BG12864B Datasheet, PDF (1/1 Pages) Bolymin, Inc – COB with metal frame Built-in controller ST7920

BO LYMIN
BG12864B
Feature
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
Mechanical Data
Item
Standard Value Unit
Module Dimension 93.0 x 70.0 ^mm
Viewing Area
72.0 x 40.0 ^mm
Dot Size
0.48 x 0.48 ^mm
Dot Pitch
0.52 x 0.52 ^mm
Pin Assignment
Pin Symbol
1 Vss
2 Vdd
3 Vo
4 RS
5 R/W
6E
7~14 DB0~7
15 A
16 K
17 /RST
18 Vee
Function
GND
+ 5V(+3V option)
Contrast adjustment
Register selection signal
Data read/write
H -> L Enable signal
Data bus line
Power supply for B/L (+)
Power supply for B/L (GND)
Reset LCD module
Negative voltage output +7.5V
Electronic Characteristics
Item
Symbol Condition
Typical
Value
Unit
Input Voltage Vdd Vdd = +5V 5.0 V
Supply Current Idd Vdd = +5V 9.7 mA
LCD Driving
Voltage
Vdd-Vo
25 ^oC
6.0 V
LED Forward
Voltage
Vf
25 ^oC
4.2 _V
LED Forward
Current
If
25 ^oC 330 mA
EL Power
Voltage
Vel ^{Vel=110Vac/400Hz V}
Dimension
7.0
10.5
13.24
93.0 ± 0.5
80.0
72.0(VA)
66.52(AA)
18 18-Ø1.0 PTH
1
19.08
2.5
1.8
P2.54*17=43.18
88.0
1.5
A
K
4-Ø1.0 PTH
9.7(EL or No B/L)
13.6(LED B/L)
9.0(LED B/L)
5.1(EL or No B/L)
0.52
0.48
DOT SIZE
SCALE 10/1
4-Ø2.5 PTH
1.6
4-Ø6.5 PAD