1
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
The circuit diagram of a standard TTL NOT gate is shown in the figure. When $${V_i}$$= 2.5V, the modes of operation of the transistors will be:
![GATE ECE 2007 Digital Circuits - Logic Families Question 2 English](https://gateclass.cdn.examgoal.net/examside/questions/605f792127b171a0bcdc12c0cf8c1e72095af5acc958bb865725d5c6adf5d22e.jpg)
2
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
The DTL, TTL, ECL and CMOS families of digital ICs are compared in the following 4 columns
![GATE ECE 2003 Digital Circuits - Logic Families Question 4 English](https://gateclass.cdn.examgoal.net/examside/questions/84e2f6ee47c341de64ea3711e6685706f1334a3973755cb944737cd95df0528e.jpg)
![GATE ECE 2003 Digital Circuits - Logic Families Question 4 English](https://gateclass.cdn.examgoal.net/examside/questions/84e2f6ee47c341de64ea3711e6685706f1334a3973755cb944737cd95df0528e.jpg)
3
GATE ECE 1994
True or False
+2
-0
In the output stage of a standard TTL, we have a diode between the emitter of the pull up transistor and the collector of the pull-down transistor. The purpose of this diode is to isolate the output node from the power supply $${V_{cc}}$$.
4
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
Given that for a logic family,
$${V_{OH}}$$ is the minimum output high-level voltage
$${V_{OL}}$$ is the minimum output low-level voltage
$${V_{IH}}$$ is the minimum output high-level voltage and
$${V_{IL}}$$ is the minimum output low-level voltage.
The correct relationship is:
Questions Asked from Logic Families (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics