Advantages & disadvantages of wired-and connection TTL gates, Computer Engineering

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What are advantages and disadvantages of TTL gates design with Wired-AND connection ?

Ans.

Advantages and disadvantages

  • In this IC added logic is performed without extra hardware.
  • There is an effectual reduction in the fan out of the gate.
  • In the wired- AND link speed of operation rises.
  • Power dissipation into low output state in P(O) rises due to reduction in effective collector resistor.
  • Current dissipation in logic 0 state will rises while two TTL gates with passive pull ups are ANDed through wired logic.
  • The TTL fates along with missing pull up circuit at the collector are also termed as open collector gates. These are finer for the wired connections.

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