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BO LYM I N
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4AA
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BG12232A
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. + 5V single power supply
6. LED B/L Pins:19/20, or A/K, or 1/2
7. Option: LED, EL B/L
8. Option: +3V single power supply
9. Option: external negative voltage
Mechanical Data
Item
Module Dimension
Viewing Area
Dot Size
Dot Pitch
Pin Assignment
Pin Symbol Function
1
2
3
4
5
6
7
8
9
10~17
18
19
20 Power supply for B/L (GND)
Vss
Vdd
Vo
Ao
/CS1
/CS2
CL
/RD/E
/WR,R/W
DB0~7
/RES
A/Vee
K
Standard Value Unit
84.0 x 44.0
60 x 18
0.4 x 0.45
0.44 x 0.49
GND
+5V(+3V option)
Contrast Adjustment
H --> Data L --> Instruction
L --> Chip1 enable
L --> Chip 2 enable
External clock 2KHZ
RD for 80 serial; /E for 68 serial
WR for 80 serial; R/W for 68 serial
Data bus line
L: 80 series, H: 68 series
Power supply for B/L (+)/
Negative voltage output
mm
mm
mm
mm
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
1.0
4.5
4.2
120
Unit
V
mA
V
V
mA
V
Dime
6
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