| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74LV393 | Dual 4-bit binary ripple counter | 117K |
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| 2 | 74LV393D | Dual 4-bit binary ripple counter | 117K |
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| 3 | 74LV393DB | Dual 4-bit binary ripple counter | 117K |
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| 4 | 74LV393DB-T | Asynchronous Up Counter | 426K |
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| 5 | 74LV393D-T | Asynchronous Up Counter | 426K |
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| 6 | 74LV393N | Dual 4-bit binary ripple counter | 117K |
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| 7 | 74LV393PW | Dual 4-bit binary ripple counter | 117K |
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| 8 | 74LV393PWDH | Dual 4-bit binary ripple counter | 117K |
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| 9 | 74LV393PW-T | Asynchronous Up Counter | 426K |
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