Model No. WG12864M
►Graphic LCD 128x64
►Type: Graphic
►Structure: COB
►Size: 2.93"
►IC: NT7107, NT7108
►+5V power supply
►1/64 duty cycle
►Negative Voltage Built-in
►Interface: 6800
►Touch Screen: Option
WG12864M is a monochrome 128x64 graphic LCD display module featuring a COB (Chip on Board) structure with an integrated PCB, making it convenient for system development and mounting. The module has an outline dimension of 95.5x50.2 mm and an active area of 66.52x33.24 mm (2.93-inch diagonal).
This model is built with NT7107 and NT7108 controller ICs (or compatible), supporting the 6800 8-bit parallel interface. It operates on a 5V power supply and includes a built-in negative voltage circuit on the module.
WG12864M is available with or without LED backlight and offers multiple backlight color options. Glass types include STN positive, STN negative, and FSTN LCD, allowing flexibility for various viewing and environmental needs.
As part of Winstar’s 2.93-inch 128x64 STN graphic LCD lineup, WG12864M offers developers a reliable and versatile display option for instrumentation, industrial control, and other embedded applications. The module supports operation in temperatures from -20℃ to +70℃ and storage from -30℃ to +80℃.
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 128 x 64 | － |
| Module dimension | 95.5 x 50.2 x 13.6(Max) | mm |
| View area | 72.0 x 40.0 | mm |
| Active area | 66.52 x 33.24 | mm |
| Dot size | 0.48 x 0.48 | mm |
| Dot pitch | 0.52 x 0.52 | mm |
| Duty | 1/64 | |
| Backlight Type | LED | |
| IC | NT7107,NT7108 | |
| Interface | 6800 | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Supply voltage for Logic | VDD-VSS | -0.3 | － | 7.0 | V |
| Driver Supply Voltage | VLCD | VEE-0.3 | － | VDD+0.3 | V |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 4.5 | 5.0 | 5.5 | V |
| Supply Voltage For LCD | VDD-VO | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 8.8 8.4 |
－ 9.1 － |
10.6 9.4 － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | VDD | V |
| Input Low Volt. | VIL | － | 0 | － | 0.8 | V |
| Output High Volt. | VOH | － | 2.4 | － | － | V |
| Output Low Volt. | VOL | － | － | － | 0.4 | V |
| Supply Current | IDD | VDD=5.0V | － | 2.5 | 7.5 | mA |
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | VSS | 0V | GND |
| 2 | VDD | 5.0V | Power Supply |
| 3 | VO | (Variable) | Contrast Adjustment |
| 4 | D/I | H/L | Data /Instruction |
| 5 | __ R/ W |
H/L | Data Read/Write |
| 6 | E | H | H→L Enable signal |
| 7 | DB0 | H/L | Data bus line |
| 8 | DB1 | H/L | Data bus line |
| 9 | DB2 | H/L | Data bus line |
| 10 | DB3 | H/L | Data bus line |
| 11 | DB4 | H/L | Data bus line |
| 12 | DB5 | H/L | Data bus line |
| 13 | DB6 | H/L | Data bus line |
| 14 | DB7 | H/L | Data bus line |
| 15 | CS1 | H | Chip Select for IC1 |
| 16 | CS2 | H | Chip Select for IC2 |
| 17 | /RST | L | Reset |
| 18 | Vee | － | Negative Voltage output |
| 19 | A | － | LED+ |
| 20 | K | － | LED- |
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