Home Products COG LCD WO12864B

128x64 COG LCD Modules

Model No. WO12864B

►128x64 COG LCD
►Graphic LCD
►IC: ST7565P
►3.3V power supply
►1/65 duty cycle
►WO12864B : thickness 12.1mm (Max)
►WO12864B1 : thickness 6.0mm
►Interface : 6800/8080/SPI


WO12864B is a 2.8 inch 128x64 COG monochrome Graphic LCD module. This LCD module is built in with ST7565P controller or equivalent IC.  It supports 6800 8-bit, 8080 8-bit parallel and SPI interface. This LCD module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.  This WO12864B COG display is very suitable for the applications that demand more compact package displays.

There are two versions for WO12864B series, which is different on thickness as below:
►WO12864B : thickness 12.1mm (Max)
►WO12864B1 : thickness 6.0mm


Winstar WO12864B 128x64 COG LCD Modules


Interface Pin Function

Pin No. Symbol Description
1 /CS1B This is the chip select signal.
2 /RES Controller reset signal, Active Low
3 A0 Data/ Instruction select signal
4 /WR(R/W) 8080 family: Write signal, 6800 family: Read/Write signal
5 /RD(E) 8080 family: Read signal, 6800 family: Enable clock
6~13 D0~D7 Data bus line
14 VDD Power supply for logic
15 VSS Ground
16 Vout Positive Voltage output
17 CAP3P DC/DC voltage converter.
18 CAP1N DC/DC voltage converter.
19 CAP1P DC/DC voltage converter.
20 CAP2P DC/DC voltage converter.
21 CAP2N DC/DC voltage converter.
22~26 V4~ V0 Bias voltage levels for LCD driving
27 VR LCD Contrast Adjustment when IRS = “L”
28 C86 Interface selection 6800/8080
29 P/S Selects the interface type: Serial or Parallel.
30 NC No connection

Mechanical Data

Item Standard Value Unit
Module Dimension 89.7 × 49.8 mm
Viewing Area 69.0 × 36.5 mm
Mounting Hole 82.7 × 40.2 mm
Dot Pitch 0.50 × 0.50 mm
Dot Size 0.47 × 0.47 mm

Electrical Characteristics

Item Symbol Standard value
Input Voltage VDD 3.0 V
Recommended LCD Driving
Voltage for Normal Temp.
Version module @25°C
Vo-Vss 9.50 V

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