| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | SN74LS90N | DECADE, DIVIDE-BY-TWELVE AND BINARY COUNTERS | 451K |
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| 2 | SN74LS90N | DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER | 112K |
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| 3 | SN74LS90N | DECADE COUNTER; DIVIDE-BY-TWELVE COUNTER; 4-BIT BINARY COUNTER | 82K |
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| 4 | SN74LS90N | DECADE, DIVIDE-BY-TWELVE AND BINARY COUNTERS | 966K |
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| 5 | SN74LS90N | DECADE, DIVIDE-BY-TWELVE AND BINARY COUNTERS | 450K |
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| 6 | SN74LS90NDS | Asynchronous Up Counter | 316K |
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| 7 | SN74LS90NE4 | DECADE, DIVIDE-BY-TWELVE AND BINARY COUNTERS | 966K |
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