Are normal buffers sized for equal rise and fall times

identical · Apr 15, 2017

If they are sized for equal fall and rise times then why are clock buffers made seperately (Sized for equal rise and fall times). If they aren't sized for equal fall and rise times then why do we need asymmetrical fall and rise times for a normal inverter or buffer.

ThisIsNotSam · Apr 15, 2017

identical said:
If they are sized for equal fall and rise times then why are clock buffers made seperately (Sized for equal rise and fall times). If they aren't sized for equal fall and rise times then why do we need asymmetrical fall and rise times for a normal inverter or buffer.

I have seen libraries with all variations you can think of, both for clock and for regular signals.

identical · Apr 15, 2017

ThisIsNotSam said:
I have seen libraries with all variations you can think of, both for clock and for regular signals.

On average, what is the key difference between the two apart from drive strength.

oratie · Apr 16, 2017

Regular buffers are trade-off between minimal delay, equal rise/fall delay/transition, minimal power, cell area.
Clock buffers optimized more for equal rise/fall delay/transition (others are less priority).

Are normal buffers sized for equal rise and fall times

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Are normal buffers sized for equal rise and fall times

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