31 ELECTRICAL CHARACTERISTICS
31-12
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
SPI master mode (fast mode)
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
Item
Symbol
Min.
Typ.
Max.
Unit
spi_ck cycle time
t
SPCK
85
–
–
ns
spi_di setup time
t
SDS
85
–
–
ns
spi_di hold time
t
SDH
0
–
–
ns
spi_do output delay time
t
SDO
–
–
10
ns
SPI slave mode
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
Item
Symbol
Min.
Typ.
Max.
Unit
spi_ck cycle time
t
SPCK
*
2
–
–
ns
spi_di setup time
t
SDS
10 + t
PCLK
–
–
ns
spi_di hold time
t
SDH
10
–
–
ns
spi_do output delay time
t
SDO
–
–
80
ns
spi_do last bit delay time
t
SDD
2
*
t
PCLK
–
–
ns
*
1) t
PCLK
: PCLK1 or PCLK2 (peripheral module clock supplied from the CMU) clock cycle time
*
2) t
SPCK(min.)
= 80ns if t
PCLK
≤
60ns or t
SPCK(min.)
= “20 + t
PCLK
” ns if t
PCLK
> 60ns
I
2
C master/slave mode (USI/USIL)
t
REP
t
SDO
t
SPH
t
STH
T8 output clock
i2c_scl (USI_CK/USIL_CK) (master)
i2c_scl (USI_CK/USIL_CK) (slave)
i2c_sda (USI_DI/USI_CS/USIL_DI/USIL_CS) input
i2c_sda (USI_DI/USI_CS/USIL_DI/USIL_CS) output
Input data sampling point
for master and slave
I
2
C master mode
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
Item
Symbol
Min.
Typ.
Max.
Unit
i2c_scl cycle time
t
SCL
2500
–
–
ns
i2c_sda output delay time
t
SDO
–
–
2
*
t
T8
ns
Start condition hold time
t
STH
4
*
t
T8
–
–
ns
Stop condition hold time
t
SPH
3
*
t
T8
–
–
ns
I
2
C slave mode
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
Item
Symbol
Min.
Typ.
Max.
Unit
i2c_scl cycle time
t
SCL
2500
–
–
ns
i2c_scl input clock response delay time
t
REP
2
*
t
T8
–
–
ns
i2c_sda output delay time
t
SDO
–
–
2
*
t
T8
ns
Start condition hold time
t
STH
7
*
t
PCLK
–
–
ns
Stop condition hold time
t
SPH
7
*
t
PCLK
–
–
ns
t
PCLK
: PCLK1 or PCLK2 (peripheral module clock supplied from the CMU) clock cycle time
t
T8
= T8 output clock cycle time
LCD SPI mode (USIL)
lcds_ck (USIL_CK)
(LSCPOL = 0)
lcds_ck (USIL_CK)
(LSCPOL = 1)
lcds_do (USIL_DO)
t
SPCK
t
SDO
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
Item
Symbol
Min.
Typ.
Max.
Unit
spi_ck cycle time
t
SPCK
85 + t
PCLK
–
–
ns
spi_do output delay time
t
SDO
–
–
20
ns