19 ELECTRICAL CHARACTERISTICS
S1C17M12/M13 TECHNICAL MANUAL
Seiko Epson Corporation
19-3
(Rev. 1.2)
Current consumption-temperature characteristic
Current consumption-frequency characteristic
in RUN mode (OSC1 operation)
in RUN mode (OSC3 operation)
IOSC = OFF, OSC3 = ON, Typ. value
IOSC = OFF, OSC3 = ON, Ta = 25 °C, Typ. value
-50
2,000
1,800
1,600
1,400
1,200
1,000
800
600
400
200
0
-25
0
25
50
75
100
Ta [
°
C]
I
R
UN2
[
µ
A]
16 MHz (RDWAIT = 0x2)
12 MHz (RDWAIT = 0x1)
8 MHz (RDWAIT = 0x1)
4 MHz (RDWAIT = 0x1)
( ) Value of the FLASHCWAIT.RDWAIT[1:0] bits
0
4
8
12
16
20
1,800
1,600
1,400
1,200
1,000
800
600
400
200
0
f
OSC3
[
MHz
]
I
R
UN2
[
µ
A]
FLASHCWAIT.RDWAIT[1:0] bits = 0x2
0x1
0x3
0x0
19.4 System Reset Controller (SRC) Characteristics
#RESET pin characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= V
SS2
= 0 V, Ta = -40 to 85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
High level Schmitt input threshold voltage V
T+
0.5
×
V
DD
–
0.8
×
V
DD
V
Low level Schmitt input threshold voltage V
T-
0.2
×
V
DD
–
0.5
×
V
DD
V
Schmitt input hysteresis voltage
D
V
T
180
–
–
mV
Input pull-up resistance
R
IN
100
230
500
k
W
Pin capacitance
C
IN
–
–
15
pF
Reset Low pulse width
t
SR
5
–
–
µs
#RESET
t
SR
V
T+
V
T-
POR/BOR characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= V
SS2
= 0 V, Ta = -40 to 85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
POR/BOR canceling voltage
V
RST+
–
1.51
1.75
V
POR/BOR detection voltage
V
RST-
1.25
1.45
–
V
POR/BOR hysteresis voltage
D
V
RST
40
60
–
mV
POR/BOR detection response time
t
RST
–
–
20
µs
POR/BOR operating limit voltage
V
RST
OP
–
0.5
0.95
V
POR/BOR reset request hold time
t
RRQ
0.01
–
4
ms
POR&BOR
reset request
V
DD
V
SS
V
RST
OP
V
RST-
V
RST-
V
RST-
V
RST+
Indefinite (operating limit)
POR/BOR reset request
t
RRQ
X
X
X
REQ
REQ
t
RRQ
REQ
t
RRQ
t
RST
t
RST
t
RST
X
V
RST
OP
V
RST
OP
V
RST+
REQ
∆
V
RST
Note: When performing a power-on-reset again after the power is turned off, decrease the V
DD
voltage
to V
RST
OP or less.