| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | SN74LS640 | OCTAL BUS TRANSCEIVERS | 85K |
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| 2 | SN74LS640 | LOW POWER SCHOTTKY | 144K |
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| 3 | SN74LS640 | OCTAL BUS TRANSCEIVERS | 344K |
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| 4 | SN74LS640 | OCTAL BUS TRANSCEIVERS | 85K |
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| 5 | SN74LS640 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 6 | SN74LS640-1DW | OCTAL BUS TRANSCEIVRS | 1163K |
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| 7 | SN74LS640-1DWE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 8 | SN74LS640-1DWG4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 9 | SN74LS640-1DWR | OCTAL BUS TRANSCEIVRS | 1163K |
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| 10 | SN74LS640-1N | OCTAL BUS TRANSCEIVRS | 1163K |
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| 11 | SN74LS640-1NE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 12 | SN74LS640-1NSR | OCTAL BUS TRANSCEIVRS | 1163K |
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| 13 | SN74LS640-1NSRE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 14 | SN74LS640-1NSRG4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 15 | SN74LS640DW | OCTAL BUS TRANSCEIVERS | 344K |
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| 16 | SN74LS640DW | OCTAL BUS TRANSCEIVERS | 121K |
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| 17 | SN74LS640DW | LOW POWER SCHOTTKY | 144K |
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| 18 | SN74LS640DW | OCTAL BUS TRANSCEIVRS | 1163K |
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| 19 | SN74LS640DWE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 20 | SN74LS640DWG4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 21 | SN74LS640DWR | OCTAL BUS TRANSCEIVRS | 1163K |
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| 22 | SN74LS640DWRE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 23 | SN74LS640DWRG4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 24 | SN74LS640N | OCTAL BUS TRANSCEIVERS | 344K |
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| 25 | SN74LS640N | OCTAL BUS TRANSCEIVERS | 121K |
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| 26 | SN74LS640N | LOW POWER SCHOTTKY | 144K |
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| 27 | SN74LS640N | OCTAL BUS TRANSCEIVRS | 1163K |
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| 28 | SN74LS640N3 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 29 | SN74LS640NE4 | OCTAL BUS TRANSCEIVRS | 1163K |
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| 30 | SN74LS640NSR | OCTAL BUS TRANSCEIVRS | 1163K |
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