SN74AUC125: Typical Tpd value at 1.2V

shivaji magadum

Part Number: SN74AUC125

Tool/software:

Hello,

I plan to use "SN74AUC125" on my test board to drive a 300MHz clock, the part will operate at 1.2V. I am looking for the typical value of Tpd under -25deg + 1.2V, as the datasheet provides propogation delay ranging from 0.7 to 3.7ns. Also, is it allowed to short all outputs together to have different drive strengths of the output clock?

Thanks,

Shivaji M

1 month ago

0 Clemens Ladisch 1 month ago

Guru 310880 points

It should be about 1.5 ns.

It is allowed to connect multiple CMOS outputs together. But note that AUC outputs change their drive strength when switching and are already optimized for typical 50 Ω traces; see section 2.1 of Application of the Texas Instruments AUC Sub-1-V Little Logic Devices.

Logic

Logic forum

SN74AUC125: Typical Tpd value at 1.2V