MSP430F2274IDAR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。MSP430F2274IDAR Price reference $ 2.531250。MSP430F2274IDAR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information MSP430F2274IDAR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial