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SN74LVC74A: Q output state after power up.

SYLVAIN BOURIOT
Intellectual 430 points

Part Number: SN74LVC7Hello,

Could I use an RC circuit on the /CLR pin?

I saw that in the datasheet that the input transition rise and fall time should be in 10ns/V. But I dont understand what it  will be the issue on this asynchronous pin.

Moreover, this "slow transition" on /CLR pin will only occurs at each powerup.

if  not, Do you have you a solution to be sure that Q output is at logic level "0" after power up.(I can't use  SN74HCS74).

 

Best Regards.

Sylvain