delabs circuits
Electronic Engineering Schematics
The XOR gate - Digital Logic gates
The Exclusive OR gate or EX-OR gate is useful as a controlled NOT gate, if one input is a control signal the EX-OR gate becomes either a buffer or NOT gate for the other input according to control.This feature is used in driving LCD displays. The CD40xx CMOS
family can work at even 3V-9V-12V DC and consume low power.
The speed is not as fast as 74xx TTL family. It is good for
simple portable battery powered circuits. The 74HCTxx series
is good for low power and high speed but will work at 5V. When
you have problems interfacing CMOS and TTL use 74HCTxx family.
RS Latch Erroneously setting by Itself
XOR Gate Simulation
This gate EX-ORs the two inputs A and B, The Output is high only if either A or B is high, output goes low if both inputs are high or low. There may be a EX-OR gate with many inputs, if the number of inputs that are high is a odd number then output will be high, for even number of high inputs output will be low. You could also make a Special XOR or XOR+ in CPLD where many inputs are present, only one goes high the output goes high, any other combination output is low.
This page requires images and javascript to be enabled to try out the demo of the gates below.
| |
A
|
|
Q
|
||||
|
|
 |
 |
||||
| |
B | |
|
Toggle the red buttons above to apply a 'high' or 'low' to inputs A and B and watch the output Q.
Truth table
| A | B | Q |
| 0 |
0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 |
1 | 0 |
Interactive Digital Logic Gates Tutor Widget
Interactive Tutor for Learning Digital Logic, Like NOT, AND,
OR and XOR.
BCD
Thumbwheel to Analog
These Gadgets helps beginners learn some digital circuit
concepts. The Digital Logic is Studied by operating Switches
and observing LEDs on a Virtual Breadboard. Lead Free
Screenshot
The Gate is a digital component that is used to compute an
output for certain inputs, the inputs and outputs have two
states high-1 and low- 0. Let us assume high is 5V and low is
0V (like in CMOS). On a high level the LED will light up and
on a low level the LED is off. Now let us see what Logic
means.
...
...
...
...
...
delabs Technologies
30th Aug 2020
...
The documents, software, tools and links are provided to enhance the ability of an electronics student, hobbyist or professional by sharing information. The information, links etc. should be used by the website visitor, at his or her own risk and responsibility. There may be concept, design and link errors in the pages.
Creative Work, ideas and documents of delabs can be used for Product Design and Development by R&D Engineers, Hobbyists, Students and even firms for creating useful products. These cannot be used for reprint, replication or publishing online or offline.