| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74HCT109D | Dual JK flip-flop with set and reset; positive-edge trigger | 67K |
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| 2 | 74HCT109DB | Dual JK flip-flop with set and reset; positive-edge trigger | 67K |
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| 3 | 74HCT109D-T | J-K-Type Flip-Flop | 133K |
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