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The release information positions the document as customer-dependent guidance based on customer requirements, with product specifications subject to change. It includes proprietary and copyright notices, version history, and a structured contents outline covering product overview, package and pin assignments, mechanical details, interface applications, and key functions such as power supply, power on/off/reset, wake-up, GPIO power-domain selection, UART interfaces, and RI signal behaviors.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/sim7028-hardware-design-release/691380/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/sim7028-hardware-design-release/691380.png","ImageObject",300,407,{"name":92,"@type":93},"Aurelia","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-08",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What is the purpose of this SIM7028 hardware design document?","Question",{"text":111,"@type":112},"It provides hardware design information to support application and engineering efforts using SIMCom products, based on customer-provided requirements.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What responsibilities are excluded from SIMCom?",{"text":116,"@type":112},"SIMCom does not perform independent search for additional relevant information, and system validation within a larger electronic system remains the responsibility of the customer or system integrator.",{"name":118,"@type":109,"acceptedAnswer":119},"Which topics are covered in the hardware interface and application sections?",{"text":120,"@type":112},"The contents include hardware interface overview, functional overview, package information with pin assignment and mechanical details, and interface applications such as power control, wake-up, GPIO power-domain selection, UART interfaces, and RI signal behaviors.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},691380,1794174244,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143,"preview_page_count":4},1099514068365,"https://ap-avatar.wpscdn.com/avatar/10000253d8d9f28188e?_k=1776742907772140068","SIM7028  \nHardware Design  \nLPWA Module  \nSIMCom Wireless Solutions Limited.  \nSIMCom Headquarters Building , Building 3 , No. 289 Linhong Road Changning District, Shanghai P. R. China  \nTel: 86-21-31575100  \nsupport@simcom.com  \n[www.simcom.com](www.simcom.com)  \nDocument Title:  SIM7028 Hardware Design   \nVersion:  1.00   \nDate:  2021-11-18   \nStatus: Release  \nGENERAL NOTES  \nSIMCOM OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS , TO SUPPORT APPLICATION AND ENGINEERING EFFORTS THAT USE THE PRODUCTS DESIGNED BY SIMCOM. THE INFORMATION PROVIDED IS BASED UPON REQUIREMENTS SPECIFICALLY PROVIDED TO SIMCOM BY THE CUSTOMERS. SIMCOM HAS NOT UNDERTAKEN ANY INDEPENDENT SEARCH FOR ADDITIONAL RELEVANT INFORMATION, INCLUDING ANY INFORMATION THAT MAY BE IN THE CUSTOMER’S POSSESSION. FURTHERMORE , SYSTEM VALIDATION OF THIS PRODUCT DESIGNED BY SIMCOM WITHIN A LARGER ELECTRONIC SYSTEM REMAINS THE RESPONSIBILITY OF THE CUSTOMER OR THE CUSTOMER’S SYSTEM INTEGRATOR. ALL SPECIFICATIONS SUPPLIED HEREIN ARE SUBJECT TO CHANGE.  \nCOPYRIGHT  \nTHIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY OF SIMCOM WIRELESS SOLUTIONS LIMITED COPYING , TO OTHERS AND USING THIS DOCUMENT , ARE FORBIDDEN WITHOUT EXPRESS AUTHORITY BY SIMCOM. OFFENDERS ARE LIABLE TO THE PAYMENT OF INDEMNIFICATIONS. ALL RIGHTS RESERVED BY SIMCOM IN THE PROPRIETARY TECHNICAL INFORMATION， INCLUDING BUT NOT LIMITED TO REGISTRATION GRANTING OF A PATENT , A UTILITY MODEL OR DESIGN. ALL SPECIFICATION SUPPLIED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE AT ANY TIME.  \nSIMCom Wireless Solutions Limited  \nSIMCom Headquarters Building, Building 3 , No. 289 Linhong Road , Changning District, Shanghai P. R. China  \nTel: +86 21 31575100  \nEmail: simcom@simcom.com  \nFor more information, please visit:  \n[https://www.simcom.com/download/l](https://www.simcom.com/download/l)ist-863-en. html  \nFor technical support, or to report documentation errors, please visit:  \n[https://www.simcom.com/ask/](https://www.simcom.com/ask/ or email)[ or email](https://www.simcom.com/ask/ or email) to: support@simcom.com  \nCopyright © 2021 SIMCom Wireless Solutions Limited All Rights Reserved.  \nVersion History  \n\n| Date | Version | Description of change | Author |\n| --- | --- | --- | --- |\n| 2021-04-08 | 1.00 | Release | Guo Xiaomeng Xia yu |\n| 2021-09-18 | 1.00 | Improve test data | Hu Chenglang Yang Yanping |\n\nContents  \n1 Introduction........................................................................................................................................ 8  \n1. 1 Product Outline................................................................................................................................................. 8  \n1.2 Hardware Interface Overview......................................................................................................................... 9  \n1.3 Hardware Block Diagram.............................................................................................................................. 10  \n1.4 Functional Overview...................................................................................................................................... 10  \n2 Package Information...................................................................................................................... 12  \n2. 1 Pin Assignment Overview............................................................................................................................. 12  \n2.2 Pin Description................................................................................................................................................ 13  \n2.3 Mechanical Information................................................................................................................................. 16  \n2.4 Footprint Recommendation.......................................................................................................................... 17  ","cbCain78GdsBXBtu","https://ap.wps.com/l/cbCain78GdsBXBtu","pdf",3615172,52,"English","# 1 Introduction\n## 1.1 Product Outline\n## 1.2 Hardware Interface Overview\n## 1.3 Hardware Block Diagram\n## 1.4 Functional Overview\n# 2 Package Information\n## 2.1 Pin Assignment Overview\n## 2.2 Pin Description\n## 2.3 Mechanical Information\n## 2.4 Footprint Recommendation\n# 3 Interface Application\n## 3.1 Power Supply\n## 3.2 Power on/ Power off/ Reset Function\n## 3.2.1 Power on\n## 3.2.2 Power off\n## 3.2.3 Reset Function\n## 3.3 WAKE UP Description\n## 3.4 GP IO power domain 1.8V/3.3V selection\n## 3.5 UART Interface\n## 3.5.1 UART1 is used for serial communication\n## 3.5.2 UART1 is used for firmware upgrade and calibration\n## 3.5.3 Debug serial port UART0\n## 3.6 RI signal behaviors","[{\"question\":\"What is the purpose of this SIM7028 hardware design document?\",\"answer\":\"It provides hardware design information to support application and engineering efforts using SIMCom products, based on customer-provided requirements.\"},{\"question\":\"What responsibilities are excluded from SIMCom?\",\"answer\":\"SIMCom does not perform independent search for additional relevant information, and system validation within a larger electronic system remains the responsibility of the customer or system integrator.\"},{\"question\":\"Which topics are covered in the hardware interface and application sections?\",\"answer\":\"The contents include hardware interface overview, functional overview, package information with pin assignment and mechanical details, and interface applications such as power control, wake-up, GPIO power-domain selection, UART interfaces, and RI signal behaviors.\"}]","SIM7028 Hardware Design - Release | PDF",131]