DIFFERENTIAL COMPARATOR DESCRIPTION The UTC339 consists of four independent voltage comparators designed specifically to operate from a single power supply over a wide voltage range. LI NEAR I NTEGRATED CI RCUI T FEATURES *Single or dual supply operation *Wide operating supply range(Vcc=2V~36V) *Input common-mode voltage includes ground *Low supply current drain ICC=0.8mA(Typical) *Open collector outputs for wired and connection *Low input bias current Ibias=25nA(Typical) *Low output saturation voltage *Output compatible with TTL ,DTL, and CMOS logic system DIP-14 ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) Characteristic Supply Voltage Differential input voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature Symbol Vcc VIDiff) VI Pd Topr Tstg ±18 OR 3 [ ... ]

UTC339 PDF Datasheet Download