Electrical Engineering Asked by Sap on December 31, 2020
I am designing a circuit which will buffer 3.3V input from Raspberry pi using 74ABT244D,623 and there will be 4 output chains on the PCB. Each chain will be connected through FRC to a second PCB with an immediate buffer of 74AHC245. But one data line will be shorted into 4 to get 4 outputs.
So from 1 single output of 74ABT244D,623, can it drive 4 inputs to 4 74AHC245 each (16 total) ?
What does your datasheet say?
-32mA (hi) 64 mA (Lo) drive
+/-1 uA load + 10pf (Ic=C dV/dt) per transition
What is load capacitance? And frequency? To determine Zc
So far so good, what f ? low? No problem
Answered by Tony Stewart Sunnyskyguy EE75 on December 31, 2020
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