This part is a kind of semiconductor called 27L2C.

Function of this product has PRECISION VERY LOW POWER CMOS DUAL OPERATIONAL AMPLIFIERS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

TS27L2C,I,M PRECISION VERY LOW POWER CMOS DUAL OPERATIONAL AMPLIFIERS s VERY LOW POWER CONSUMPTION : 10µA/op s OUTPUT VOLTAGE CAN SWING TO GROUND s EXCELLENT PHASE MARGIN ON CAPACITIVE LOADS s STABLE AND LOW OFFSET VOLTAGE s THREE INPUT OFFSET VOLTAGE SELECTIONS DESCRIPTION These devices are low cost, low power dual operational amplifiers designed to operate with single or dual supplies. These operational amplifiers use the ST silicon gate CMOS process allowing an excellent consumption-speed ratio. These series are ideally suited for low consumption applications. Three power consumptions are available allowing to have always the best consumption-speed ratio: N DIP8 (Plastic Package) D SO8 (Plastic Micropackage) P TSSOP8 (Thin Shrink Small Outline Package) u IC [ ... ]

27L2C PDF Datasheet Download