74AC257MTR и другие
| Компонент | Описание | Производитель | |
| 74AC257MTC | Quad 2-Input Multiplexer with 3-STATE Outputs |
Fairchild Semiconductor |
 |
| 74AC257MTCX | Quad 2-Input Multiplexer with 3-STATE Outputs |
Fairchild Semiconductor |
|
| 74AC257MTR | QUAD 2 CHANNEL MULTIPLEXER 3-STATE |
STMicroelectronics |
|