TC74A2-5.0VAT by Microchip Design and production,in Kunlida Electronics (HK) Co., Ltd. Spot sales,And can pass Kunlida Electronics (HK) Co., Ltd. Purchasing。TC74A2-5.0VAT Price reference $ 1.450000。TC74A2-5.0VAT - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TC74A2-5.0VAT Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial