Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
23-6
23.5.
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
= 0 V, Ta = -40 to 85 °C
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Oscillation start time
t
staI
–
–
3
µs
Oscillation frequency
f
IOSC
CLGIOSC.IOSCFQ[1:0] bits = 0x2,
PWGACTL.REGSEL bit = 1
7.2
8
8.4
MHz
CLGIOSC.IOSCFQ[1:0] bits = 0x1,
PWGACTL.REGSEL bit = 1
1.8
2
2.1
MHz
CLGIOSC.IOSCFQ[1:0] bits = 0x0,
PWGACTL.REGSEL bit = 1
0.9
1
1.05
MHz
CLGIOSC.IOSCFQ[1:0] bits = 0x1,
PWGACTL.REGSEL bit = 0
1.62
1.8
1.89
MHz
CLGIOSC.IOSCFQ[1:0] bits = 0x0,
PWGACTL.REGSEL bit = 0
0.78
0.9
1.02
MHz
IOSC oscillation frequency-temperature characteristic
V
DD
= 1.8 to 5.5 V, PWGACTL.REGSEL bit = 1, Typ. value
V
DD
= 1.8 to 5. 5 V, PWGACTL.REGSEL bit = 0, Typ. value
6
Summary of Contents for S1C31D50
Page 461: ...25 1 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 25 Package TQFP12 48PIN ...
Page 462: ...25 2 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP13 64PIN ...
Page 463: ...25 3 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 TQFP14 80PIN ...
Page 464: ...25 4 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP15 100PIN ...