SN74HCT574NSR by TI Design and production,in SEHOT CO., LIMITED Spot sales,And can pass SEHOT CO., LIMITED Purchasing。SN74HCT574NSR Price reference $ 0.779708。SN74HCT574NSR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SN74HCT574NSR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial