at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 148

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

Reset Output
7663B–8051–03/07
As detailed in Section “Hardware Watchdog Timer”, page 108, 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 kΩ
resistor must be added as shown Figure 47.
Figure 47. Recommended Reset Output Schematic
VDD
VDD
VSS
+
RST
1K
RST
To other
on-board
circuitry
131