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AT89C51ED2-RDTUM Folha de dados(PDF) 47 Page - ATMEL Corporation

Nome de Peças AT89C51ED2-RDTUM
Descrição Electrónicos  8-bit Flash Microcontroller
PDF  137 Pages
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Fabricante Electrônico  ATMEL [ATMEL Corporation]
Página de início  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ED2-RDTUM Folha de dados(HTML) 47 Page - ATMEL Corporation

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4235K–8051–05/08
AT89C51RD2/ED2
The first two options are more reliable because the watchdog timer is never disabled as in option
#3. If the program counter ever goes astray, a match will eventually occur and cause an internal
reset. The second option is also not recommended if other PCA modules are being used.
Remember, the PCA timer is the time base for all modules; changing the time base for other
modules would not be a good idea. Thus, in most applications the first solution is the best option.
This watchdog timer won’t generate a reset out on the reset pin.



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