| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | 74HC4538D | Dual retriggerable precision monostable multivibrator | 153K |
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| 2 | 74HC4538DB | Dual retriggerable precision monostable multivibrator | 153K |
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| 3 | 74HC4538D-T | Monostable Multivibrator | 245K |
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