MAX7221CWG+T by Maxim Integrated Products Design and production,in Fidelis Electronics Limited Spot sales,And can pass Fidelis Electronics Limited Purchasing。MAX7221CWG+T Price reference $ 12.460000。MAX7221CWG+T - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information MAX7221CWG+T Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial