| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM74S280 | 9-Bit Parity Generator/Checker | 63K |
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| 2 | DM74S280J/A+ | Parity Generator/Checker | 103K |
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| 3 | DM74S280M | 9-Bit Parity Generator/Checker | 63K |
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| 4 | DM74S280MX | Parity Generator/Checker | 63K |
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| 5 | DM74S280N | 9-Bit Parity Generator/Checker | 63K |
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| 6 | DM74S280N/A+ | Parity Generator/Checker | 103K |
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| 7 | DM74S280N/B+ | Parity Generator/Checker | 103K |
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