| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74LVC161PW | Presettable synchronous 4-bit binary counter; asynchronous reset | 121K |
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| 2 | 74LVC161PWDH | Presettable synchronous 4-bit binary counter; asynchronous reset | 121K |
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| 3 | 74LVC161PW-T | Synchronous Up Counter | 273K |
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