| Компонент | Описание | Производитель | |
| MC74LCX257DR2 | Low-Voltage CMOS Quad 2-Input Multiplexer With 5.0 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) |
ON Semiconductor |
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| MC74LCX257DR2G | Low-Voltage CMOS Quad 2-Input Multiplexer With 5.0 V−Tolerant Inputs and Outputs (3−State, Non−Inverting) |
ON Semiconductor |