SN74ACT00DR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。SN74ACT00DR Price reference $ 0.170500。SN74ACT00DR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information SN74ACT00DR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial