29 eleCTRiCal ChaRaCTeRiSTiCS
S1C17624/604/622/602/621 TeChniCal Manual
Seiko epson Corporation
29-13
RFC reference/sensor oscillation frequency-
RFC reference/sensor oscillation frequency-
temperature characteristic
temperature characteristic
(Resistive sensor DC/aC oscillation mode)
(Capacitive sensor DC oscillation mode)
R
REF
/R
SEN
= 100k
W
, C
REF
/C
SEN
= 1000pF, Typ. value
R
REF
/R
SEN
= 100k
W
, C
REF
/C
SEN
= 1000pF, Typ. value
-50
50
45
40
35
30
25
20
15
10
5
0
-25
0
25
50
75
100
Ta [
°C
]
f
RFCLK
[kHz]
V
DD
= 3.6 V
V
DD
= 1.8 V
-50
50
45
40
35
30
25
20
15
10
5
0
-25
0
25
50
75
100
Ta [
°C
]
f
RFCLK
[kHz]
V
DD
= 3.6 V
V
DD
= 1.8 V
S1C17624/604/622 R/F converter current consumption
Unless otherwise specified: V
DD
= 3.6V, V
SS
= 0V, Ta = 25
°
C, PCKEN[1:0] = 0x0 (OFF), C
REF
/C
SEN
= 1000pF, R
REF
/R
SEN
= 100k
W
,
TCCLK = 8MHz
item
Symbol
Condition
Min.
Typ.
Max.
unit
R/F converter operating current
*
1
I
RFC
Resistive sensor DC/AC oscillation mode
110
160
µA
Capacitive sensor DC oscillation mode
120
180
µA
*
1 This value is added to the current consumption in HALT mode or current consumption during execution when the R/F converter is
active. Current consumption depends on the V
DD
voltage, reference capacitance/sensor capacitance, and reference/sensor oscilla-
tion frequency.
S1C17602/621 R/F converter current consumption
Unless otherwise specified: V
DD
= 3.6V, V
SS
= 0V, Ta = 25
°
C, PCKEN[1:0] = 0x0 (OFF), C
REF
/C
SEN
= 1000pF, R
REF
/R
SEN
= 100k
W
,
TCCLK = 8MHz
item
Symbol
Condition
Min.
Typ.
Max.
unit
R/F converter operating current
*
1
I
RFC
Resistive sensor DC/AC oscillation mode
140
200
µA
Capacitive sensor DC oscillation mode
150
220
µA
*
1 This value is added to the current consumption in HALT mode or current consumption during execution when the R/F converter is
active. Current consumption depends on the V
DD
voltage, reference capacitance/sensor capacitance, and reference/sensor oscilla-
tion frequency.
RFC reference/sensor oscillation current consumption-frequency characteristic
(Resistive sensor DC/aC oscillation mode)
C
REF
/C
SEN
= 1000pF, Typ. value
1
10
100
1000
2500
2000
1500
1000
500
0
10000
f
RFCLK
[kHz]
I
RFC
[
µ
A]
V
DD
= 3.6 V
V
DD
= 1.8 V
1
10
100
1000
2500
2000
1500
1000
500
0
10000
f
RFCLK
[kHz]
I
RFC
[
µ
A]
V
DD
= 3.6 V
V
DD
= 1.8 V
<S1C17624/604/622>
<S1C17602/621>