| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | QS74FCT257TP | 2-Input Digital Multiplexer | 606K |
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| 2 | QS74FCT257TQ | 2-Input Digital Multiplexer | 606K |
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| 3 | QS74FCT257TS1 | 2-Input Digital Multiplexer | 606K |
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| 4 | QS74FCT257TSO | 2-Input Digital Multiplexer | 606K |
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