| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74LV4040 | 12-stage binary ripple counter | 136K |
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| 2 | 74LV4040A | 12-BIT ASYNCHRONOUS BINARY COUNTERS | 814K |
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| 3 | 74LV4040D | 12-stage binary ripple counter | 136K |
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| 4 | 74LV4040DB | 12-stage binary ripple counter | 136K |
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| 5 | 74LV4040DB-T | Asynchronous Up Counter | 246K |
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| 6 | 74LV4040D-T | Asynchronous Up Counter | 246K |
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| 7 | 74LV4040N | 12-stage binary ripple counter | 136K |
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| 8 | 74LV4040PW | 12-stage binary ripple counter | 136K |
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| 9 | 74LV4040PWDH | 12-stage binary ripple counter | 136K |
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| 10 | 74LV4040PW-T | Asynchronous Up Counter | 246K |
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