29 eleCTRiCal ChaRaCTeRiSTiCS
29-8
Seiko epson Corporation
S1C17624/604/622/602/621 TeChniCal Manual
Reset pulse
#RESET
t
SR
V
IH
V
IL
Power-on reset timing
Power on
V
DD
t
PSR
V
SR
#RESET
#RESET
V
SS
0.5V
DD
0.1V
DD
Cres
note: Be sure to set the #RESET pin to 0.1 V
DD
or less when performing a power-on reset after the
power is turned off.
SPi Characteristics
29.7
SPICLK
x
(CPOL = 0)
SPICLK
x
(CPOL = 1)
SDI
x
SDO
x
t
SPCK
t
SDO
t
SDH
t
SDS
Master mode
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = -25 to 70°C
item
Symbol
Min.
Typ.
Max.
unit
SPICLK
x
cycle time
t
SPCK
500
ns
SDI
x
setup time
t
SDS
120
ns
SDI
x
hold time
t
SDH
10
ns
SDO
x
output delay time
t
SDO
20
ns
Slave mode
Unless otherwise specified: V
DD
= 1.8 to 3.6V, V
SS
= 0V, Ta = -25 to 70°C
item
Symbol
Min.
Typ.
Max.
unit
SPICLK
x
cycle time
t
SPCK
500
ns
SDI
x
setup time
t
SDS
10
ns
SDI
x
hold time
t
SDH
10
ns
SDO
x
output delay time
t
SDO
130
ns
i
29.8
2
C Characteristics
SCL
x
SDA
x
t
SCL
t
STH
t
SDD
t
SPH