At 06.09 20/02/2004 -0800, you wrote:
>With a 2k load and 50pF you can get:
>Fmax=1/(tplh + tphl)
>For Fairchild DM74LS14 you get:
>best case - Fmax = 1/(8 + 10)nS = 55MHz
>worst case - Fmax = 1/(25 + 33)nS = 17.2MHz
>so you pick which one you like more.

Assuming it's for a clock buffer, driving it to its
max speed will produce a triangular waveform, not a
nice squarish one.

Is this going to affect reliability someway, somewhere,
sometimes?

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