[sdiy] Issue with CD4024 Ripple Counter

Tim Stinchcombe tim102 at timstinchcombe.co.uk
Sat Sep 18 16:23:36 CEST 2021


> The 4024 already has schmitt-trigger input. (Not on the reset line
though.)
> Datasheet says unlimited rise/fall time is allowed.

I'd be a little hesitant to suggest that this is so for _all_ makes of
CD4024 chips - on this Fairchild datasheet the maximum 'input rise and fall
times' given suggest there is a limit that one is recommended to not exceed:

https://media.digikey.com/pdf/Data%20Sheets/Fairchild%20PDFs/CD4024BC.pdf

Tim
__________________________________________________________
Tim Stinchcombe 

Cheltenham, Glos, UK
email: tim102 at timstinchcombe.co.uk
www.timstinchcombe.co.uk






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