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89Sxx Development Board
Posted by admin on October 27th, 2009
There are some 89Sxx development board, here is another one. I have designed this single side development board to be used as a tool for learning MCS-51 Microcontrollers, and for easy microcontroller project development.
The 89Sxx development board features :
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89Sxx 40-DIL based design, 89S51/52/53
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In System Programming (ISP) through the 6-pin header
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RS-232 and RS-485 serial port (shared pin) for communicating with serial devices like PC
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HD44780 compatible alphanumeric LCD connectivity with backlight control
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4 on-board tact switch
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16 general purpose IO port pins on 5×2 header (Port0 and Port2)
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24Cxx I2C EEPROM
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DS1302 serial Real Time Clock (RTC) with battery backup
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On-board supply rectifier and voltage regulator
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Single sided PCB design
89Sxx Development Board - [Link]
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