50+ Top Logic Families Multiple Choice Questions with Answers
Which of the following is NOT a common logic family?
a) TTL
b) CMOS
c) ECL
d) LED
Answer: d) LED
Which logic family is known for its high speed and low power consumption?
a) TTL
b) CMOS
c) ECL
d) RTL
Answer: b) CMOS
ECL stands for:
a) Emitter-Coupled Logic
b) Emitter-Corrected Logic
c) Exclusive-OR Logic
d) Edge-Count Logic
Answer: a) Emitter-Coupled Logic
The main drawback of the TTL logic family is:
a) High power consumption
b) Slow speed
c) Limited fan-out
d) High component count
Answer: a) High power consumption
Which logic family uses transistors in a totem-pole configuration?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: a) TTL
CMOS stands for:
a) Complementary Metal-Oxide Semiconductor
b) Corrected Metal-Oxide Semiconductor
c) Computed Metal-Oxide Semiconductor
d) Capacitor Metal-Oxide Semiconductor
Answer: a) Complementary Metal-Oxide Semiconductor
The ECL logic family is commonly used in:
a) High-speed applications
b) Low-power applications
c) Medium-speed applications
d) All of the above
Answer: a) High-speed applications
Which logic family is known for its high noise immunity?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: b) CMOS
DTL stands for:
a) Diode-Transistor Logic
b) Direct-Transistor Logic
c) Diode-Totem Logic
d) Direct-Totem Logic
Answer: a) Diode-Transistor Logic
The output of the TTL logic family is:
a) Open-collector
b) Totem-pole
c) Tri-state
d) Open-drain
Answer: b) Totem-pole
Which logic family is commonly used in battery-operated devices due to its low power consumption?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: b) CMOS
The ECL logic family uses a power supply voltage of approximately:
a) 3.3 V
b) 5 V
c) 12 V
d) -5.2 V
Answer: d) -5.2 V
Which logic family is known for its high-speed capabilities but also high power dissipation?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: c) ECL
RTL stands for:
a) Resistor-Transistor Logic
b) Reverse-Transistor Logic
c) Resistor-Totem Logic
d) Reverse-Totem Logic
Answer: a) Resistor-Transistor Logic
The fan-out of a logic family refers to:
a) The number of inputs a gate can handle
b) The number of outputs a gate can handle
c) The number of gates that can be connected to the output of another gate
d) The power consumption of a gate
Answer: c) The number of gates that can be connected to the output of another gate
Which logic family is known for its compatibility with both TTL and CMOS?
a) ECL
b) I2L
c) DTL
d) HTL
Answer: b) I2L
I2L stands for:
a) Interfaced-Injection Logic
b) Integrated-Injection Logic
c) Interlocked-Injection Logic
d) Inverted-Injection Logic
Answer: b) Integrated-Injection Logic
The HTL logic family uses which type of transistor configuration?
a) Totem-pole
b) Open-collector
c) Tri-state
d) Open-drain
Answer: a) Totem-pole
Which logic family is known for its low speed but high noise immunity?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: d) DTL
Which logic family uses diodes for the input AND gate and transistors for the output OR gate?
a) RTL
b) ECL
c) DTL
d) HTL
Answer: a) RTL
The power supply voltage of the CMOS logic family is typically:
a) 3.3 V
b) 5 V
c) 12 V
d) -5.2 V
Answer: b) 5 V
Which logic family is commonly used in aerospace and military applications due to its ruggedness?
a) TTL
b) CMOS
c) ECL
d) DTL
Answer: a) TTL
The fan-in of a logic family refers to:
a) The number of inputs a gate can handle
b) The number of outputs a gate can handle
c) The number of gates that can be connected to the output of another gate
d) The power consumption of a gate
Answer: a) The number of inputs a gate can handle
Which logic family is known for its compatibility with both TTL and ECL?
a) CMOS
b) I2L
c) DTL
d) HTL
Answer: d) HTL
HTL stands for:
a) High-Thrust Logic
b) High-Temperature Logic
c) High-Threshold Logic
d) High-Transistor Logic
Answer: c) High-Threshold Logic
Which logic family is known for its compatibility with both CMOS and ECL?
a) TTL
b) I2L
c) DTL
d) HTL
Answer: b) I2L
The main advantage of the CMOS logic family is:
a) High speed
b) Low power consumption
c) High noise immunity
d) High component count
Answer: b) Low power consumption
Which logic family is known for its compatibility with both TTL and DTL?
a) CMOS
b) I2L
c) ECL
d) HTL
Answer: b) I2L
I2L logic family is commonly used in:
a) High-speed applications
b) Low-power applications
c) Medium-speed applications
d) All of the above
Answer: c) Medium-speed applications
The DTL logic family uses a power supply voltage of approximately:
a) 3.3 V
b) 5 V
c) 12 V
d) -5.2 V
Answer: b) 5 V