R01UH0092EJ0110 Rev.1.10
Page 718 of 807
Jul 31, 2012
M16C/64C Group
31. Electrical Characteristics
Notes:
1.
Necessary time until the voltage detector operates after setting to 1 again after setting the VC27 bit in the VCR2
register to 0.
2.
Time from when passing the V
det2
until when a voltage monitor 2 reset is generated.
Note:
1.
To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS1 address
to 0. Also, set the VDSEL1 bit to 0 (Vdet0_2).
Figure 31.3
Power-On Reset Circuit Electrical Characteristics
Table 31.13
Voltage Detector 2 Electrical Characteristics
The measurement condition is V
CC1
= 2.7 to 5.5 V, T
opr
= -20
°
C to 85
°
C/-40
°
C to 85
°
C, unless otherwise specified.
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
V
det2
Voltage detection level Vdet2_0
When V
CC1
is falling
3.70
4.00
4.30
V
-
Hysteresis width at the rising of V
CC1
in voltage
detector 2
0.15
V
-
Voltage detector 2 response time
When V
CC1
falls from 5
V to (Vdet2_0 - 0.1) V
200
μ
s
-
Voltage detector self power consumption
VC27
=
1, V
CC1
=
5.0 V
1.7
μ
A
t
d(E-A)
Waiting time until voltage detector operation starts
(1)
100
μ
s
Table 31.14
Power-On Reset Circuit
The measurement condition is V
CC1
= 2.0 to 5.5 V, T
opr
= -20
°
C to 85
°
C/ -40
°
C to 85
°
C, unless otherwise specified.
Symbol
Parameter
Condition
Standard
Unit
Min.
Typ.
Max.
V
por1
Voltage at which power-on reset enabled
(1)
0.5
V
t
rth
External power V
CC1
rise gradient
2.0
50000 mV/ms
t
w(por)
Time necessary to enable power-on reset
300
ms
Vpor1
Internal
reset signal
Voltage detection 0
circuit response time
1
f
OCO-S
×
32
V
CC1
V
(1)
det0
t
rth
t
w(por)
t
rth
V
(1)
det0
1
f
OCO-S
×
32
Note:
1.
V
det0
indicates the voltage detection level of the voltage detection 0 circuit.
Summary of Contents for M16C Series
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