SN74LS245NSR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。SN74LS245NSR Price reference $ 0.900000。SN74LS245NSR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SN74LS245NSR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial