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29 eleCTRiCal ChaRaCTeRiSTiCS
lCD drive voltage-supply voltage characteristic
(when V
reference voltage is selected)
C2
When a 1 MW load resistor is connected between V
(no panel load), Ta = 25°C, Typ. value
4.0
3.0
2.0
1.0
1.5
2.0
2.5
lCD drive voltage-temperature characteristic
Typ. value (V
, V
reference voltage)
C2
C1
1.05V
C3
1.04V
C3
1.03V
C3
1.02V
C3
1.01V
C3
1.00V
C3
0.99V
C3
0.98V
C3
0.97V
C3
0.96V
C3
0.95V
C3
-50
-25
0
SeG/COM output characteristics
Unless otherwise specified: V
DD
item
Segment/Common output current
S1C17624/604/622 lCD driver circuit current consumption
Unless otherwise specified: V
DD
PCKEN[1:0] = 0x0 (OFF), FLCYC[2:0] = 0x4 (1 cycle), CCLKGR[1:0] = 0x0 (gear ratio 1/1)
item
LCD circuit current with V
reference
C2
*1
voltage
Heavy load protection mode
LCD circuit current with V
reference
C2
*1
voltage
LCD circuit current with V
reference
C1
*1
voltage
Heavy load protection mode
LCD circuit current with V
reference
C1
*1
voltage
*1 This value is added to the current consumption in HALT mode or current consumption during execution when the LCD circuit is ac-
tive. Current consumption increases according to the display contents and panel load.
29-10
and V
SS
C3
LCx = 0xf
LCx = 0x0
3.0
3.5
4.0
V
[V]
DD
25
50
75
100
Ta [°C]
= 1.8 to 3.6V, V
= 0V, Ta = -25 to 70°C
SS
Symbol
I
SEGxx, COMxx, V
SEGH
I
SEGxx, COMxx, V
SEGL
= 1.8 to 3.6V, V
= 0V, Ta = 25°C, C
SS
Symbol
I
DSPC[1:0] = 0x1 (checker pattern),
LCD2
LC[3:0] = 0xf, OSC1 = 32kHz, V
to 3.6V, VCSEL = 1
I
DSPC[1:0] = 0x1 (checker pattern),
LCD2H
LC[3:0] = 0xf, OSC1 = 32kHz, V
to 3.6V, LHVLD = 1, VCSEL = 1
I
DSPC[1:0] = 0x1 (checker pattern),
LCD1
LC[3:0] = 0xf, OSC1 = 32kHz, V
to 3.6V, VCSEL = 0
I
DSPC[1:0] = 0x1 (checker pattern),
LCD1H
LC[3:0] = 0xf, OSC1 = 32kHz, V
to 3.6V, LHVLD = 1, VCSEL = 0
Seiko epson Corporation
lCD drive voltage-supply voltage characteristic
(when V
reference voltage is selected)
C1
When a 1 MW load resistor is connected between V
(no panel load), Ta = 25°C, Typ. value
4.0
3.0
2.0
1.0
1.5
1.8
2.1
lCD drive voltage-load characteristic
When a load is connected to the V
LCx = 0xf, Ta = 25°C, Typ. value
3.60
3.50
3.40
3.30
3.20
3.10
3.00
2.90
0
4
8
Condition
= V
- 0.1V
SEGH
C3
= 0.1V
SEGL
–C
= 0.1µF, No LCD panel load,
2
5
Condition
= 2.5
DD
= 2.5
DD
= 1.8
DD
= 1.8
DD
S1C17624/604/622/602/621 TeChniCal Manual
and V
SS
C3
LCx = 0xf
LCx = 0x0
2.4
2.7
3.0
V
[V]
DD
pin only
C3
VCSEL = 1
VCSEL = 0
12
16
20
-I
[µA]
VC3
Min.
Typ.
Max.
-5
5
Min.
Typ.
Max.
1.7
5
21
32
2.6
8
13
20
unit
µA
µA
unit
µA
µA
µA
µA
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