| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74AC574SC | Octal D-Type Flip-Flop with 3-STATE Outputs | 102K |
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| 2 | 74AC574SC | Octal D-Type Flip-Flop with 3-STATE Outputs | 118K |
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| 3 | 74AC574SCQR | Octal D-Type Flip-Flop | 254K |
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| 4 | 74AC574SCX | Octal D-Type Flip-Flop | 359K |
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