This part is a kind of semiconductor called 74LS32.

Function of this product has 8-BIT SHIFT REGISTERS WITH SIGN EXTEND.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

SN54/74LS322A 8-BIT SHIFT REGISTERS WITH SIGN EXTEND These 8-bit shift registers have multiplexed input/output data ports to accomplish full 8-bit data handling in a single 20-pin package. Serial data may enter the shift-right register through either D0 or D1 inputs as selected by the data select pin. A serial output is also provided. Synchronous parallel loading is achieved by taking the register enable and the S / P inputs low. This places the three-state input / output ports in the data input mode. Data is entered on the low-to-high clock transition. The data extend function repeats the sign in the QA flip-flop during shifting. An overriding clear input clears the internal registers when taken low whether the outputs are enabled or off. The output enable does not affect synchronous oper [ ... ]

74LS32 PDF Datasheet Download