BO9864B2 is 98X64 GRAPHIC COG (chip on glass) LCD Module with built-in ST7578i controller.

BO9864B2 98X64 COG LCM Includes on chip LCD booster.

COG (chip on glass) is an LCD packaging technology where the controller is mounted directly onto the LCD glass and PCB is not required. COG makes LCD compact, consume less power and also bring down the cost.

It is recommend for compact applications 

Module dimension of BO9864B2 is (36.2 x 64.1) mm and viewing area is (31.0 x 22.5) mm.

Item	Dimension	Unit
Module dimension	36.2 x 64.1	mm
View Area	31.0 x 22.5	mm
Dot size	0.26 x 0.31	mm
Dot Pitch	0.28 x 0.33	mm

電氣特性  (Ta=25±2°C)

Item	Symbol	Condition	Min	Typ	Max	Unit
Logic Circuit Supply Voltage	VDD-VSS	-	2.8	3.0	3.3	V
Logic Supply Current	IDD	VDD = 3.0V	-	2.0	-	mA
LCM Surface Luminance (Ta=25°C)	ILED=40mA Display all OFF	25°C	67	100	-	cd/m2

Pin	Symbol	Function
1	NC	No connection
2	VSS	Power Supply (0V, GND)
3	VSS	Power Supply (0V, GND)
4	SCLK	Serial clock signal input (SCLK)
5	SDA	Serial input data(SDA_IN)
6	/RES	This signal is used to rest the device. This signal is active Low.
7	VDD	Positive power supply
8	VDD	Positive power supply