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AT89C51ED2-RDTIM Datasheet(PDF) 28 Page - ATMEL Corporation

Part # AT89C51ED2-RDTIM
Description  8-bit Flash Microcontroller
PDF  137 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ED2-RDTIM Datasheet(HTML) 28 Page - ATMEL Corporation

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AT89C51RD2/ED2
4235E–8051–04/04
Reset Output
As detailed in Section “Hardware Watchdog Timer”, page 86, the WDT generates a 96-
clock period pulse on the RST pin. In order to properly propagate this pulse to the rest of
the application in case of external capacitor or power-supply supervisor circuit, a 1 k
Ω
resistor must be added as shown Figure 11.
Figure 11. Recommended Reset Output Schematic
RST
VDD
+
VSS
VDD
RST
1K
To other
on-board
circuitry
AT89C51XD2



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