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Hardware development notes (9): basic process of hardware development, making a USB to RS232 module (8): create asm1117-3.3v package library and associate principle graphic devices

2022-07-01 15:40:00 Changsha red fat QT

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This article blog address :https://hpzwl.blog.csdn.net/article/details/125370349

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Hardware related development

Last one :《 Hardware development notes ( 8、 ... and ): Basic process of hardware development , To make a USB turn RS232 Module ( 7、 ... and ): Create the foundation DIP components and parts ( Crystal oscillator ) Encapsulate and associate principle primitive devices
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Preface

   With the schematic diagram , Can design hardware PCB, In the design PCB There is also a coordinated priority action , Mapping encapsulation , The components of the schematic library are designed by us . In order to better describe the packaging design process , This article describes a process for creating asm1117-3.3V encapsulation , Connect the components of the schematic diagram to the pin package .


Schematic packaging analysis

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  • Serial number 1:USB Port packaging , see datasheet establish
  • Serial number 2:COM encapsulation , Use dip2.54,2dip
  • Serial number 3:ASM1117-3.3V encapsulation , see datasheet establish
  • Serial number 4:COM encapsulation , Use dip2.54,3dip
  • Serial number 5: Capacitor package , choose 0603 establish
  • Serial number 6:CH340G encapsulation , see datashee establish
  • Serial number 7: Crystal oscillator package , see datasheet establish
  • Serial number 8:MAX232 Component packaging , see datasheet establish
  • Serial number 9:CON encapsulation , Use dip2.54,5dip
       above , Actually com There is a universal ,0603 These are also general standard packages .

establish ASM1117-3.3V encapsulation

ASM1117-3.3V Package dimension drawing of

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establish Pad Pad ( Rectangle ,SMT Patch pad ,123 Pin )

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establish Pad Pad ( Rectangle ,SMT Patch pad ,4 Pin )

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establish SOT-223 encapsulation

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Schematic Association encapsulation

Step one : Open the schematic project

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Step two : Double click the component to add the package

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Last one :《 Hardware development notes ( 8、 ... and ): Basic process of hardware development , To make a USB turn RS232 Module ( 7、 ... and ): Create the foundation DIP components and parts ( Crystal oscillator ) Encapsulate and associate principle primitive devices
Next : Coming soon …


If the article is original , Reprint please indicate the source of the original
This article blog address :https://hpzwl.blog.csdn.net/article/details/125370349

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