MTG-12864A
GENERAL SPECIFICATION
Item
Number of Character
Module Size
Viewing Area
Dot Size/Dot Pitch
Backlight
Options
Built-in Controller
128x64
93.0(W)x70.0(H)x9.7/14.5(D)mm Max
71.7(W)x39.0(H)mm
0.50(W)x0.50(H)mm/0.52(W)x0.52(H)mm
Without/EL/LED
Gray STN/Yellow STN/Normal/Extended
Temperature/Bottom/Top Viewing
KS0108
or compatible
INTERFACE PIN ASSIGNMENT
Content
Pin No. Pin Out
1
2
3
4
V
SS
V
DD
V
ADJ
D/I
GND
Function Description
Logic supply voltage
P o w e r s u p p l y f o r L C D p a n e l , t u n i n g f o r m V
DD
- V
EE
Data/Instruciton
D/I=high: Indicates that data of DB0~DB7 is display data.
Read/Write
R/W=high: Data of DB0~DB7 can be read by CPU.
R/W=low: Data of DB0~DB7 can be written into LCD driver
IC at the falling edge of E when CS1 and CS2 is high
Enable: When write (R/W=low): Data of DB0~DB7 is
latched at the fall of E. When read(R/W=high): Data
is read while E is at high level.
ELECTRICAL CHARACTERISTICS
Item
Power
Supply
for Logic
Input
Voltage
LCM
Recommend
LCD Module
Driving
Voltage
Power
Supply
Current for
LCM
Power
Supply for
LED
backlight
5
R/W
Symbol
V
DD
- V
SS
V
IL
V
IH
Condition
-
L level
H level
T a = 0
°C
Min.
4.5
V
SS
0 . 8 V
DD
8.3
8.4
7.7
-
-
-
Typ
5.0
0 . 2 V
DD
V
DD
9.0
8.7
7.92
1.5
390
0.6
Max. Unit note
5.5
-
-
9.3
9.0
8.2
1.8
585
1.0
mA
-
Volt
-
Volt
Volt
Volt
-
6
E
7~14
-
15
16
DB0~DB7 Data Bus: 3-state I/O common terminal.
CS1
CS2
Chip select for the left half of the display. Active high
Chip select for the right half of the display. Active high
Setting the RES signal to Low level can initialize the
following registers.
1. ON/OFF register 0 set (Display off)
2. Display start line register 0 set(display starts from
line 0). After releasing reset, this condition can be
changed only by software.
Power supply for LCD driving circuit.Please refer
page 11 for DC to DC connecting
V
DD
- V
ADJ
T a = 2 5
°C
T a = 5 0
°C
17
RES
I
DD
( L E D
B/L OFF)
I
EE
( L E D
B/L ON)
I
EE
V
LED
V
DD
= 5 . 0 V
V
DD
- V
ADJ
= 8 . 7 V
FLM=64Hz
V
LEDA
-V
LEDK
=4.2V
18
19
V
EE
BKL
A
BKL
K
T a = 2 5
°C
-
4.2
-
V
DC
20
Power supply for backlight. (4.2V/390~585mA DC
for LED backlight, 110V/400Hz AC for EL)
BLOCK DIAGRAM
POWER SUPPLY
MECHANICAL
ADI参考电路