| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | TC74HC540AF | OCTAL BUS BUFFER INVERTING/NON-INVERTING, 3-STATE OUTPUTS | 238K |
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| 2 | TC74HC540AF | CMOS Digital Integrated Circuit Silicon Monolithic Octal Bus Buffer | 285K |
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| 3 | TC74HC540AFW | OCTAL BUS BUFFER INVERTING/NON-INVERTING, 3-STATE OUTPUTS | 238K |
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