Digital IC Tester

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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
Digital IC Tester
Digital IC Tester

Block diagram of Programmable Digital IC Tester:

Block diagram
Block diagram

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279 Responses to “Digital IC Tester”

  1. Dear if anyone has the correct code for ic tester plz send me…as early as possible i hv to submit my project …given code does not creates hex file …
    send me this at ..

    ranajuni541@yahoo.com

    Reply
  2. Hello Sir….
    My final year project is a “Digital IC Tester”. please send me project report and details for programming…..

    Reply
  3. awesome circuit. Well i see all people asking for some or the other help for the circuit design or pcb or the code. people try it doing yourself why depend on others, when the author who has presented it could do means it has to be possible to do it yourself right?? .be independent

    Reply
  4. i am stuck with the code for ic tester. please send me the code as soon as possible as i have to submit my project in the mid of february….

    Reply
  5. Hello sir…
    My project is a ” Digital Ic Tester” please send me project report & details for programming……

    Reply
  6. prashant kumar

    hello sir
    my topic is ‘digital ic tester’
    sir can u send me the complete circuit diagram of this project and the coding part…
    its really important..
    if u can, please do…

    Reply
  7. shubham

    mujhe iska full ckt diagragm chahiye pls jo bhi ise bna ho wo send kr de…

    Reply
  8. nikita borikar

    sir can u please send me the ckt dig n the details of this project

    Reply
  9. Krunal Mahajan

    Plzzzzz send me hex file of this program cause recent program nt convert in hex file plzz tommoro I have a submission

    Reply
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    Reply
  11. Hello just wanted to give youu a quick heads up. The words iin your post seem to be running off the screen in Internet explorer.
    I’m not sure if this is a formatting issue or something to do with web browser compatibility but I figured I’d post
    to let you know. The design look great though!
    Hope you get the issuue resolved soon. Kudos

    Reply
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    Reply
  13. hello sir..can i get the schematic, pcb layout and coding…i’m doing this project for final year.

    Reply

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