| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | DM87S421J | x8 PROM | 65K |
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| 2 | DM87S421J/A+ | x8 PROM | 65K |
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| 3 | DM87S421J/B+ | x8 PROM | 65K |
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| 4 | DM87S421N | x8 PROM | 65K |
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| 5 | DM87S421N/A+ | x8 PROM | 65K |
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| 6 | DM87S421N/B+ | x8 PROM | 65K |
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