Home Products COG LCD WO12864C2

Chip-on-Glass LCD Module 128x64

Model No. WO12864C2

►COG LCD 128x64
►Graphic LCD
►Built-in controller (ST7565P or equivalent)
►3.3V power supply
►1/64 duty cycle
►Interface : 6800/8080/SPI


Winstar Chip-on-Glass LCD Module 128x64 - WO12864C2


Interface Pin Function

Pin No. Symbol Description
1 IRS Selects the resistors for the V0 voltage level adjustment
2 /HPM Control power supply for LCD “H”: Normal mode, “L”: High power mode
3 P/S Selects the interface type: Serial or Parallel.
4 C86 Interface selection 6800/8080
5 VR LCD Contrast Adjustment when IRS = “L”
6~10 V0~V4 Bias voltage levels for LCD driving
11 VRS This is the internal-output VREG power supply for the LCD power supply voltage regulator.
12 CAP4+ DC/DC voltage converter.
13 CAP2- DC/DC voltage converter.
14 CAP2+ DC/DC voltage converter.
15 CAP1+ #N/A
16 CAP1- DC/DC voltage converter.
17 CAP3+ DC/DC voltage converter.
18 CAP5+ DC/DC voltage converter
19 Vout Positive Voltage output
20 VSS Ground
21 VDD Power supply for logic
22~29 D7~D0 #N/A
30 /RD(E) 8080 family: Read signal, 6800 family: Enable clock
31 /WR(RW) 8080 family: Write signal, 6800 family: Read/Write signal
32 A0 Data/ Instruction select signal
33 /RES Controller reset signal, Active Low
34 /CS1 This is the chip select signal.

Mechanical Data

Item Standard Value Unit
Module Dimension 55.2 × 39.8 mm
Viewing Area 45.2 × 27.0 mm
Dot Pitch 0.32 × 0.38 mm
Dot Size 0.28 × 0.34 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 9.60 V

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