So I'm planning on using an AND gate to handle limit switches on a motor application. Sometimes I'll be using steppers, and other times I'll be using DC motors - and therefor using PWM.
I have no pins available on the arduino.
The AND gate I'm thinking of using is the TI sn74hct08 - a quad gate that has a switch time of 30 ns, and a capacitance of 20pF.
Would that impact PWM performance on those pins that go through the AND gate? If so, is there a way to handle non-software based switching of the state of the driving pins?