PPT Slide
7 – Sequential Logic Examples
Tri-state and multiplexing
When using tri-state logic
- (1) make sure never more than one "driver" for a wire at any one time (pulling high and low at the same time can severely damage circuits)
- (2) make sure to only use value on wire when its being driven (using a floating value may cause failures)
Using tri-state gates to implement an economical multiplexer
when Select is high Input1 is connected to F
when Select is low Input0 is connected to F
this is essentially a 2:1 mux