20 eleCTRiCal ChaRaCTeRiSTiCS
S1C17153 TeChniCal Manual
Seiko epson Corporation
20-5
(Rev. 1.0)
SPi Characteristics
20.7
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
= 2.0 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
item
Symbol
Min.
Typ.
Max.
unit
SPICLK
x
cycle time
t
SPCK
500
–
–
ns
SDI
x
setup time
t
SDS
70
–
–
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
= 2.0 to 3.6V, V
SS
= 0V, Ta = -40 to 85°C
item
Symbol
Min.
Typ.
Max.
unit
SPICLK
x
cycle time
t
SPCK
500
–
–
ns
SDI
x
setup time
t
SDS
30
–
–
ns
SDI
x
hold time
t
SDH
50
–
–
ns
SDO
x
output delay time
t
SDO
–
–
80
ns
lCD Driver Characteristics
20.8
The typical values in the following LCD driver characteristics varies depending on the panel load (panel size, drive
duty, number of display pixels and display contents), so evaluate them by connecting to the actually used LCD panel.
lCD drive voltage
Unless otherwise specified: V
DD
= 2.2 to 3.6V, V
SS
= 0V, Ta = 25
°
C, C
2
–C
5
= 0.1µF, Checker pattern displayed, No panel load,
VCSEL = 1 (V
C2
reference voltage), LCD_BCLK[1:0] = 0x1 (2kHz/OSC1A = 32kHz source clock),
FRMCNT[1:0] = 0x1 (64Hz/OSC1A = 32kHz (LCLK = 512Hz)), LDUTY[2:0] = 0x3 (1/4 duty), DSPC[1:0] = 0x1(Normal display)
item
Symbol
Condition
Min.
Typ.
Max.
unit
LCD drive voltage
(V
C2
reference voltage)
V
C1
Connect 1M
W
load resistor between V
SS
and V
C1
Typ.
×
0.96
0.974
Typ.
×
1.04
V
V
C2
Connect 1M
W
load resistor between V
SS
and V
C2
1.958
V
V
C3
Connect 1M
W
load resistor between V
SS
and V
C3
2.900
V
Unless otherwise specified: V
DD
= 2.0 to 3.6V, V
SS
= 0V, Ta = 25
°
C, C
2
–C
5
= 0.1µF, Checker pattern displayed, No panel load,
VCSEL = 0 (V
C1
reference voltage), LCD_BCLK[1:0] = 0x1 (2kHz/OSC1A = 32kHz source clock),
FRMCNT[1:0] = 0x1 (64Hz/OSC1A = 32kHz (LCLK = 512Hz)), LDUTY[2:0] = 0x3 (1/4 duty), DSPC[1:0] = 0x1(Normal display)
item
Symbol
Condition
Min.
Typ.
Max.
unit
LCD drive voltage
(V
C1
reference voltage)
V
C1
Connect 1M
W
load resistor between V
SS
and V
C1
Typ.
×
0.96
0.977
Typ.
×
1.04
V
V
C2
Connect 1M
W
load resistor between V
SS
and V
C2
1.884
V
V
C3
Connect 1M
W
load resistor between V
SS
and V
C3
2.800
V