摘要：DS2409的设计初衷是将其用做门禁控制的探测点(即读取头)以及用来减少大型1-Wire®网络中总线上的负载。DS2409也被用来实现双主机网络。但目前Maxim已经决定停止生产DS2409并鼓

The DS2409 is designed for use in access-control probe points (i.e., readers) and to lower the bus l