HCPL-520K by Broadcom Design and production,in Shenzhen Xinshengyuan Electronic Technology Co., Ltd. Spot sales,And can pass Shenzhen Xinshengyuan Electronic Technology Co., Ltd. Purchasing。HCPL-520K Price reference $ 0。HCPL-520K - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information HCPL-520K Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial