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The circuit will allow you to easily and independently control two motors of up to 2a. Insystemprogrammer for atmel at89s8252 microcontroller. The 8051 microcontroller kenneth j ayala 3rd edition download. At89s8252 datasheet,at89s8252 pinout pin out,at89s8252 application circuits can. The atmel at89s8252 is an 8051 based full static cmos controller with threelevel program memory lock, 32 io lines, 3 timerscounters, 9 interrupts sources, spi, watchdog timer, 2 dptrs, 8k flash memory, 2k eeprom, 256 bytes onchip ram. Pdf at89s8253 at89s8252 at89s53 3655b atmel at89cx051 pin diagram wdtcon microcontroller. Microcontrollers at89s8252 at89ls8252 at89s53 at89ls53. Not defined but normally msb of character just receivedfigure 9.
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