SP485RE英文原版数据手册TheSP481RandSP485Rarepin-to-pinequivalentwithourexistingSP485productandcontainenhancementssuchashigherESDtoleranceandhighreceiverinputimpedance.Thehigherreceiverinputimpedanceallowsforconnectingover400transceiversonasingletransmissionlinewithoutdegradingtheRS-485driversig