| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | HD74LS669 | Synchronous Up/Down 4-bit Binary Counters | 104K |
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| 2 | HD74LS669 | Ouadruple 2-input Positive NAND Gates | 7129K |
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| 3 | HD74LS669 | Synchronous Up / Down 4-bit Binary Counter | 186K |
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| 4 | HD74LS669FPEL | Synchronous Up / Down 4-bit Binary Counter | 186K |
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| 5 | HD74LS669P | Synchronous Up/Down Counter | 104K |
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