Rainbow Electronics BG12864A User Manual

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BG12864A

Feature

1. COB with metal frame

2. Built-in controller KS107/108

3. +5V single power supply, with built-in negative voltage

4. 1/64 duty cycle

5. Option: Temperature compensation circuit

6. LED B/L Pins: 19/20, or A/K , or 1/2

7. Option: LED array/edge B/L, EL B/L

8. Option: +3V single power supply

9. Option: negative voltage (built-in, external)

Mechanical Data
Item

Module Dimension

Viewing Area
Dot Size

Dot Pitch

Standard Value Unit

93.0 x 70.0

72.0 x 40.0

0.48 x 0.48

0.52 x 0.52

mm
mm
mm
mm

Pin Assignment

Pin Symbol Function

1
2
3
4

5
6

7~14

15
16
17
18
19
20

Vss
Vdd
Vo
D/I
R/W

E
DB0~7
CS1
CS2
/RST
Vee

A
K

GND
+ 5V(+3V option)
Contrast adjustment

Data/instruction
Data read/write
H -> L Enable signal
Data bus line
Chip select for IC1
Chip select for IC2

Reset

Negative voltage output

Power supply for B/L (+)

Power supply for B/L (GND)

Dimension

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

9.7

9

4.2

330

Unit

V

mA

V

V

mA

V

P