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WorksheetsDigital Logic Families Quiz
Total questions: 20
Worksheet time: 10mins
Which of the following is the oldest digital logic family?
CMOS
TTL
RTL
ECL
In RTL, the output of a NOR gate is HIGH when:
Any input is HIGH
All inputs are LOW
Only one input is HIGH
All inputs are HIGH
Which logic family is non-saturated and very fast?
Standard TTL
Schottky TTL
DTL
RTL
Fan-out of a logic gate refers to:
Maximum number of gates that can be connected to a single output
Voltage level of logic HIGH
Current flowing through the base of transistor
Time it takes to switch from 0 to 1
In series transistors in RTL, the configuration implements which logic function?
NOR
AND
OR
NAND
Which of the following families uses diodes and transistors?
RTL
DTL
TTL
CMOS
CMOS logic has the advantage of:
High power consumption
Low noise immunity
Very low power consumption
Slow switching
Which of the following families has saturated transistors?
ECL
Schottky TTL
RTL
None of the above
In ECL, why are the transistors not fully saturated?
To reduce power consumption
To increase switching speed
To simplify wiring
To increase fan-out
What is the basic advantage of TTL over RTL?
Lower speed
Lower power
Higher speed
Uses diodes for AND
DTL replaced RTL in many applications because it was faster.
True
False
An RTL NOR gate output is HIGH if at least one input is HIGH.
True
False
Fan-out depends on output current and input current of the connected gates.
True
False
I²L is a low-power saturated logic family.
True
False
CMOS logic uses PMOS and NMOS transistors in a complementary arrangement.
True
False
In a 3-input RTL NOR gate, the output is HIGH only if all inputs are (a) .
The saturation of a transistor in RTL ensures VO is pulled close to (a) .
Schottky TTL prevents transistor saturation to improve (a) .
The maximum number of gates a single output can drive is called (a) .
Series connection of transistors in RTL implements (a) logic.
