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我有一个低功耗产品用贵司的MSP432+TF卡项目，想通过USB读卡，发现带有USB读卡的MCU ，速度太低，达不到要求，打算用专用读卡芯片，通过模拟开关在MCU和读卡芯片之间切换，想请贵司推荐一个款低功耗的模拟开关
两个主机分时访问同一个TF卡，一个主机访问TF卡，另一个断电（不工作）。想通过模拟开关切换TF卡和主机的管脚连接。不是切换USB，
