22 ELECTRICAL CHARACTERISTICS
S1C17F13 TeChniCal Manual
Seiko epson Corporation
22-5
(Rev. 1.0)
Reset hold circuit characteristics
Unless otherwise specified: V
DD
= 2.0 to 3.6 V, V
SS
= 0 V, Ta = -20 to 70 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Reset hold time
*
1
t
RSTR
–
–
150
µs
*
1 Time until the internal reset signal is negated after the reset request is canceled.
Clock Generator (CLG) Characteristics
22.5
Oscillator circuit characteristics including resonators change depending on conditions (board pattern, components
used, etc.). Use these characteristic values as a reference and perform matching evaluation using the actual printed
circuit board.
OSC1B oscillator circuit characteristics
Unless otherwise specified: V
DD
= 2.0 to 3.6V, V
SS
= 0V, Ta = 25
°
C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
1B
200
µs
Oscillation frequency
*
1
*
2
f
OSC1B
Typ.
×
0.94
32.00
Typ.
×
1.06
kHz
Dependence of oscillation
frequency on temperature
*
2
Tf
OSC1B
Frequency accuracy per
±
1
°
C change in
temperature (with reference to 25
°
C)
±
0.12
±
0.3
%/
°
C
*
1 In chip mounting, the value may exceed the range shown above according to the mount condition on the board.
*
2 Reference value
OSC1B oscillation frequency-temperature characteristic
Typ. value
-50
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
-25
0
25
50
75
100
Ta [
°
C]
f
OSC1B
[k
Hz
]
OSC1A oscillator circuit characteristics
Unless otherwise specified: V
DD
= 2.0 to 3.6 V, V
SS
= 0 V, Ta = 25
°
C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
1A
–
–
3
s
Internal gate capacitance
C
GI1
–
7
–
pF
Internal drain capacitance
C
DI1
–
3
–
pF
OSC3B oscillator circuit characteristics
Unless otherwise specified: V
DD
= 2.0 to 3.6 V, V
SS
= 0 V, Ta = 25 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
3B
–
–
5
µs
Oscillation frequency
f
OSC3B
CLGOSC3B.OSC3BFREQ[1:0] bits = 0x3
18.0
20.0
22.0
MHz
CLGOSC3B.OSC3BFREQ[1:0] bits = 0x2
14.4
16.0
17.6
MHz
CLGOSC3B.OSC3BFREQ[1:0] bits = 0x1
10.8
12.0
13.2
MHz
CLGOSC3B.OSC3BFREQ[1:0] bits = 0x0
7.2
8.0
8.8
MHz