| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM74S473N | (512 x 8) 4096-Bit TTL PROM | 129K |
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| 2 | DM74S473N | (512 x 8) 4096-Bit TTL PROM | 129K |
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| 3 | DM74S473N/A+ | x8 PROM | 110K |
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| 4 | DM74S473N/B+ | x8 PROM | 110K |
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