
BO LYM I N
BG12232B
Feature
1. COB with metal frame
2. No built-in oscillation, requiring external clock
3. Built-in controller SED1520Daa
4. 1/32 duty cycle
5. +3V~ +5V single power supply
5. requiring negative voltage for LCD driving
6. Option: FFC cable
7. Option: LED edge B/L, EL B/L
Mechanical Data 
Item
Module Dimension
Viewing Area 
Dot Size
Dot Pitch
Standard Value Unit
65.8 x 27.1
60.5 x 18.5
0.4 x 0.45
0.44 x 0.49
mm 
mm 
mm 
mm
Pin Assignment
Pin Symbol Function
1 
2 
3 
4 
5 
6 
7
8~15
16
17
18
Ao 
CS2 
CS1 
CL 
RD/ E 
WR(R/W) 
Vss 
DB0 ~ 7 
Vdd 
RES 
Vo
H: Data L: Instruction 
L: Enable chip2 
L: Enable chip1 
External clock input 2Khz
RD for 80 series, E for 68 series
WR for 80 serial, R/W for 68 serial
Power supply GND 
Data bus line
Power supply(+3V~+5V)
H: 68 series, L: 80 series 
Contrast Adjustment
Dimension
6
Electronic Characteristics
Item Symbol Condition
Input Voltage 
Supply Current 
LCD Driving 
Voltage 
LED Forward 
Voltage
LED Forward 
Current
EL Power
Voltage
Vdd
Idd
Vdd-Vo
Vf
If
Vel
Vdd = +5V 
Vdd = +5V
Vel=110Vac/400Hz
o
25 C
o
25 C
o
25 C
Typical
Value
5.0
0.5
6.4
2.1
40
Unit
V
mA
V
V
mA
V
6