19 eleCTRiCal ChaRaCTeRiSTiCS
S1C63003/004/008/016 TeChniCal Manual
Seiko epson Corporation
19-7
(Rev. 1.1)
Oscillation Characteristics
19.5
The oscillation characteristics change depending on the conditions (components used, board pattern, etc.). Use the
following characteristics as reference values.
OSC1 crystal oscillation circuit
Unless otherwise specified: V
DD
=1.1 to 5.5V, V
SS
=0V, Ta=25°C, Crystal resonator=C-002RX (R
1
=30k
Ω
Typ., C
L
=12.5pF),
C
G1
=25pF (external), C
D1
=Built-in
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
–
–
3
s
External gate capacitance
C
G1
Including the board capacitance
0
–
25
pF
Built-in drain capacitance
C
D1
In case of the chip
–
20
–
pF
Frequency/IC deviation
D
f/
D
IC
V
DD
=constant
-10
–
10
ppm
Frequency/voltage deviation
D
f/
D
V
–
–
1
ppm/V
Frequency adjustment range
D
f/
D
C
G
V
DD
=constant, C
G
=0 to 25pF
25
–
–
ppm
OSC3 ceramic oscillation circuit
[S1C63004/008/016]
3 V normal type
Unless otherwise specified: V
DD
=1.8 to 5.5V, V
SS
=0V, Ta=25°C, C
G3
=C
D3
=30pF
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
–
–
1
ms
1.5 V low-voltage type
Unless otherwise specified: V
DD
=1.1 to 1.7V, V
SS
=0V, Ta=25°C, C
G3
=C
D3
=30pF
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
–
–
3
ms
OSC3 CR oscillation circuit (external R type)
[S1C63004/008/016]
3 V normal type
Unless otherwise specified: V
DD
=1.8 to 5.5V, V
SS
=0V, Ta=25°C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
–
–
1
ms
Frequency/IC deviation
D
f/
D
IC
R
CR
=constant
-25
–
25
%
1.5 V low-voltage type
Unless otherwise specified: V
DD
=1.1 to 1.7V, V
SS
=0V, Ta=25°C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
–
–
1
ms
Frequency/IC deviation
D
f/
D
IC
R
CR
=constant
-33
–
33
%
OSC3 CR oscillation circuit (built-in R type)
[S1C63004/008/016]
Unless otherwise specified: V
DD
=1.1 to 5.5V, V
SS
=0V, Ta=25°C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation frequency
f
OSC3
Typ.
×
0.75
500
Typ.
×
1.25
kHz
Oscillation start time
t
sta
–
–
20
µs
OSC3 CR oscillation circuit (built-in R type)
[S1C63003]
Unless otherwise specified: V
DD
=1.1 to 5.5V, V
SS
=0V, Ta=25°C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation frequency
f
OSC3
Typ.
×
0.75
550
Typ.
×
1.25
kHz
Oscillation start time
t
sta
–
–
20
µs