Embedded Electronics LCD Modules BG12864B

BG12864B
Feature
Mechanical Data
Item
Module Dimension
Viewing Area
Dot Size
Dot Pitch
Standard Value Unit
Pin Assignment
Pin Symbol Function
1
2
3
4
5
6
7~14
GND
+ 5V(+3V option)
Contrast adjustment
Register selection signal
Data read/write
H -> L Enable signal
Vss
Vdd
Vo
RS
R/W
E
DB0~7
mm
mm
mm
mm
93.0 x 70.0
72.0 x 40.0
0.48 x 0.48
0.52 x 0.52
Dimension
BOLYMIN
1. COB with metal frame
2. Built-in controller ST7920
(128x64 dots matrix mode or 16x16 dots Big5/GB
Chinese mode , or 8x16 dots ASCII mode)
3. +5V single power supply
4. 1/32 duty cycle
5. Option: +3V single power supply
6. Option: LED array/edge B/L, EL B/L
15
16 Power supply for B/L (GND)
A
K
17
18
Reset LCD module
Positive voltage output +7.5V
/RST
Vee
Input Voltage
Supply Current
LCD Driving
Voltage
LED Forward
Voltage
LED Forward
Current
Vdd
Idd
Vo-Vss
Vf
If
Vdd = +5V
Vdd = +5V
25 C
5.0
2.3
6.0
4.2
330
V
mA
V
V
mA
Typical
Value
Electronic Characteristics
o
25oC
25oC
Item Symbol Condition Unit
EL Power
Voltage Vel Vel=110Vac/400Hz V
Data bus line
Power supply for B/L (+)
19.08 P2.54*