ST485BDR by STMicroelectronics Design and production,in Xiongsheng Micro Technology (Hong Kong) Co., Ltd. Spot sales,And can pass Xiongsheng Micro Technology (Hong Kong) Co., Ltd. Purchasing。ST485BDR Price reference $ 1.232000。ST485BDR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information ST485BDR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial