ETC MTC-20400X

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