This part is a kind of semiconductor called LF353.

Function of this product has Amplifiers and Comparators.

Manufacturers : Motorola Inc

Image and pinout :

Some of the text within the PDF file :

Amplifiers and Comparators In Brief . . . For over two decades, Motorola has continually refined and updated integrated circuit technologies, analog circuit design techniques and processes in response to the needs of the marketplace. The enhanced performance of newer operational amplifiers and comparators has come through innovative application of these technologies, designs and processes. Some early designs are still available but are giving way to the new, higher performance operational amplifier and comparator circuits. Motorola has pioneered in JFET inputs, low temperature coefficient input stages, Miller loop compensation, all NPN output stages, dual–doublet frequency compensation and analog “in–the–package” trimming of resistors to produce superior high performance operati [ ... ]

LF353 PDF Datasheet Download