TUSB542RWQR by TI Design and production,in HongKong RichShine Technology Co., Limited Spot sales,And can pass HongKong RichShine Technology Co., Limited Purchasing。TUSB542RWQR Price reference $ 2.310000。TUSB542RWQR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TUSB542RWQR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial