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26. The word “interfacing” as applied to digital electronics usually means:
(a) a conditioning circuit connected between a standard TTL NAND gate and a standard TTL OR gate
(b) a circuit connected between the driver and load to condition a signal so that it is compatible with the load
(c) any gate that is a TTL operational amplifier designed to condition signals between NMOS transistors
(d) any TTL circuit that is an input buffer stage
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555555555537. If all inputs to a TTL NAND gate are low, what is the ON, OFF condition of each transistor in the circuit? (a) Q1-ON, Q2-OFF, Q3-ON, Q4-OFF (b) Q1-ON, Q2-ON, Q3-OFF, Q4-OFF (c) Q1-OFF, Q2-OFF, Q3-ON, Q4-ON (d) Q1-OFF, Q2-ON, Q3-OFF, Q4-ON- 555555555558. ________ output levels would not be a valid LOW for a TTL gate. (a) 0.2 V (b) 0.3 V (c) 0.5 V (d) All of the above.
- 555555555546. What is the standard TTL noise margin? (a) 5.0 V (b) 0.0 V (c) 0.8 V (d) 0.4 V
- 555555555528. How many 74LSTTL logic gates can be driven from a 74TTL gate? (a) 10 (b) 20 (c) 200 (d) 400
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