
32
AT89C51ID2
4289C–8051–11/05
Reset Output
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 9.
Figure 9. Recommended Reset Output Schematic
RST
VDD
+
VSS
VDD
RST
1K
To other
on-board
circuitry
AT89C51ID2