Preliminary document
Specifications in this document are tentative and subject to change.
Under development
R8C/34W Group, R8C/34X Group, R8C/34Y Group, R8C/34Z Group
5. Electrical Characteristics
Table 5.7
Voltage Detection 0 Circuit Electrical Characteristics
Standard
Symbol
Parameter
Condition
Unit
Min.
2.70
−
Typ.
2.85
6
Max.
3.00
150
Vdet0
Voltage detection level
Voltage detection 0 circuit response time
At the falling of VCC
V
(3)
−
At the falling of Vcc from
µs
5 V to (Vdet0 − 0.1) V
−
Voltage detection circuit self power consumption
VCA25 = 1, VCC = 5.0 V
−
−
1.5
−
µA
µs
td(E-A)
Wait time until voltage detection circuit operation starts
−
100
(2)
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.
Table 5.8
Voltage Detection 1 Circuit Electrical Characteristics
Standard
Typ.
3.25
3.40
3.55
3.70
3.85
4.00
4.15
4.30
0.1
Symbol
Parameter
Condition
Unit
Min.
3.05
3.20
3.35
3.50
3.65
3.80
3.95
4.10
−
Max.
3.45
3.60
3.75
3.90
4.05
4.20
4.35
4.50
−
(2)
Vdet1
At the falling of VCC
At the falling of VCC
At the falling of VCC
At the falling of VCC
At the falling of VCC
At the falling of VCC
At the falling of VCC
At the falling of VCC
V
V
V
V
V
V
V
V
V
Voltage detection level Vdet1_7
Voltage detection level Vdet1_8
Voltage detection level Vdet1_9
Voltage detection level Vdet1_A
Voltage detection level Vdet1_B
Voltage detection level Vdet1_C
Voltage detection level Vdet1_D
Voltage detection level Vdet1_E
(2)
(2)
(2)
(2)
(2)
(2)
(2)
−
−
Hysteresis width at the rising of Vcc in voltage detection
1 circuit
(3)
At the falling of Vcc from
−
60
150
µs
Voltage detection 1 circuit response time
5 V to (Vdet1_7 − 0.1) V
−
Voltage detection circuit self power consumption
VCA26 = 1, VCC = 5.0 V
−
−
1.7
−
µA
µs
td(E-A)
−
100
Wait time until voltage detection circuit operation starts
(4)
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.
Table 5.9
Voltage Detection 2 Circuit Electrical Characteristics
Standard
Typ.
Symbol
Parameter
Voltage detection level Vdet2
Condition
Unit
Min.
3.80
−
Max.
4.20
−
Vdet2
At the falling of VCC
4.00
V
V
−
Hysteresis width at the rising of Vcc in voltage detection
2 circuit
0.1
(2)
−
At the falling of Vcc from
−
20
150
µs
Voltage detection 2 circuit response time
5 V to (Vdet2 − 0.1) V
−
Voltage detection circuit self power consumption
VCA26 = 1, VCC = 5.0 V
−
−
1.7
−
µA
µs
td(E-A)
−
100
Wait time until voltage detection circuit operation starts
(3)
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.
REJ03B0312-0010 Rev.0.10
Apr 09, 2010
Page 50 of 67
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