PCA9518APW,512 by NXP Semiconductors Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。PCA9518APW,512 Price reference $ 2.240000。PCA9518APW,512 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information PCA9518APW,512 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial