WorksheetsTTL Logic Circuits Quiz
Total questions: 10
Worksheet time: 5mins
What does TTL stand for in digital logic circuits?
Transistor Transistor Logic
Transistor Transmission Logic
Transistor Timing Logic
Transistor Technology Logic
What is the function of diodes D2 and D3 in the standard TTL NAND gate circuit?
To limit negative input voltages
To amplify the output signal
To increase the speed of the circuit
To provide power to the transistors
Why are the two emitters of transistor Q1 in the standard TTL NAND gate significant?
They serve as the two inputs of the NAND gate
They increase the output voltage
They reduce power consumption
They act as output terminals
When both inputs are in the logic HIGH state in a TTL circuit, which transistor is switched ON to produce a logic LOW at the output?
Q1
Q2
Q3
Q4
What is the typical value of the input current IIH in the HIGH state for a TTL logic circuit?
16 mA
1.6 mA
40 μA
400 μA
When both inputs are in the logic LOW state, what is the minimum guaranteed output voltage VOH for a TTL circuit?
0.4 V
2.4 V
5 V
1.6 V
What is the main aim of the experiment described in the document?
To study the input and output of TTL gates.
To design a microprocessor.
To analyze the speed of logic circuits.
To measure the resistance of transistors.
If both inputs of a 2-input TTL NAND gate are held at logic '1', what will be the state of the base-emitter junctions of T1?
They will be reversed-biased.
They will be forward-biased.
They will be short-circuited.
They will be open-circuited.
What is the threshold voltage (Vth) in logic circuits?
The voltage which, when applied to all the inputs of a gate, produces the same voltage at the output.
The maximum voltage a transistor can handle.
The voltage at which a diode starts conducting.
The voltage required to power the circuit.
How is logical '1' noise immunity defined?
Δ1 = V(1) – VTH
Δ1 = VTH – V(1)
Δ1 = V(0) + VTH
Δ1 = V(1) + VTH
