Hi everyone,
I am trying to use a 555 to drive a 74LS107 JK flip flop.
I am using a 36k and 18k resistor, and a .1uf capicator. The 555 is producing the expected clock at a 75% duty cycle.
However, the Q output of the 74LS107 is following the output of the clock, instead of only flipping on the negative edge. I have the J, K, and CLR lines all tied to positive.
Pictures of the project and the scope are attached.
I am a newbie at this, just trying out some projects for personal enjoyment, so I suspect I've done something dumb. But I have tried replacing chips, looking for wiring faults, and am now out of ideas.
Thanks for any help!
I am trying to use a 555 to drive a 74LS107 JK flip flop.
I am using a 36k and 18k resistor, and a .1uf capicator. The 555 is producing the expected clock at a 75% duty cycle.
However, the Q output of the 74LS107 is following the output of the clock, instead of only flipping on the negative edge. I have the J, K, and CLR lines all tied to positive.
Pictures of the project and the scope are attached.
I am a newbie at this, just trying out some projects for personal enjoyment, so I suspect I've done something dumb. But I have tried replacing chips, looking for wiring faults, and am now out of ideas.
Thanks for any help!
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