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16.8.5
LCD Characteristics
Table 16.25 shows the LCD characteristics.
Table 16.25 LCD Characteristics
V
= 2.7 V to 5.5 V, AV
CC
Item
Symbol
Segment driver
V
DS
step-down voltage
Common driver
V
DC
step-down voltage
LCD power supply
R
LCD
split-resistance
Liquid crystal
V
LCD
display voltage
Notes: 1. The voltage step-down from power supply pins V1, V2, V3, and V
pin or common pin.
2. When the liquid crystal display voltage is supplied from an external power supply,
ensure that the following relationship is maintained: V
= 2.7 V to 5.5 V, V
CC
Applicable
Pins
Min
SEG
to
—
1
SEG
25
COM
to
—
1
COM
4
1.5
V
2.7
1
= AV
= 0.0 V, unless otherwise specified
SS
SS
Values
Typ
Max
Unit
—
0.6
V
—
0.3
V
3.0
7.0
MΩ
—
5.5
V
≥ V1 ≥ V2 ≥ V3 ≥ V
CC
Rev. 6.00, 08/04, page 503 of 628
Reference
Figure
Test Condition
*
1
I
= 2 µA
D
V1 = 2.7 V to 5.5 V
*
1
I
= 2 µA
D
V1 = 2.7 V to 5.5 V
Between V1 and
V
SS
*
2
to each segment
SS
.
SS
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