This part is a kind of semiconductor called 74LS112A.

Function of this product has DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP The SN54 / 74LS112A dual JK flip-flop features individual J, K, clock, and asynchronous set and clear inputs to each flip-flop. When the clock goes HIGH, the inputs are enabled and data will be accepted. The logic level of the J and K inputs may be allowed to change when the clock pulse is HIGH and the bistable will perform according to the truth table as long as minimum set-up and hold time are observed. Input data is transferred to the outputs on the negative-going edge of the clock pulse. SN54/74LS112A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP LOW POWER SCHOTTKY LOGIC DIAGRAM (Each Flip-Flop) Q 5(9) CLEAR (CD) 15(14) J 3(11) 1(13) CLOCK (CP) MODE SELECT TRUTH TABLE OPERATING MODE Set Reset (Clear) *Undetermined Toggle Load “0” (Res [ ... ]

74LS112A PDF Datasheet Download