Digital IC Tester
by Ranjith | November 20th, 2008.An Integrated Circuit tester (IC tester) is used to test Integrated Circuits (ICs). We can easily test any digital IC using this kind of an IC tester. For testing an IC, we need to use different hardware circuits for different ICs; like we need a particular kind of tester for testing a logic gate and another for testing flip flops or shift registers which involves more complication and time involved will also be more. So here’s an IC tester to overcome this problem. Unlike other IC testers, this is more reliable and easier since we don’t need to rig up different kind of circuits for different kind of ICs, each time we need to test them.
Unlike the IC testers available in the market today which are usually expensive, this IC tester is affordable and user-friendly. This IC tester is constructed using 8951 microcontroller along with a keyboard and a display unit. It can test digital ICs having a maximum of 24 pins. Since it is programmable, any number of ICs can be tested within the constraint of the memory available. This IC tester can be used to test a wide variety of ICs 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.
The block diagram of the programmable digital IC tester is as shown in below. It consists of two 8951 microcontroller ICs, a 24-pin IC socket, a keyboard unit, a display unit and indicators.
To test a particular digital IC, one needs to insert the IC into the IC socket and enter the IC number using the keyboard and then press the “ENTER” key. The IC number gets displayed in the 7-segment display unit.
Four LEDs are provided as indicators. If the IC being tested is a logic gate, then each of the 4 indicator LEDs correspond to the 4 gates of the IC. In any other case wherein the inserted IC is not a logic gate, all the 4 LEDs work as a single indicator.
Digital IC Tester
Digital IC Tester
Block diagram of Programmable Digital IC Tester:
Block diagram
August 4th, 2010 at 10:29 pm
Pls sent me circuit diagram of Microcontroller based digital IC tester for all Ic’s …. Including upto 40 pins IC.
August 9th, 2010 at 7:42 pm
pls send me the project details wit source code !!!pls
August 18th, 2010 at 7:17 pm
hi sir,
i saw your project. it is realy nice and i want to work as my final year projectt
please provide me all codes and circuit diagram with explaination…
thnking ypu
cheers : ABHISHEK
August 20th, 2010 at 2:52 pm
Hey, I just this project and am amazed at how you made this remarkable IC tester.
I would like to implement this project myself as well, so if you please
send me more info on this project like source code,
circuit diagram (in detail) and anything else that might be helpful in me
making this project.
Thanking u in advance and waiting for your reply
Hamza Zad Gul
August 22nd, 2010 at 10:50 am
nice project
August 25th, 2010 at 3:10 pm
hey,this is surprise for me .pl send me all detail of d ic tester so that i will workout on it for my students
August 26th, 2010 at 4:00 pm
more info
August 29th, 2010 at 10:10 am
I have seen this project and am amazed at how you made this remarkable IC tester.
I would like to implement this project myself as well, so if you please
send me more info on this project like source code,
circuit diagram (in detail) and anything else that might be helpful in me
making this project.
Thanking u in advance and waiting for your reply
Soumen Pandit
August 29th, 2010 at 8:22 pm
Please send me the circuit diagram and the code.
We really need it for our project.
ASAP pls.
Send me all the details. Thanks a lot.
We really appreciate this site.
It helps.
Godbless
August 29th, 2010 at 10:26 pm
pls send me circuit diagram & source code of digital ic tester project
September 1st, 2010 at 9:09 pm
iam very interested to do the project by myself.iam doing engineering in ece .i am in 4th year.Kindly send me the details of the circuits and the codes.
thanks.
partha.
September 3rd, 2010 at 1:13 pm
please send circuit diagram and assembly language code of Digital IC tester