| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | HEF40194B | 4-bit bidirectional universal shift register | 74K |
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| 2 | HEF40194BD | 4-bit bidirectional universal shift register | 74K |
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| 3 | HEF40194BF | 4-bit bidirectional universal shift register | 74K |
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| 4 | HEF40194BN | 4-bit bidirectional universal shift register | 74K |
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| 5 | HEF40194BP | 4-bit bidirectional universal shift register | 74K |
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| 6 | HEF40194BT | SHIFT REGISTER|CMOS|SOP|16PIN|PLASTIC | 74K |
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| 7 | HEF40194BT | 4-bit bidirectional universal shift register | 74K |
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