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| HD6473887 Datasheet, PDF (407/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer | |||
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15.2.5 LCD Characteristics
Table 15-7 shows the LCD characteristics of the H8/3887 Series.
Table 15-7 LCD Characteristics (H8/3887 Series)
VCC = 1.8 V to 5.5 V, AVCC = 1.8 V to 5.5 V, VSS = AVSS = 0.0 V, Ta = â20°C to +75°C
(including subactive mode) unless otherwise indicated.
Applicable Values
Test
Item
Symbol Pins
Min Typ Max Unit Conditions
Notes
Segment driver VDS
drop voltage
Common driver VDC
drop voltage
LCD power
RLCD
supply split-
resistance
SEG1 to â â 0.6 V
SEG40
COM1 to â â 0.3 V
COM4
0.5 3.0 9.0 M
ID = 2 µA
*1
V1 = 2.7 to 5.5 V
ID = 2 µA
*1
V1 = 2.7 to 5.5 V
Between V1
and VSS
On-chip liquid VLP
V0
crystal display
power supply
voltage
â 5.0 â V
*2
Reference
value
Liquid crystal VLCD
V1
2.2 â 5.5 V
*3
display voltage
Notes: 1. The voltage drop from power supply pins V1, V2, V3, and VSS to each segment pin or
common pin.
2. The output voltage in step-up constant-voltage power supply operation.
3. When the liquid crystal display voltage is supplied from an external power source,
ensure that the following relationship is maintained: V1 V 2 V 3 V SS.
390
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