串行口通讯用的光偶都有那些型号啊,用hma121不好找啊 ...
【Fairchild Semiconductor】HMA121_Q,晶体管输出光电耦合器 Optocoupler Phototransistor
HMA121A,OPTOCOUPLER TRANS OUT 4MFP
【Fairchild Semiconductor】HMA121A_Q,晶体管输出光电耦合器 Optocoupler Phototransistor
HMA121AR1,OPTOCOUPLER TRANS OUT 4MFP
HMA121AR1V,OPTOCOUPLER TRANS OUT 4MFP
HMA121AR2,OPTOCOUPLER TRANS OUT 4MFP
HMA121AR2V,OPTOCOUPLER TRANS OUT 4MFP
HMA121AR3,OPTOCOUPLER TRANS OUT 4MFP