Model No. WG12864C
►128x64 LCD
►Type: Graphic
►Structure: COB
►Size: 2.68"
►IC: NT7107, NT7108
►+5V power supply
►1/64 duty cycle
►Built-in negative voltage
►Interface: 6800
►Touch Screen: Option
WG12864C is a monochrome graphic LCD display module with a 128x64 dot matrix and a diagonal size of 2.68 inches, featuring a COB (Chip on Board) structure. The WG12864C model is built-in with NT7107, NT7108 controller, or equivalent IC and supports the 6800 8-bit parallel interface. The logic supply voltage is 5V, with an internal built-in negative voltage 3.3V power supply optional.
This graphic display 128x64 module is available without backlight or with various LED backlight options, including yellow/green, blue, white, red, and RGB full-color. An optional touch panel can be added to meet user-interactive application needs.
The WG12864C module operates within a temperature range of -20°C to +70°C and can be stored between -30°C and +80°C.
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 128 x 64 | － |
| Module dimension | 78.0 x 70.0 x 14.3(Max) | mm |
| View area | 62.0 x 44.0 | mm |
| Active area | 56.28 x 38.36 | mm |
| Dot size | 0.40 x 0.56 | mm |
| Dot pitch | 0.44 x 0.60 | 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-V0 | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 8.2 8.2 |
－ 8.5 － |
9.6 8.8 － |
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 | 2.0 | 4.0 | 8.0 | mA |
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | /CS1 | L | Select Segment 1 ~ Segment 64 |
| 2 | /CS2 | L | Select Segment 65 ~ Segment128 |
| 3 | Vss | 0V | Ground |
| 4 | VDD | 5.0V | Supply voltage for logic |
| 5 | VO | (Variable) | Operating voltage for LCD |
| 6 | D/I | H/L | H: Data , L: Instruction |
| 7 | R/W | H/L | H: Read(MPU←Module) , L :Write(MPU→Module) |
| 8 | E | H | Enable signal |
| 9 | DB0 | H/L | Data bus line |
| 10 | DB1 | H/L | Data bus line |
| 11 | DB2 | H/L | Data bus line |
| 12 | DB3 | H/L | Data bus line |
| 13 | DB4 | H/L | Data bus line |
| 14 | DB5 | H/L | Data bus line |
| 15 | DB6 | H/L | Data bus line |
| 16 | DB7 | H/L | Data bus line |
| 17 | RST | L | Reset the LCM |
| 18 | VEE | — | Negative Voltage Output |
| 19 | A | — | Power supply for B/L (+) |
| 20 | K | — | Power supply for B/L (-) |
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