WORKING OF CIRCUIT
ADVANTAGES & DISADVANTAGES
Understand the concept of DIGITAL IC TESTER
FOR UNIVERSAL GATES
Understand the working of DIGITAL IC TESTER.
Use boolean expression to realize logic gates
Build simple combinational circuit
• It is a Digital ICTester. An Integrated Circuit tester (IC tester) is
used to test Integrated Circuits (ICs). This IC tester can be used
to test a wide variety of IC’s which includes simple logic gates and
also sequential and combinational ICs like flip-flops, counters, shift
registers etc. It is portable and easy to use.
It is a integrated circuit tester (IC
tester) is used to test integrated circuits
We can easily test any digital IC using
this kind of an IC tester.
This IC tester is constructed using
UNIVERSALGATES(NAND & NOR) with
a switch and a LED unit.
It can test digital IC’s having a ON/OFF
A LOW (0) OUTPUT RESULTS ONLY IF ALL THE INPUTS TO
THE GATE ARE HIGH (1); IF ANY INPUT IS LOW (0), A HIGH (1)
OUTPUT RESULTS. A NAND GATE IS MADE USING TRANSISTORS
AND JUNCTION DIODES. THE NAND GATE IS SIGNIFICANT
BECAUSE ANY BOOLEAN FUNCTION CAN BE IMPLEMENTED BY
USING A COMBINATION OF NAND GATES.
THE NOR GATE IS A DIGITAL LOGIC GATE THAT IMPLEMENTS
LOGICAL NOR. A HIGH OUTPUT (1) RESULTS IF BOTH THE INPUTS
TO THE GATE ARE LOW (0), IF ONE OR BOTH INPUT IS HIGH (1), A
LOW OUTPUT (0) RESULTS. NOR IS THE RESULT OF THE NEGATION
OF THE OR OPERATOR.
It will give the same
the NOR gate gives
the advantage that it needs
little space, less material
and is less complicated. At
least one input must be
active to stop the output
• Cost: NAND is cost-effective
per byte and has a high storage
capacity for its physical size. -
Endurance: NAND cells
eventually wear out as their
A NAND chip lasts until it
reaches its write-cycle limit,
after which it will no longer be
able to store new data
In arithmetic logic unit of processors
Increment and decrement operators
Use in multiplexers
Computer memory & registers
• Basic circuit knowledge :- electronic circuit desire can become can become a very
complex topic especially where large installation are concerned. Become of this
basic circuit knowledge is very important
• Design pcb:-
Basic understanding of pcb.
Knowledge of fundamentals in basic electronic to design pcb for circuit like
digital ic tester circuit. etc.
we understand that how to done etchingon plane pcb carefully and perfectly.
Improved technical ideas and knowledge related fm radio circuit.
Now I can able to do sholdering of components on pcb after this work is done.
Develop mounting the components on pcb with correct terminal of them.