| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | P89C51UBBB | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash | 217K |
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| 2 | P89C51UBBB | 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash | 231K |
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| 3 | P89C51UBBB-S | 8-Bit Microcontroller | 1725K |
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| 4 | P89C51UBBB-T | 8-Bit Microcontroller | 1725K |
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