| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | QS3257 | High Speed CMOS Quad 2:1 Mux / Demux
|
 Quality Semiconductor |
|
| 1 | QS3257Q | CMOS Quad 2:1 Multiplexr / Demultiplexer QS3257Q IL08 C-MOS QUAD 2 : 1 MULTIPLEXER/DEMULTIPLEXER —TOP VIEW— SEL IN 1 I0A I/O 2 I1A I/O 3 YA I/O 4 I0B I/O 5 I1B I/O 6 YB I/O 7 8 GND VDD 16 15 EN IN 14 I0D I/O 13 I1D I/O 12 YD I/O 11 I0C I/O 10 I1C I/O 9 YC I/O EN SEL 15 1 EN 0 0 1 2 I0A SEL I/O 0 I0 Y 1 I1 Y x HI-Z : : : : LOW LEVEL HIGH LEVEL DON’T CARE HIGH IMPEDANCE 4 YA 3 5 7 Y |
 ETC |
|
[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 |
|||