| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | P87C52UBPN | 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz | 346K |
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| 2 | P87C52UBPN | 8-bit CMOS (low voltage, low power and high speed) microcontroller families | 348K |
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| 3 | P87C52UBPN | 8-bit CMOS (low voltage, low power and high speed) microcontroller families | 348K |
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