Hi all,
I'm trying to figure out the behavior of a XOR logic gate during its switching. I have selected this (http://www.ti.com/lit/ds/symlink/sn74ahc1g86.pdf) XOR gate for my project. I read in the datasheet that VIH = 2.1V and VIL = 0.9V (@vdd = 3V). I know I'm not supposed to operate statically this device in the undefined voltage region (between 0.9V and 2.1V) but what happens during the switching of one input?
I have one of the inputs with a fast falling time (~100ns) while the other is supposed to be slower (coming from an RC discharge). What happens to the output when one of the input is @0V while the other transitions from 3.3V to 0V (it takes some hundreds of us to transition from 2.1V to 0.9V)?
I'm trying to figure out the behavior of a XOR logic gate during its switching. I have selected this (http://www.ti.com/lit/ds/symlink/sn74ahc1g86.pdf) XOR gate for my project. I read in the datasheet that VIH = 2.1V and VIL = 0.9V (@vdd = 3V). I know I'm not supposed to operate statically this device in the undefined voltage region (between 0.9V and 2.1V) but what happens during the switching of one input?
I have one of the inputs with a fast falling time (~100ns) while the other is supposed to be slower (coming from an RC discharge). What happens to the output when one of the input is @0V while the other transitions from 3.3V to 0V (it takes some hundreds of us to transition from 2.1V to 0.9V)?