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Unless otherwise specified: V
DD
item
SCL cycle time
Start condition hold time
Data output delay time
Stop condition hold time
* f
: System operating clock frequency
SYS
29.9
lCD Driver Characteristics
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
VCSEL = 1 (V
reference voltage)
C2
item
Symbol
LCD drive voltage
V
(V
reference voltage)
C2
V
V
Unless otherwise specified: V
DD
VCSEL = 0 (V
reference voltage)
C1
item
Symbol
LCD drive voltage
V
(V
reference voltage)
C1
V
V
S1C17624/604/622/602/621 TeChniCal Manual
= 1.8 to 3.6V, V
= 0V, Ta = -25 to 70°C
SS
Symbol
t
SCL
t
STH
t
SDD
t
SPH
= 2.5 to 3.6V, V
= 0V, Ta = 25°C, C
SS
Connect 1MW load resistor between V
C1
Connect 1MW load resistor between V
C2
Connect 1MW load resistor
C3
between V
and V
SS
C3
= 1.8 to 3.6V, V
= 0V, Ta = 25°C, C
SS
Connect 1MW load resistor between V
C1
Connect 1MW load resistor between V
C2
Connect 1MW load resistor
C3
between V
and V
SS
C3
Seiko epson Corporation
29 eleCTRiCal ChaRaCTeRiSTiCS
Min.
2500
1/f
SYS
1/f
SYS
1/f
SYS
–C
= 0.1µF, Checker pattern displayed, No panel load,
2
5
Condition
and V
SS
C1
and V
SS
C2
LC[3:0] = 0x0
LC[3:0] = 0x1
LC[3:0] = 0x2
LC[3:0] = 0x3
LC[3:0] = 0x4
LC[3:0] = 0x5
LC[3:0] = 0x6
LC[3:0] = 0x7
LC[3:0] = 0x8
LC[3:0] = 0x9
LC[3:0] = 0xa
LC[3:0] = 0xb
LC[3:0] = 0xc
LC[3:0] = 0xd
LC[3:0] = 0xe
LC[3:0] = 0xf
–C
= 0.1µF, Checker pattern displayed, No panel load,
2
5
Condition
and V
SS
C1
and V
SS
C2
LC[3:0] = 0x0
LC[3:0] = 0x1
LC[3:0] = 0x2
LC[3:0] = 0x3
LC[3:0] = 0x4
LC[3:0] = 0x5
LC[3:0] = 0x6
LC[3:0] = 0x7
LC[3:0] = 0x8
LC[3:0] = 0x9
LC[3:0] = 0xa
LC[3:0] = 0xb
LC[3:0] = 0xc
LC[3:0] = 0xd
LC[3:0] = 0xe
LC[3:0] = 0xf
Typ.
Max.
Min.
Typ.
Max.
0.324 ×
0.350 ×
V
(Typ.)
V
(Typ.)
C3
C3
0.649 ×
0.701 ×
V
(Typ.)
V
(Typ.)
C3
C3
2.56
2.62
2.68
2.74
2.80
2.86
2.92
Typ. ×
2.98
Typ. ×
0.96
1.04
3.04
3.10
3.15
3.21
3.27
3.33
3.39
3.45
Min.
Typ.
Max.
0.333 ×
0.360 ×
V
(Typ.)
V
(Typ.)
C3
C3
0.645 ×
0.696 ×
V
(Typ.)
V
(Typ.)
C3
C3
2.50
2.56
2.61
2.67
2.73
2.79
2.85
Typ. ×
2.90
Typ. ×
0.96
1.04
2.96
3.02
3.08
3.14
3.19
3.25
3.31
3.37
unit
ns
ns
ns
ns
unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
29-9
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