积分:0分 关键词:周立功单片机, 读卡器,通信, Mifare MSR-100, RS232
积分:0分 关键词:Sipex, RS-232/RS-485, Transceiver, Programmable, Dual , SP331
积分:0分 关键词:Sipex, RS-232/RS-485, Multi-Mode, Serial Transceiver,SP332
积分:0分 关键词:Sipex, RS-232/RS-485 , Transceiver, Programmable,SP334