Tri state devices, Electrical Engineering

Tri State Devices

Tri  State  devices have three  states logic 1  logic  0 and high  impedance. A tri state device ( Buffer/ Inverter) has three  lines output  enable as shown  in figure  when enable  line is  activated the tri state device functions the  same way as ordinary logic  device. When enable line  is disabled the logic device goes into the high  impedance state.  Tri state devices may be  active  high or active low. If  it is  active  low a bubble is drawn  in the symbol  with the enable  line as shown in figure and.

Posted Date: 4/4/2013 12:28:22 AM | Location : United States







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