This part is a kind of semiconductor called 74HC74AN.
Function of this product has Dual D-Type Flip-Flop.
Manufacturers : Fairchild Semiconductor
Image and pinout :

Some of the text within the PDF file :
www.DataSheet.co.kr MM74HC74A Dual D-Type Flip-Flop with Preset and Clear September 1983 Revised January 2005 MM74HC74A Dual D-Type Flip-Flop with Preset and Clear General Description The MM74HC74A utilizes advanced silicon-gate CMOS technology to achieve operating speeds similar to the equivalent LS-TTL part. It possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, along with the ability to drive 10 LS-TTL loads. This flip-flop has independent data, preset, clear, and clock inputs and Q and Q outputs. The logic level present at the data input is transferred to the output during the positivegoing transition of the clock pulse. Preset and clear are independent of the clock and accomplished by a low level at the appropriate input. The 74HC logic [ ... ]
74HC74AN PDF Datasheet Download
