AT89S51, AT89S52, AT89S53 MCU pin, the internal composition of the structure of detailed information. And English languages.

Packet : 37724072at89s.rar filelist
AT89s53
AT89s53\AT89S53.pdf
At89s52
At89s52\AT89S52.pdf
At89s52\AT89S52.txt
AT89S51
AT89S51\AT89S51.txt
AT89S51\AT89S51.pdf

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