R8C/1A Group, R8C/1B Group
19. Electrical Characteristics
Rev.1.30
Dec 08, 2006
Page 280 of 315
REJ09B0252-0130
Figure 19.2
Transition Time to Suspend
NOTES:
1.
The measurement condition is V
CC
= 2.7 V to 5.5 V and T
opr
= -40
°
C to 85
°
C.
2.
Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2
register to 0.
3.
Ensure that V
det2
> V
det1
.
NOTES:
1.
The measurement condition is V
CC
= 2.7 V to 5.5 V and T
opr
= -40
°
C to 85
°
C.
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 when setting to 1 again after setting the VCA27 bit in the VCA2
register to 0.
4.
Ensure that V
det2
> V
det1
.
Table 19.6
Voltage Detection 1 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
V
det1
Voltage detection level
(3)
2.70
2.85
3.00
V
−
Voltage detection circuit self power consumption
VCA26 = 1, V
CC
= 5.0 V
−
600
−
nA
t
d(E-A)
Waiting time until voltage detection circuit operation
starts
(2)
−
−
100
µ
s
Vccmin
MCU operating voltage minimum value
2.7
−
−
V
Table 19.7
Voltage Detection 2 Circuit Electrical Characteristics
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
V
det2
Voltage detection level
(4)
3.00
3.30
3.60
V
−
Voltage monitor 2 interrupt request generation time
(2)
−
40
−
µ
s
−
Voltage detection circuit self power consumption
VCA27 = 1, V
CC
= 5.0 V
−
600
−
nA
t
d(E-A)
Waiting time until voltage detection circuit operation
starts
(3)
−
−
100
µ
s
FMR46
Suspend request
(maskable interrupt request)
Fixed time (97
µ
s)
t
d(SR-SUS)
Clock-
dependent time
Access restart