M74HC541RM13TR by STMicroelectronics Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。M74HC541RM13TR Price reference $ 1.106000。M74HC541RM13TR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information M74HC541RM13TR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial