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21 ELECTRICAL CHARACTERISTICS
Item
Crystal/ceramic oscillator circuit
current - oscillation inverter
drivability ratio
*2 Ceramic resonator = CSBLA_J (manufactured by Murata Manufacturing Co., Ltd., 1 MHz), C
OSC3 internal oscillation frequency-
temperature characteristic
V
= 1.6 to 3.6 V, Typ. value
DD
4.5
CLGOSC3.OSC3FQ[2:0] bits = 0x3
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
-25
0
OSC3 CR oscillation frequency-
resistance characteristic
V
= 1.6 to 3.6 V, Ta = 25 °C, Typ. value
DD
10,000
1,000
100
10
1
10
R
EXOSC external clock input characteristics
Unless otherwise specified: V
DD
Item
EXOSC external clock duty ratio
High level Schmitt input threshold voltage V
Low level Schmitt input threshold voltage
Schmitt input hysteresis voltage
V
T+
EXOSC
21-6
Symbol
Condition
I
CLGOSC3.OSC3MD[1:0] bits = 0x2,
OSC3C
CLGOSC3.OSC3INV[1:0] bits = 0x0
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x1 (reference)
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x2
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x3
0x2
0x1
0x0
0x4
0x5
25
50
75
100
Ta [°C]
∆f
/∆IC
OSC3R
100
1,000
10,000
[kΩ]
CR3
= 1.2 to 3.6 V, V
= 0 V, Ta = -40 to 85 °C
SS
Symbol
t
t
= t
EXOSCD
EXOSCD
T+
V
T-
DV
T
t
= 1/f
EXOSC
EXOSC
t
EXOSCH
V
T+
V
T-
Seiko Epson Corporation
V
DD
OSC3 internal oscillation frequency-
power supply voltage characteristic
Ta = 25 °C, Typ. value
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.0
1.5
2.0
Condition
/t
EXOSCH
EXOSC
t
EXOSC
t
EXOSCH
V
T+
V
S1C17W03/W04 TECHNICAL MANUAL
Min.
Typ.
Max.
–
50
–
–
100
–
–
120
–
–
190
–
= C
= 100 pF
G3
D3
CLGOSC3.OSC3FQ[2:0] bits = 0x3
0x2
0x1
0x0
0x4
0x5
2.5
3.0
3.5
V
[V]
DD
Min.
Typ.
Max.
46
–
54
0.5 × V
–
0.8 × V
DD
DD
0.2 × V
–
0.5 × V
DD
DD
120
–
–
= 1/f
EXOSC
V
T+
T-
(Rev. 1.2)
Unit
%
%
%
%
4.0
Unit
%
V
V
mV
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