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19.4
analog Circuit Characteristics and Current Consumption
19.4.1
lCD Driver
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.
S1C63004/008/016 lCD drive voltage (V
Unless otherwise specified: V
DD
When a checker pattern is displayed, No panel load, A 1 MΩ load resistor is connected between V
and between V
and V
.
SS
C3
Item
LCD drive voltage
Notes:
• Depending on the panel load, when V
specifications above.
• Contrast settings to set "V
"LCD drive voltage - supply voltage characteristic (1/3 bias, V
tion 19.8, "Characteristics Curves (reference value)."
S1C63004/008/016 lCD drive voltage (V
Unless otherwise specified: V
DD
A 1 MΩ load resistor is connected between V
Item
LCD drive voltage
Note:
V
reference cannot be set in the 1.5 V low-voltage type, as the maximum operating voltage is 1.7 V.
C2
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
C1
=1.2 to 1.7V (1.5V type) or V
=1.8 to 5.5V (3V type), V
DD
Symbol
V
C1
V
C2
V
LC[3:0]=0H
C3
LC[3:0]=1H
LC[3:0]=2H
LC[3:0]=3H
LC[3:0]=4H
LC[3:0]=5H
LC[3:0]=6H
LC[3:0]=7H
LC[3:0]=8H
LC[3:0]=9H
LC[3:0]=AH
LC[3:0]=BH
LC[3:0]=CH
LC[3:0]=DH
LC[3:0]=EH
LC[3:0]=FH
is 1.2 V or lower, the LCD drive voltage does not measure up to the
DD
Max. > V
" are impossible, as the V
C1
DD
C2
=1.8 to 5.5V, V
=0V, Ta=25°C, C
SS
and V
, between V
SS
C1
Symbol
V
C1
V
C2
V
LC[3:0]=0H
C3
LC[3:0]=1H
LC[3:0]=2H
LC[3:0]=3H
LC[3:0]=4H
LC[3:0]=5H
LC[3:0]=6H
LC[3:0]=7H
LC[3:0]=8H
LC[3:0]=9H
LC[3:0]=AH
LC[3:0]=BH
LC[3:0]=CH
LC[3:0]=DH
LC[3:0]=EH
LC[3:0]=FH
Seiko epson Corporation
19 eleCTRiCal ChaRaCTeRiSTiCS
reference)
=0V, Ta=25°C, C
SS
Condition
voltage is always lower than V
C1
reference), 1.5 V low-voltage type" in Sec-
C1
reference)
–C
=0.1µF, When a checker pattern is displayed, No panel load
1
6
and V
, and between V
SS
C2
SS
Condition
–C
=0.1µF,
1
6
and V
, between V
and V
SS
C1
SS
Min.
Typ.
Max.
0.335 ×
0.363 ×
–
V
(typ.)
V
(typ.)
C3
C3
0.646 ×
0.700 ×
–
V
(typ.)
V
(typ.)
C3
C3
2.75
2.84
2.92
3.00
3.08
3.17
3.25
Typ. ×
Typ. ×
3.34
3.42
0.96
1.04
3.50
3.58
3.67
3.75
3.83
3.91
4.00
DD
and V
.
C3
Min.
Typ.
Max.
0.323 ×
0.349 ×
–
V
(typ.)
V
(typ.)
C3
C3
0.650 ×
0.704 ×
–
V
(typ.)
V
(typ.)
C3
C3
2.84
2.92
3.01
3.09
3.17
3.26
3.34
Typ. ×
Typ. ×
3.43
0.96
3.51
1.04
3.60
3.68
3.77
3.85
3.94
4.02
4.11
,
C2
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
. See
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
19-3
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