19 ELECTRICAL CHARACTERISTICS
19-4
Seiko Epson Corporation
S1C17M12/M13 TECHNICAL MANUAL
(Rev. 1.2)
Reset hold circuit characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= V
SS2
= 0 V, Ta = -40 to 85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Reset hold time
*
1
t
RSTR
0.5
–
0.9
ms
*
1 Time until the internal reset signal is negated after the reset request is canceled.
19.5 Clock Generator (CLG) Characteristics
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.
IOSC oscillator circuit characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= V
SS2
= 0 V, Ta = -40 to 85 °C
Item
Symbol
Condition
Ta
Min.
Typ.
Max.
Unit
Oscillation start time
t
sta
I
–
–
3
µs
Oscillation frequency
f
IOSC
25
°
C
679
700
721
kHz
-40 to 85
°
C
651
700
749
kHz
IOSC oscillation frequency-temperature characteristic
V
DD
= 1.8 to 5.5 V, Typ. value
-50
900
850
800
750
700
650
600
550
500
-25
0
25
50
75
100
Ta [
°
C]
f
IOSC
[k
Hz
]
OSC3 oscillator circuit characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= V
SS2
= 0 V, Ta = 25
°
C
Item
Symbol
Condition
Ta
Min.
Typ.
Max.
Unit
Internal oscillator
oscillation start time
t
sta3I
CLGOSC3.OSC3MD[1:0] bits = 0x0
–
–
3
µs
Internal oscillator
oscillation frequency
f
OSC3I
CLGOSC3.OSC3MD[1:0] bits = 0x0,
CLGOSC3.OSC3FQ[1:0] bits = 0x3
25
°
C
15.76
16.00
16.25
MHz
-10 to 60
°
C
15.68
16.00
16.32
MHz
-40 to 85
°
C
15.60
16.00
16.40
MHz
CLGOSC3.OSC3MD[1:0] bits = 0x0,
CLGOSC3.OSC3FQ[1:0] bits = 0x2
25
°
C
11.73
12.10
12.47
MHz
-40 to 85
°
C
11.61
12.10
12.59
MHz
CLGOSC3.OSC3MD[1:0] bits = 0x0,
CLGOSC3.OSC3FQ[1:0] bits = 0x1
25
°
C
7.95
8.20
8.45
MHz
-40 to 85
°
C
7.87
8.20
8.53
MHz
CLGOSC3.OSC3MD[1:0] bits = 0x0,
CLGOSC3.OSC3FQ[1:0] bits = 0x0
25
°
C
3.93
4.10
4.27
MHz
-40 to 85
°
C
3.89
4.10
4.31
MHz
Crystal/ceramic oscillator
oscillation start time
*
1
t
sta3C
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x0
–
–
10.0
ms
Crystal/ceramic oscillator
internal gate capacitance
C
GI3C
CLGOSC3.OSC3MD[1:0] bits = 0x2
–
8
–
pF
Crystal/ceramic oscillator
internal drain capacitance
C
DI3C
CLGOSC3.OSC3MD[1:0] bits = 0x2
–
8
–
pF
Crystal/ceramic oscillator
circuit current - oscillation
inverter drivability ratio
I
OSC3C
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x0
–
50
–
%
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x1 (reference)
–
100
–
%
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x2
–
120
–
%
CLGOSC3.OSC3MD[1:0] bits = 0x2,
CLGOSC3.OSC3INV[1:0] bits = 0x3
–
190
–
%
*
2 Ceramic resonator = CSBLA_J (manufactured by Murata Manufacturing Co., Ltd., 1 MHz), C
G3
= C
D3
= 100 pF