STC89C52RC-40I-PQFP STC89C52RC-40I-PLCC44 STC89C52RC-40I-PLCC STC89C52RC-40I-PDIP40 STC89C52RC-40I-PDIP STC89C52RC-40I-LQFP44 STC89C52RC-40I-LQFP STC89C52RC-40I STC89C52RC40I STC89C52RC-40C-PQFP STC89C52RD+
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基于USB从机技术的绝缘电阻表自动检定系统通信接口设计
...缓冲区为端点2的上传缓冲区,输入缓冲区为端点2的下传缓冲区。本设计正好利用该特点,通过端点2批量上传和下传数据到缓冲区,实现信息快速交互。 系统选用具有超强抗干扰、高速、低功耗的8 bit STC89C52RD+单片机为从机核心控制器,其内置看门狗 WATCH-DOG电路、512 B RAM和4 KB Flash存储器[4],使用时无需扩展存储器和附加外置看门狗电路。简化的外围电路,可方便地应用到绝缘电阻表自动...
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