CD4051,74HC244,74hc574 they are all 3-states, and they are using to input and output.is there any way i can control my output to 3 states of digital io
- high state
- lo state
- open state
most of the ics i looked cannot be controlled individually for open state or high impedance state.
Control bit by bit is too expensive, but you can send the data to the inputs of 74HC574, and using /OE to control that you want to output or in tri-states, and send the clock to cp to transfer all datas to the output side, so you can change each bit you want, and the 74HC244 is input from external, you also can do the same thing that you can input for each bit, you may have some mistake for the conception or I can't catch your thought.Tristate outputs cannot be individually set.. means either all outputs are in tristate or none..
.. is what i understand.
if i am wrong, please correct me.
let me know if there is any device available which can do 3 states.
thanks,
jis
by Duane Benson
by Jake Hertz
by Jake Hertz
by Duane Benson