Other Parts Discussed in Thread: SN74HCS02, SN74LVC1G02, SN74HCS04, SN74LVC1G04
Our customer has this question regarding the SN74HCS74:
The function table shows that if the CLR and PRESET pins are both active, both outputs will have a HIGH state
Datasheet says this condition is unstable, does that mean as soon as the state of one input changes it will go back to operating normally?
To be more specific, the preset pin will be held low, and I want the Q bar output to basically invert the signal at the reset input.
which is a normally high signal that momentary swings low at the end of every period
I want to understand this unstable condition mentioned in the datasheet
it says when both CLR and PRESET inputs are active (low), the output of both Q and Q bar is high So I want to have PRESET input tied to ground, and have the Q bar output basically invert the signal at the CLR input.
It should effectively act like a NOR gate right? a nor gate outputs a low for every condition except both inputs low
I just need to know if the flip flop will go back to behaving normally as soon as the CLR input is inactive
Thank you for your help.