| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | 54ACT521 | 8-Bit Identity Comparator 54AC521 • 54ACT521 8-Bit Identity Comparator September 1998 54AC521 • 54ACT521 8-Bit Identity Comparator General Description The AC/ACT521 is an expandable 8-bit comparator. It compares two words of up to eight bits each and provides a LOW output when the two words match bit for bit. The expansion input IA = B also serves as an active LOW enable input |
 National Semiconductor |
|
| 1 | 54ACT521 | 54AC521 54ACT521 8-Bit Identity Comparator |
 Texas Instruments |
|
[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 |
|||