MAX7219CNG+ by Maxim Integrated Products Design and production,in Fidelis Electronics Limited Spot sales,And can pass Fidelis Electronics Limited Purchasing。MAX7219CNG+ Price reference $ 9.130000。MAX7219CNG+ - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information MAX7219CNG+ Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial