| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | SN54LS49 | BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS | 597K |
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| 2 | SN54LS490 | DUAL DECADE COUNTER | 165K |
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| 3 | SN54LS490 | DUAL 4-BIT DECADE COUNTERS | 144K |
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| 4 | SN54LS490 | DUAL 4-BIT DECADE COUNTERS | 594K |
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| 5 | SN54LS490J | DUAL DECADE COUNTER | 165K |
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| 6 | SN54LS491A | 10-Bit Counter SN54/74LS491A | 247K |
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| 7 | SN54LS491A | 10-Bit Counter SN54/74LS491A | 251K |
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| 8 | SN54LS49FK | BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS | 597K |
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| 9 | SN54LS49J | BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS | 597K |
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| 10 | SN54LS49W | BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS | 597K |
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