| No | Part number | Description ( Function ) | Manufacturers | |
| 4 | 7490 | Package Contains a Divide-by-Two and a Divide-by-Five Counter |
 ETC |
|
| 3 | 7490 | Package Contains a Divide-by-Two and a Divide-by-Five Counter |
ETC |
|
| 2 | 7490 | Decade and Binary Counters DM7490A Decade and Binary Counters August 1986 Revised March 2000 DM7490A Decade and Binary Counters General Description The DM7490A monolithic counter contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five. The counter has a gated zero reset and also has |
 Fairchild Semiconductor |
|
| 1 | 7490100123 | Discrete Single Port 10/100 Base-T PDSO-G16
|
 Midcom |
|
[1]
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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