IC-tester

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In a zx.pk.ru I found an interesting project: "IC tester". With chip ATMEGA8515 and 4x7-segment display. You can test logic IC's.

The disadvantage of the schematic that you can not test the high power (high power-consuming) chips. I decided to improve the schematic with the P-mosfet. Advanced version is:

Than all put into box:

It also I had to rewrite microcontroller software that work under the new schematics. New firmware allows test more chips.

If the tested microchip is bad, then the result will be as follows:

If you were trying to test in the search mode and the chip is bad, then the result will be as follows:

To test IC with 24 legs schematic must be like this:

Currently, you can check these chips:

No. Testing ICs LCD indicator value
1. 7400(ЛА3),
7437(ЛА12),
74132(ТЛ3)
00
2. 7401(ЛА8) 01
3. 7402(ЛЕ1) 02
4. 7403(ЛА9),
7426(ЛА11),
7438(ЛА13)
03
5. 7404(ЛН1),
7414(ТЛ2),
CD4049A(561ЛН2)
04
6. 7405(ЛН2),
7406(ЛН3)
05
7. 7407(ЛП9) 07
8. 7408(ЛИ1) 08
9. 7409(ЛИ2) 09
10. 7410(ЛА4) 10
11. 7411(ЛИ3) 11
12. (531ЛА17) l17
13. 7420(ЛА1),
7440(ЛА6)
20
14. 7421(ЛИ6) 21
15. 7422(ЛА7) 22
16. 7427(ЛЕ4) 27
17. 7430(ЛА2) 30
18. 7432(ЛЛ1) 32
19. 7433(ЛЕ11) 33
20. 7472(ТВ1) 72
21. 7474(ТМ2) 74
22. 7486(ЛП5) 86
23. 7490(ИЕ2) 90
24. 7493(ИЕ5) 93
25. 7495(ИР1) 95
26. 74107(ТВ6) 107
27. 74125(ЛП8) 125
28. 74138(ИД7) 138
29. 74139(ИД14) 139
30. 74151(КП7) 151
31. 74153(КП2) 153
32. 74155(ИД4) 155
33. 74155(ИД5) 156
34. 74157(КП16) 157
35. 74160(ИЕ9) 160
36. 74161(ИЕ10) 161
37. 74165(ИР9) 165
38. 74166(ИР10) 166
39. 74169(ИЕ17) 169
40. 74174(TM9) 174
41. 74175(TM8) 175
42. 74193(ИЕ7) 193
43. 74240(АП3) 240
44. 74244(АП5) 244
45. 74245(АП6) 245
46. 74251(КП15) 251
47. 74253(КП12) 253
48. 74257(КП11) 257
49. 74258(КП14) 258
50. 74273(ИР35) 273
51. 74295(ИР16) 295
52. 74298(КП13) 298
53. 74366(ЛН6) 366
54. 74367(ЛП11) 367
55. 74373(ИР22) 373
56. 74374(ИР23) 374
57. 74377(ИР27) 377
58. 74393(ИЕ19) 393
59. 74541(АП13) 541
60. 74573(ИР33) 573
61. 74574(ИР37) 574
62. 744040 u40
63. 75452(ЛА18) 452
64. CD4502(561ЛН1) C02
65. CD4516(561ИЕ11) C16
66. CD4520(561ИЕ10) C20
67. CD4066(561КТ3) C66
68. i8216(589АП16) i16
69. i8216(589АП26) i26
70. i8282(580ИР82) i82
71. i8283(580ИР83) i83
72. i8286(580ВА86) i86
73. i8287(580ВА87) i87
74. 74150(КП1) 150
75. 74154(ИД3) 154
76. 74198(ИР13) 198

Next, I will try to do static and dynamic IC testing.

Firmwares:

  • IC-Tester by Ewgeny7 v1.30
  • IC-Tester v1.1,v2.0 by Protom v1.30
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