
R8C/38W Group, R8C/38X Group, R8C/38Y Group, R8C/38Z Group
5. Electrical Characteristics
Under development Preliminary document
Specifications in this document are tentative and subject to change.
REJ03B0317-0010 Rev.0.10
May 31, 2010
Notes:
1.
The measurement condition is VCC = 2.7 V to 5.5 V and Topr =
40 to 85°C (J version) / 40 to 125°C (K 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.
3.
Time until the voltage monitor 0 reset is generated after the voltage passes Vdet0.
Notes:
1.
The measurement condition is VCC = 2.7 V to 5.5 V and Topr =
40 to 85°C (J version) / 40 to 125°C (K version).
2.
Select the voltage detection level with bits VD1S0 to VD1S3 in the VD1LS register.
3.
Time until the voltage monitor 1 interrupt request is generated after the voltage passes Vdet1.
4.
Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2
register to 0.
Notes:
1.
The measurement condition is VCC = 2.7 V to 5.5 V and Topr =
40 to 85°C (J version) / 40 to 125°C (K version).
2.
Time until the voltage monitor 2 interrupt request is generated after the voltage passes Vdet2.
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 5.7
Voltage Detection 0 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet0
Voltage detection level
At the falling of VCC
2.70
2.85
3.00
V
Voltage detection 0 circuit response time
(3)At the falling of Vcc from
5 V to (Vdet0
0.1) V
6
150
s
Voltage detection circuit self power consumption
VCA25 = 1, VCC = 5.0 V
1.5
A
td(E-A)
Wait time until voltage detection circuit operation starts
100
s
Table 5.8
Voltage Detection 1 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet1
Voltage detection level Vdet1_7
(2)At the falling of VCC
3.05
3.25
3.45
V
Voltage detection level Vdet1_8
(2)At the falling of VCC
3.20
3.40
3.60
V
Voltage detection level Vdet1_9
(2)At the falling of VCC
3.35
3.55
3.75
V
Voltage detection level Vdet1_A
(2)At the falling of VCC
3.50
3.70
3.90
V
Voltage detection level Vdet1_B
(2)At the falling of VCC
3.65
3.85
4.05
V
Voltage detection level Vdet1_C
(2)At the falling of VCC
3.80
4.00
4.20
V
Voltage detection level Vdet1_D
(2)At the falling of VCC
3.95
4.15
4.35
V
Voltage detection level Vdet1_E
(2)At the falling of VCC
4.10
4.30
4.50
V
Hysteresis width at the rising of Vcc in voltage detection
1 circuit
0.1
V
Voltage detection 1 circuit response time
(3)At the falling of Vcc from
5 V to (Vdet1_7
0.1) V
60
150
s
Voltage detection circuit self power consumption
VCA26 = 1, VCC = 5.0 V
1.7
A
td(E-A)
Wait time until voltage detection circuit operation starts
100
s
Table 5.9
Voltage Detection 2 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
Vdet2
Voltage detection level Vdet2
At the falling of VCC
3.80
4.00
4.20
V
Hysteresis width at the rising of Vcc in voltage detection
2 circuit
0.1
V
Voltage detection 2 circuit response time
(2)At the falling of Vcc from
5 V to (Vdet2
0.1) V
20
150
s
Voltage detection circuit self power consumption
VCA26 = 1, VCC = 5.0 V
1.7
A
td(E-A)
Wait time until voltage detection circuit operation starts
100
s