TS3USB221RSER by Texas Instruments(TI) Design and production,in Shenzhen New Yihui Technology Co., Ltd Spot sales,And can pass Shenzhen New Yihui Technology Co., Ltd Purchasing。TS3USB221RSER Price reference $ 0.425000。TS3USB221RSER - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TS3USB221RSER Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial