
5. Electrical Characteristics
Rev.2.41
Jan 10, 2006
REJ03B0001-0241
NOTES:
1.
Vdet4 > Vdet3.
2.
Where reset level detection voltage is less than 2.7 V, if the supply power voltage is greater than the reset level detection
voltage, the microcomputer operates with f(BCLK)
≤ 10MHz.
3.
Vdet3r > Vdet3 is not guaranteed.
4.
The voltage detection circuit is designed to use when VCC1 is set to 5V.
NOTES:
1.
When VCC1 = 5V.
Table 5.9
Low Voltage Detection Circuit Electrical Characteristics
Symbol
Parameter
Measuring Condition
Standard
Unit
Min.
Typ.
Max.
Vdet4
Low Voltage Detection Voltage
(1)VCC1=0.8V to 5.5V
3.3
3.8
4.4
V
Vdet3
Reset Level Detection Voltage
(1, 2)2.2
2.8
3.6
V
Vdet4-Vdet3
Electric potential difference of Low Voltage
Detection and Reset Level Detection
0.3
V
Vdet3s
Low Voltage Reset Retention Voltage
0.8
V
Vdet3r
Low Voltage Reset Release Voltage
(3)2.2
2.9
4.0
V
Table 5.10
Power Supply Circuit Timing Characteristics
Symbol
Parameter
Measuring Condition
Standard
Unit
Min.
Typ.
Max.
td(P-R)
Time for Internal Power Supply Stabilization
During Powering-On
VCC1=2.7V to 5.5V
2
ms
td(R-S)
STOP Release Time
150
s
td(W-S)
Low Power Dissipation Mode Wait Mode
Release Time
150
s
td(S-R)
Brown-out Detection Reset (Hardware Reset 2)
Release Wait Time
VCC1=Vdet3r to 5.5V
20
ms
td(E-A)
Low Voltage Detection Circuit Operation Start
Time
VCC1=2.7V to 5.5V
20
s