HD6433802H Datasheet, PDF (345/435 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

14.2.5 LCD Characteristics
Table 14.6 shows the LCD characteristics.
Table 14.6 LCD Characteristics
V_CC = 1.8 V to 5.5 V, AV_CC = 1.8 V to 5.5 V, V_SS = AV_SS = 0.0 V, T_a = –20°C to +75°C
(including subactive mode) unless otherwise specified.
Applicable Test
Values
Reference
Item
Symbol Pins
Conditions
Min Typ Max Unit Figure
Segment driver V_DS
drop voltage
Common driver V_DC
drop voltage
LCD power supply R_LCD
split-resistance
Liquid crystal
display voltage
V_LCD
SEG₁ to
SEG₂₅
COM₁ to
COM₄
V₁
I_D = 2 µA
— — 0.6 V ^*1
V₁ = 2.7 V to 5.5 V
I_D = 2 µA
— — 0.3 V ^*1
V₁ = 2.7 V to 5.5 V
Between V₁ and 0.5 3.0 9.0 MΩ
V_SS
2.2 — 5.5 V ^*2
Notes: 1. The voltage drop from power supply pins V₁, V₂, V₃, and VSS to each segment pin or
common pin.
2. When the liquid crystal display voltage is supplied from an external power source,
ensure that the following relationship is maintained: V_CC ≥ V₁ ≥ V₂ ≥ V₃ ≥ V_SS.
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