21 ELECTRICAL CHARACTERISTICS
21-10
Seiko Epson Corporation
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
CLK_SVD3
SVDCTL.MODEN
SVDCTL.SVDC[4:0]
SVDINTF.SVDDT
t
SVD
t
SVDEN
Invalid
Valid
Valid
Invalid
0x1e
0x10
SVD circuit current - power supply voltage characteristic
Ta = 25
°
C, SVDCTL.SVDC[4:0] bits = 0x04, CLK_SVD3 = 32 kHz, Typ. value
0
1
2
3
4
5
6
25
20
15
10
5
0
V
DD
[
V
]
I
SVD
[
µ
A]
SVDCTL.SVDMD[1:0] bits = 0x0
0x1
0x2
0x3
21.9 UART (UART3) 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
Transfer baud rate
U
BRT1
Normal mode
150
–
921,600 bps
U
BRT2
IrDA mode
150
–
115,200 bps
21.10 Synchronous Serial Interface (SPIA) Characteristics
Unless otherwise specified: V
DD
= 1.8 to 5.5 V, V
SS
= 0 V, Ta = -40 to 85
°
C
Item
Symbol
Condition
V
DD
Min.
Typ.
Max.
Unit
SPICLKn cycle time
t
SCYC
4.5 to 5.5 V
250
–
–
ns
1.8 to 4.5 V
500
–
–
ns
SPICLKn High pulse width
t
SCKH
4.5 to 5.5 V
100
–
–
ns
1.8 to 4.5 V
200
–
–
ns
SPICLKn Low pulse width
t
SCKL
4.5 to 5.5 V
100
–
–
ns
1.8 to 4.5 V
200
–
–
ns
SDIn setup time
t
SDS
4.5 to 5.5 V
50
–
–
ns
1.8 to 4.5 V
80
–
–
ns
SDIn hold time
t
SDH
4.5 to 5.5 V
20
–
–
ns
1.8 to 4.5 V
30
–
–
ns
SDOn output delay time
t
SDO
C
L
= 30 pF
*
1
4.5 to 5.5 V
–
–
60
ns
1.8 to 4.5 V
–
–
90
ns
#SPISSn setup time
t
SSS
80
–
–
ns
#SPISSn High pulse width
t
SSH
100
–
–
ns
SDOn output start time
t
SDD
C
L
= 30 pF
*
1
–
–
90
ns
SDOn output stop time
t
SDZ
C
L
= 30 pF
*
1
–
–
80
ns
*
1 C
L
= Pin load