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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
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 》
Next : Coming soon …
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
- 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
establish Pad Pad ( Rectangle ,SMT Patch pad ,123 Pin )
establish Pad Pad ( Rectangle ,SMT Patch pad ,4 Pin )
establish SOT-223 encapsulation
Schematic Association encapsulation
Step one : Open the schematic project
Step two : Double click the component to add the package
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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