CHAPTER 5 ELECTRICAL SPECIFICATIONS
User’s Manual U18438EJ2V0UD
64
LCD Characteristics (T
A
=
−
40 to +85
°
C)
(1) Resistance division method
(a) Static display mode (2.0 V
≤
LV
DD
≤
5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
LCD drive voltage
V
LCD
2.0
LV
DD
V
LCD divider resistor
Note 1
R
LCD
60 100 150 k
Ω
LCD output resistor
Note 2
(Common)
R
ODC
40 k
Ω
LCD output resistor
Note 2
(Segment)
R
ODS
200 k
Ω
Pull-up resistor
Note 3
between LV
DD
and V
LC0
R
LU
LV
DD
= 5.0 V, V
LC0
= 3.0 V
7.3
k
Ω
(b) 1/3 bias method (2.5 V
≤
LV
DD
≤
5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
LCD drive voltage
V
LCD
2.5
LV
DD
V
LCD divider resistor
Note 1
R
LCD
60 100 150 k
Ω
LCD output resistor
Note 2
(Common)
R
ODC
40 k
Ω
LCD output resistor
Note 2
(Segment)
R
ODS
200 k
Ω
Pull-up resistor
Note 3
between LV
DD
and V
LC0
R
LU
LV
DD
= 5.0 V, V
LC0
= 3.0 V
7.3
k
Ω
(c) 1/2 bias method (2.7 V
≤
LV
DD
≤
5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
LCD drive voltage
V
LCD
2.7
LV
DD
V
LCD divider resistor
Note 1
R
LCD
60 100 150 k
Ω
T
A
=
−
10 to +85
°
C
40
k
Ω
LCD output resistor
Note 2
(Common)
R
ODC
T
A
=
−
40 to
−
10
°
C
60
k
Ω
LCD output resistor
Note 2
(Segment)
R
ODS
200 k
Ω
Pull-up resistor
Note 3
between LV
DD
and V
LC0
R
LU
LV
DD
= 5.0 V, V
LC0
= 3.0 V
7.3
k
Ω
Notes 1.
When internal resistors are connected only.
2.
The output resistor is a resistor connected between one of the V
LC0
, V
LC1
, V
LC2
and LV
SS
pins, and either
of the SEG and COM pins.
3.
Disconnected when LCD mode is entered by setting the LCD mode setting register (LCDMD).
Remark
The figures in the above table indicate the values when a 0.47
µ
F capacitor is connected between V
LC0
to
V
LC2
and GND.