22 ELECTRICAL CHARACTERISTICS
S1C17F13 TeChniCal Manual
Seiko epson Corporation
22-9
(Rev. 1.0)
UART (UART) Characteristics
22.9
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
Transfer baud rate
U
BRT1
Normal mode
150
–
460,800 bps
U
BRT2
IrDA mode
150
–
115,200 bps
Synchronous Serial Interface (SPIA) Characteristics
22.10
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
SPICLK
n
cycle time
t
SCYC
500
–
–
ns
SPICLK
n
High pulse width
t
SCKH
200
–
–
ns
SPICLK
n
Low pulse width
t
SCKL
200
–
–
ns
SDI
n
setup time
t
SDS
70
–
–
ns
SDI
n
hold time
t
SDH
10
–
–
ns
SDO
n
output delay time
t
SDO
C
L
= 30 pF
*
1
–
–
100
ns
#SPISS
n
setup time
t
SSS
70
–
–
ns
#SPISS
n
High pulse width
t
SSH
80
–
–
ns
SDO
n
output start time
t
SDD
C
L
= 30 pF
*
1
–
–
100
ns
SDO
n
output stop time
t
SDZ
C
L
= 30 pF
*
1
–
–
80
ns
*
1 C
L
= Pin load
Common to master and slave modes
SPICLK
n
(CPOL, CPHA) = (1, 0) or (0, 1)
SPICLK
n
(CPOL, CPHA) = (1, 1) or (0, 0)
SDI
n
SDO
n
t
SCYC
t
SDO
t
SCKH
t
SDS
t
SDH
t
SCKL
Slave mode
#SPISS
n
SPICLK
n
(CPOL, CPHA) = (0, 1)
SPICLK
n
(CPOL, CPHA) = (1, 0)
SDI
n
SDO
n
t
SDD
Hi-Z
t
SSH
t
SDZ
t
SSS