This part is a kind of semiconductor called MC1455.

Function of this product has Timing Circuits.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

Other Analog Circuits In Brief . . . Other analog circuits are provided for special applications with both bipolar and CMOS technologies. These circuits range from the industry standard analog timing circuits and multipliers to specialized CMOS smoke detectors. These products provide key functions in a wide range of applications, including data transmission, commercial smoke detectors, and various industrial controls. Timing Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Singles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Duals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multipliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Linear Four-Quadrant Multipliers [ ... ]

MC1455 PDF Datasheet Download