Datasheet

R8C/2H Group, R8C/2J Group 5. Electrical Characteristics
Rev.1.00 Mar 28, 2008 Page 33 of 65
REJ03B0217-0100
NOTES:
1. The measurement condition is V
CC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version).
2. Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA25 bit in the VCA2
register to 0.
NOTES:
1. The measurement condition is V
CC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version).
2. Time until the voltage monitor 1 interrupt request is generated after the voltage passes V
det1.
3. Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2
register to 0.
4. This parameter shows the voltage detection level when the power supply drops.
The voltage detection level when the power supply rises is higher than the voltage detection level when the power supply
drops by approximately 0.1 V.
NOTES:
1. The measurement condition is V
CC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version).
2. Time until the voltage monitor 2 interrupt request is generated after the voltage passes V
det2.
3. Necessary time until the voltage detection circuit operates after setting to 1 again after setting the VCA27 bit in the VCA2
register to 0.
Table 5.4 Voltage Detection 0 Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
V
det0 Voltage detection level 2.2 2.3 2.4 V
− Voltage detection circuit self power consumption VCA25 = 1, V
CC = 5.0 V − 0.9 −µA
t
d(E-A) Waiting time until voltage detection circuit operation
starts
(2)
−−300 µs
Vccmin MCU operating voltage minimum value 2.2 −−V
Table 5.5 Voltage Detection 1 Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
V
det1
Voltage detection level
(4)
2.70 2.85 3.00 V
−
Voltage monitor 1 interrupt request generation time
(2)
− 40 −µs
− Voltage detection circuit self power consumption VCA26 = 1, V
CC = 5.0 V − 0.6 −µA
t
d(E-A) Waiting time until voltage detection circuit operation
starts
(3)
−−100 µs
Table 5.6 Voltage Detection 2 Circuit Electrical Characteristics
Symbol Parameter Condition
Standard
Unit
Min. Typ. Max.
V
det2
Voltage detection level
3.3 3.6 3.9 V
−
Voltage monitor 2 interrupt request generation time
(2)
− 40 −µs
− Voltage detection circuit self power consumption VCA27 = 1, V
CC = 5.0 V − 0.6 −µA
t
d(E-A) Waiting time until voltage detection circuit operation
starts
(3)
−−100 µs