29 eleCTRiCal ChaRaCTeRiSTiCS
S1C17624/604/622/602/621 TeChniCal Manual
Seiko epson Corporation
29-5
Current consumption-temperature characteristic during execution with iOSC + clock gear
IOSC = internal oscillator, OSC1 = OFF, OSC3 = OFF, PCKEN[1:0] = 0x3, VD1MD = 0, Typ. value
-50
1200
1000
800
600
400
200
0
-25
0
25
50
75
100
Ta [
°
C]
I
EXE3
[
µ
A]
1/1
1/2
1/4
1/8
Gear ratio
-50
1200
1000
800
600
400
200
0
-25
0
25
50
75
100
Ta [
°
C]
I
EXE3
[
µ
A]
1/1
1/2
1/4
1/8
Gear ratio
<S1C17624/604/622>
<S1C17602/621>
Oscillation Characteristics
29.4
Oscillation characteristics change depending on conditions (board pattern, components used, etc.). Use the follow-
ing characteristics as reference values. See Appendix E for recommended resonators.
OSC1 crystal oscillation
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = 25°C, C
G1
= 25pF external, C
D1
= built-in, R
f1
= built-in
item
Symbol
Condition
Min.
Typ.
Max.
unit
Oscillation start time
*
1
t
sta
3
s
Built-in drain capacitance
C
D1
In case of the chip
10
pF
*
1 Crystal resonator = MC-146: manufactured by EPSON TOYOCOM (R
1
= 65k
W
Max., C
L
= 12.5pF)
OSC3 crystal oscillation
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = 25°C, R
F3
= 1M
W
item
Symbol
Condition
Min.
Typ.
Max.
unit
Oscillation start time
*
1
t
sta
20
ms
*
1 Crystal resonator = MA-406: manufactured by EPSON TOYOCOM (R
1
= 150
W
, C
L
= 10pF)
OSC3 ceramic oscillation
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = 25°C, R
F3
= 1M
W
item
Symbol
Condition
Min.
Typ.
Max.
unit
Oscillation start time
*
1
t
sta
1
ms
*
1 Ceramic resonator = CSTR4M00G53095-R0: manufactured by Murata Manufacturing Co., Ltd (C
G3
= C
D3
= 15pF built-in)
iOSC oscillation
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = -25 to 70
°
C
item
Symbol
Condition
Min.
Typ.
Max.
unit
Oscillation start time
t
sta
5
µs
Oscillation frequency
f
IOSC
Normal operation mode
2.16
2.70
3.24
MHz