How can we properly define active high and low.
Is it just inputs that are active high and low
or a gate or a complete circuit can also be called as active high or active low.
If just first statement is true than it is simple.we can say that the input which gives high output when the input is low is called active low input and that one which gives high output at high input is called active high.
But if the 2nd statement is true as i've heard than it becomes complicated (for me).
As i've heard that NAND is active low gate and NOR is active high gate.How can we certainly say this.cuz if it is so how can we justify the 0 0 combination in truth table cuz both gates give high output when both inputs are low.
And also if a cicuit can be active high and low what will an active high flip flop with two asynchoronous inputs be called.(active high or low)
Is it just inputs that are active high and low
or a gate or a complete circuit can also be called as active high or active low.
If just first statement is true than it is simple.we can say that the input which gives high output when the input is low is called active low input and that one which gives high output at high input is called active high.
But if the 2nd statement is true as i've heard than it becomes complicated (for me).
As i've heard that NAND is active low gate and NOR is active high gate.How can we certainly say this.cuz if it is so how can we justify the 0 0 combination in truth table cuz both gates give high output when both inputs are low.
And also if a cicuit can be active high and low what will an active high flip flop with two asynchoronous inputs be called.(active high or low)