Renesas R8C/18 Series Hardware Manual page 40

R8C/18 Group, R8C/19 Group
Figure 5.4 Example of Hardware Reset Circuit and Operation
Figure 5.5 Example of Hardware Reset Circuit (Usage Example of External Supply Voltage
Detection Circuit) and Operation
Rev.1.30 Apr 14, 2006
REJ09B0222-0130
VCC
RESET
NOTE:
1. Refer to 18. Electrical Characteristics.
Power supply
voltage detection
circuit
RESET VCC
Example when
VCC = 5 V
NOTE:
1. Refer to 18. Electrical Characteristics.
Page 25 of 233
2.7 V
VCC
0V
RESET
0.2 VCC or below
0V
td(P-R) + 500 µs or more
5 V
VCC
2.7 V
0 V
5 V
RESET
0 V
td(P-R) + 500 µ s or above
5. Resets