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
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can i get the pcb layout pls….
i need that…
sie i need the hex file for the coding of master and slave microcontroleers please…. send it…….urgent……
I am a student of Electrical Engineering . I have studied and chosen this project as my final year project, I am keenly interested in it. sir I am stuck with the circuit diagram. What I need is the following:
1)Complete description on how we can interface keyboard and indicator to the 8951 microcontroller
2) Is this keyboard different from the keyboard of computer, if yes How can I design it?
3)You have said that this digital IC tester is used to test any ICs and 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.Here, what part of the IC is tested? please, verify it for me.
4)Regarding to the above comments I wrote I need your response as early as possible (to mean your reply for what I have asked must be in a short period of time).
You can send me all the necessary information via my e-mail
my e-mail is:rockingsunnyrocking@gmail.com
Thank you!
I need the circuit layout on proteus. Can I get it?
please sir, i need a complete write up of the proceedure of constructing this microcontroler logic gate tester kit.
hai sir…could u please tell me d components required or just how much it cost to implement d circuit…
sir,
I ve selected ur project as my mini project
I have some doubts
you have clearly explained how master IC sends info(IC number) to the slave
but how does slave responses to the master
is it possible for us to know if an ic is good or bad using dis tester…??or can v just distinguish btw analog n digital ic…??
On the 8951 IC tester how can you test a 24 pin IC when only 20 pins of the test socket are connected, pins 11,12,13,14 are open.
when the master program and the slave program are compiled to a hex using MCU8051 IDE errors are generated and compiling is unsuccessful, these errors are ,
‘Compiling file: Test1.asm (Master)
Initializing pre-processor …
Warning at 0 in Test1.asm: Missing `END’ directive
Syntax error at 64 in Test1.asm: Invalid set of operands: mov @R0,R1
Warning at 116 in Test1.asm: Reserved keyword used as label
Warning at 127 in Test1.asm: Reserved keyword used as label
Pre-processing FAILED !
Creating code listing file … -> “Test1.lst”
1 error, 3 warnings’
‘Compiling file: Test2.asm ( Slave)
Initializing pre-processor …
Warning at 0 in Test2.asm: Missing `END’ directive
Warning at 215 in Test2.asm: Reserved keyword used as label
Syntax error at 172 in Test2.asm: Symbol not defined: b6h
Syntax error at 175 in Test2.asm: Symbol not defined: dah
Syntax error at 178 in Test2.asm: Symbol not defined: feh
Pre-processing FAILED !
Creating code listing file … -> “Test2.lst”
3 errors, 2 warnings’
These are the listings of the errors of both files.
Can you explain why.
H J Quinn
I need ic tester can u give me if yes send me price of it.
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
Hello Sir….
My final year project is a “Digital IC Tester”. please send me project report and details for programming…..
sir, i want the pcb layout ,can i get that,plz
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
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….