DM74LS109A Datasheet - Fairchild Semiconductor
MFG CO.

Fairchild Semiconductor
General Description
This device contains two independent positive-edge-triggered J-K flip-flops with complementary outputs. The J and K data is accepted by the flip-flop on the rising edge of the clock pulse. The triggering occurs at a voltage level and is not directly related to the transition time of the rising edge of the clock. The data on the J and K inputs may be changed while the clock is HIGH or LOW as long as setup and hold times are not violated. A low logic level on the preset or clear inputs will set or reset the outputs regard less of the logic levels of the other inputs.
Part Name
Description
View
MFG CO.
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Fairchild Semiconductor
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Fairchild Semiconductor
DUAL J-K FLIP FLOP WITH PRESET AND CLEAR
STMicroelectronics
DUAL J-K FLIP FLOP WITH PRESET AND CLEAR ( Rev : 1992 )
STMicroelectronics