MAX232N by Texas Instruments(TI) Design and production,in Shenzhen New Yihui Technology Co., Ltd Spot sales,And can pass Shenzhen New Yihui Technology Co., Ltd Purchasing。MAX232N Price reference $ 1.130000。MAX232N - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information MAX232N Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial