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.