CC2640F128RSMR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。CC2640F128RSMR Price reference $ 5.730000。CC2640F128RSMR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information CC2640F128RSMR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial