MTC-20400X
GENERAL SPECIFICATION
Item
Number of Character
Module Size
Viewing Area
Character Size
Dot Size/Dot Pitch
Backlight
Options
20x4
98.5(W)x60.0(H)x10.5/14.5(D)mm Max
76.0(W)x25.2(H)mm
2.95(W)x4.75(H)mm
0.55(W)x0.55(H)mm/0.60(W)x0.60(H)mm
Without/EL/LED
Gray STN/Yellow STN/Normal/Extended
Temperature/Bottom/Top Viewing
INTERFACE PIN ASSIGNMENT
Content
Pin No. Pin Out
1
V
SS
Ground
Function Description
2
V
DD
Logic Circuit Power Supply
3
V
O
Power Supply for LCD Panel
ELECTRICAL CHARACTERISTICS
4
RS
Data/Instruction Register Select
Item
Power
Supply
for Logic
Input
Voltage
Symbol
V
DD
- V
SS
V
IL
V
IH
Condition
-
L level
H level
T a = 0
擄C
Min.
2.7
V
SS
0 . 8 V
DD
4.3
4.4
4.2
-
-
Typ.
4.5
0 . 2 V
DD
V
DD
4.5
4.6
4.4
1.5
175
Max.
5.5
-
-
4.7
Unit Note
Volt
Volt
-
Volt
6
E
Enable Signal
-
5
R/W
Read/Write Select
LCM
Recommend
LCD Module
Driving
Voltage
Power
Supply
Current for
LCM
7~14
V
DD
= 5 V
T a = 2 5
擄C
T a = 5 0
擄C
I
DD
( B / L O F F )
I
LED
V
DD
= 5 V
V
DD
- V
O
= 4 . 6 V
T a = 2 5
擄C
4.8
4.6
2.0
mA
280
-
16
Volt
-
15
DB0~DB7
3-State I/O Data Bus
BKL1
Power Supply for Backlight. 100V/400Hz AC for EL,
4.2V or 120~180mA DC for LED backlight. Don't
care if no backlight
BKL2
BLOCK DIAGRAM
POWER SUPPLY
MECHANICAL
1
