19 eleCTRiCal ChaRaCTeRiSTiCS
19-8
Seiko epson Corporation
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
Serial interface aC Characteristics
19.6
[S1C63004/008/016]
Master mode
Unless otherwise specified: V
DD
=1.5V (1.5V type) or 3.0V (3V type), V
SS
=0V, Ta=-40 to 85°C, V
IH
=0.8V
DD
, V
IL
=0.2V
DD
, V
OH
=0.8V
DD
,
V
OL
=0.2V
DD
Item
Symbol
Min.
Typ.
Max.
Unit
Transmit data output delay time
t
SMD
–
–
200
ns
Receive data input set-up time
t
SMS
400
–
–
ns
Receive data input hold time
t
SMH
200
–
–
ns
Note that the maximum clock frequency is limited to 1 MHz.
Slave mode
Unless otherwise specified: V
DD
=1.5V (1.5V type) or 3.0V (3V type), V
SS
=0V, Ta=-40 to 85°C, V
IH
=0.8V
DD
, V
IL
=0.2V
DD
, V
OH
=0.8V
DD
,
V
OL
=0.2V
DD
Item
Symbol
Min.
Typ.
Max.
Unit
Transmit data output delay time
t
SSD
–
–
200
ns
Receive data input set-up time
t
SSS
400
–
–
ns
Receive data input hold time
t
SSH
200
–
–
ns
Note that the maximum clock frequency is limited to 1 MHz.
<Master mode>
SCLK OUT
SOUT
SIN
V
OH
V
OL
t
sms
t
smh
t
smd
V
OH
V
IH
V
IL
V
OL
<Slave mode>
SCLK IN
SOUT
SIN
V
IH1
V
OH
V
OL
t
sss
t
ssh
t
ssd
V
IH
V
IL
V
IL1
Timing Chart
19.7
System clock switching
OSCC
CLKCHG
*
10 msec min.
*
1 instruction execution time or longer