Model No. WFN0128A2T0YADNN000
►Size: 1.28 inch
►Resolution : 240x240 dots
►View Direction : 85/85/85/85 (IPS)
►Interface : MCU/SPI+RGB
►Driver IC : GC9A01
►Control-Board : No
►Brightness (cd/m²): 500
►Frame Through Hole : No
►Touch Screen : Without Touch Panel
The WFN0128A2T0YADNN000 is a compact 1.28-inch round TFT LCD module featuring a wide-view IPS panel and 240x240 high resolution. It is ideal for end products requiring round UI design, such as smart home controllers, wearable devices, and industrial control knobs.
This module integrates the GC9A01 driver IC and supports multiple display interfaces, including 8/9/16/18-bit MCU, 3/4-wire SPI serial interface, and 16/18-bit RGB, enabling flexible integration with various host platforms. The panel brightness reaches 500 cd/m², with a contrast ratio of 700:1, operating temperature range from -20°C to +70°C, and an LED lifetime of 50,000 hours, providing excellent display performance and long-term reliability.
| Item | Dimension | Unit |
|---|---|---|
| Size | 1.28 | inch |
| Dot Matrix | 240 × RGB × 240 (TFT) | pixel |
| Module dimension | 35.6 × 37.74 × 1.48 | mm |
| Active Area | 32.4 × 32.4 | mm |
| Pixel Pitch | 0.135 × 0.135 | mm |
| LCD type | TFT, Normally Black, Transmissive | |
| Viewing Angle | 85/85/85/85 | |
| TFT Interface | 8/9/16/18bit MCU 3/4SPI+16/18BIT RGB 3/4 Serial |
|
| Backlight Type | LED, Normally White | |
| Driver IC | GC9A01 | |
| Touch Panel | Without Touch Panel | |
| Surface | Anti-Glare | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Item | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Digital Supply Voltage | VCC | 2.5 | 2.8 | 3.3 | V |
| Digital interface supple Voltage | IOVCC | 1.65 | 2.8 | 3.3 | V |
| Normal mode Current consumption | ICC | -- | 6 | 12 | mA |
| Level input voltage | VIH | 0.7*IOVCC | -- | IOVCC | V |
| VIL | GND | -- | 0.3*IOVCC | V | |
| Level output voltage | VOH | 0.8*IOVCC | -- | IOVCC | V |
| VOL | GND | -- | 0.2*IOVCC | V |
| Item | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| LED current | - | - | 40 | - | mA |
| LED voltage | VLED+ | 2.8 | 3.0 | 3.2 | V |
| LED Life Time | - | 50000 | - | - | Hr |
| Pin No | Symbol | Function | I/O |
|---|---|---|---|
| 1 | VLED+ | Anode pin of backlight | P |
| 2 | VLED* | Cathode pin of backlight | P |
| 3 | GND | Ground. | P |
| 4 | GND | Ground. | P |
| 5 | VCC | Supply voltage (2.5-3.3V). | P |
| 6 | IOVCC | Supply voltage (1.65-3.3V). | P |
| 7 | RESET | This signal will reset the device and must be applied to properly initialize the chip. |
I |
| 8 | WR(SPI-RS) | -Write enable in MCU parallel interface. Display data/command selection pin in 4-line serial interface. Second Data lane in 2 data lane serial interface. -If not used, please fix this pin at IOVCC or GND. |
I |
| 9 | CS | Chip select input pin (“Low” enable ,CSX). Fix this pin at IOVCC or GND when not in use. |
I |
| 10 | RS(SPI-SCL) | -Display data/command selection pin in parallel interface.(D/CX) -This pin is used to be serial interface clock. (SCL) DC=’1’: display data or parameter. DC=’0’: command data. -If not used, please fix this pin at IOVCC or GND. |
I |
| 11 | RD | Serves as a read signal and MCU read data at the rising edge. Fix this pin at IOVCC or GND when not in use. |
I |
| 12 | PCLK | Dot clock signal for RGB interface operation. (DOTCLK) Fix this pin at IOVCC or GND when not in use. |
I |
| 13 | DE | Data enable signal for RGB interface operation. (ENABLE) fix this pin at IOVCC or GND when not in use. |
I |
| 14 | VSYNC | Frame synchronizing signal for RGB interface operation. fix this pin at IOVCC or GND when not in use. |
I |
| 15 | HSYNC | Line synchronizing signal for RGB interface operation. fix this pin at IOVCC or GND when not in use. |
I |
| 16 | TE | Tearing effect output pin to synchronize MPU to frame writing, activated by S/W command. When this pin is not activated, this pin is low. If not used, open this pin. |
I |
| 17 | NC | No connection | O |
| 18 | SDA | The data is latched on the rising edge of the SCL signal. If not used, please fix this pin at IOVCC or GND level |
I/O |
| 19-36 | DB17-DB0 | 18-bit parallel bi-directional data bus for MCU system and RGB interface mode . 18-bit RGB DB0:BLUE LSB--DB5:BLUE MSB; DB6:GREEN LSB--DB11:GREEN,MSB; DB12:RED LSB--DB17:RED MSB. 16-bit RGB: DB1:BLUE LSB--DB5:BLUE MSB; DB6:GREEN LSB--DB11:GREEN,MSB; DB13:RED LSB--DB17:RED MSB. mode Fix to GND level when not in use |
I/O |
| 37 | IM0 | MPU Parallel interface bus and serial interface select If use RGB Interface must select serial interface. Fix this pin at IOVCC and GND. |
I |
| 38 | IM1 | ||
| 39 | IM3 |
| IM3 | IM1 | IM0 | Interface Type | DB Pin in use |
|---|---|---|---|---|
| L | L | L | 8080 MCU 8-bit bus interface | DB7-DB0 |
| L | H | L | 8080 MCU 16-bit bus interface | DB15- DB0 |
| L | L | H | 8080 MCU 9-bit bus interface | DB8- DB0 |
| L | H | H | 8080 MCU 18-bit bus interface | DB17- DB0 |
| H | L | H | 3-wire 9-bit data serial interface | SDA:In/Out |
| 2 data line serial interface | SDA:In/Out,DCX:In | |||
| H | H | H | 4-wire 8-bit data serial interface | SDA:In/Out |
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