C4_INPUT и другие
| Компонент | Описание | Производитель | |
| C4_INPUT | I/O Modules |
Crydom Inc., |
 |
| N74ALS253D | Dual 4input multiplexer (3State) |
NXP Semiconductors |
|
| N74ALS253DB | Dual 4input multiplexer (3State) |
NXP Semiconductors |
|
| N74ALS253N | Dual 4input multiplexer (3State) |
NXP Semiconductors |
|