序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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1 | 74HC190 | Presettable synchronous BCD decade up/down counter | 104K |
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2 | 74HC190D | Presettable synchronous BCD decade up/down counter | 104K |
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3 | 74HC190DB | Presettable synchronous BCD decade up/down counter | 104K |
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4 | 74HC190D-T | Asynchronous Up/Down Counter | 240K |
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5 | 74HC190N | Presettable synchronous BCD decade up/down counter | 104K |
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6 | 74HC190PW | Presettable synchronous BCD decade up/down counter | 104K |
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