Renesas H8/38024 Series, Hardware Manual

Page: 533 / 661

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