Wide Temperature 8.4" LVDS TFT LCD Display with PCAP
Model No. WF0840ATWAMLNB0
►Size : 8.4”
►Resolution : 1024 x 768 dots
►View Direction : 80/80/80/80 (IPS)
►Interface : LVDS
►Driver IC : ST5821AH+ST5084AA
►Control-Board : No
►Brightness (cd/m²): 400
►Frame Through Hole : No
►Touch Screen : Projected capacitive touch screen (PCAP)
►Detect Point : 2 Fingers
►Operating Temperature : -30~+80 °C (Wide Temperature)
Description
WF0840ATWAMLNB0 is a 1024x768 IPS TFT LCD with a Projected Capacitive Touchscreen (PCAP) and diagonal 8.4-inch screen. It has module dimensions of 199.5 x 149.0 mm, an AA of 170.8032 x 128.1024 mm, and an aspect ratio of 4:3. This TFT module is built-in with ST5821AH and ST5084AA driver ICs, supporting LVDS interfaces. The LVDS interface is becoming increasingly popular for TFT displays because it is the perfect connecter for the TFT LCD modules requiring high-speed data transmission with low power consumption.
This 8.4-inch TFT model features an IPS panel to present the wider viewing angles of Left: 80/ Right: 80/ Up: 80/ Down: 80 degrees (typical value). It also boasts a contrast ratio of 1000:1 (typical value) and a 400 nits (typical value) brightness. The supply voltage for Logic (VDD) of WF0840ATWAMLNB0 is from 3.0V to 3.6V, with a typical value of 3.3V. It can operate at a wide temperature range from–30℃ to +80℃ and storage temperatures from -30℃ to +80℃. WF0840ATWAMLNB0 is suitable for home appliances, medical equipment, industrial control devices, etc.
DRAWING
SPECIFICATIONS
Interface
LCM PIN Definition
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | VDD | Power supply |
| 2 | VDD | Power supply |
| 3 | GND | Ground |
| 4 | GND | Ground |
| 5 | Link0- | 0- LVDS differential data input (D0N) |
| 6 | Link0+ | 0+ LVDS differential data input (D0P) |
| 7 | GND | Ground |
| 8 | Link1- | 1- LVDS differential data input (D1N) |
| 9 | Link1+ | 1+ LVDS differential data input (D1P) |
| 10 | GND | Ground |
| 11 | Link2- | 2- LVDS differential data input (D2N) |
| 12 | Link2+ | 2+ LVDS differential data input (D2P) |
| 13 | GND | Ground |
| 14 | CLKIN- | - LVDS differential clock input (CLKN) |
| 15 | CLKIN+ | + LVDS differential clock input (CLKP) |
| 16 | GND | Ground |
| 17 | Link3- | 3- LVDS differential data input (D3N) |
| 18 | Link3+ | 3+ LVDS differential data input (D3P) |
| 19 | MODE | Bit 6/8:Low(6 Bit);High(8 Bit) |
| 20 | SC | Scan direction selector (Low: Normal ;High: Reverse) |
CN2
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | NC | No connection |
| 2 | NC | No connection |
| 3 | LED C1 | LED_ Cathode 1 |
| 4 | LED A1 | LED_ Anode 1 |
| 5 | LED A2 | LED_ Anode 2 |
| 6 | LED C2 | LED_ Cathode 2 |
PCAP PIN Definition
| Pin | Symbol | Function |
|---|---|---|
| 1 | USB_VSS | System ground |
| 2 | USB_VDD 5V | Power supply |
| 3 | USB_D+ | Data + |
| 4 | USB_D- | Data - |
| 5 | VSS | System ground |
| 6 | SDA | I2C data input and output (Must be pulled high.) |
| 7 | SCL | I2C clock input (Must be pulled high.) |
| 8 | RST | External Reset, Low is active |
| 9 | INT | External interrupt to the host |
| 10 | VDDT 3.3 | Power supply |
General Specifications
| Item | Dimension | Unit |
|---|---|---|
| Screen Diagonal | 8.4 | inch |
| Number of Pixels | 1024 × 3(BGR) × 768 | dots |
| Module dimension | 199.5 × 149.0 × 14.3 | mm |
| Active area | 170.8032 (H) × 128.1024(V) | mm |
| Pixel pitch | 0.1668 × 0.1668 | mm |
| Display Mode | Normally Black , Transmissive | |
| Viewing Angle | 80/80/80/80 | |
| Drive IC | ST5821AH+ST5084AA or Equivalent | |
| TFT Interface | LVDS | |
| Backlight Type | LED, Normally White | |
| Aspect Ratio | 4:3 | |
| Side screw torque | Typ:0.9 Max:1.3 (Unit,Kgf-cm) | |
| PCAP IC | EXC81W32 or equivalent | |
| PCAP Interface | USB (I2C available) | |
| PCAP FW Version | 00_T1_M03 | |
| PCAP Resolution | 16384x16384 | |
| Touch Panel | PCAP, Projected capacitive touch panel | |
| Surface | Glare | |
Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -30 | － | +80 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
Electrical Characteristics
Operating conditions
| Item | Symbol | Min | Typ | Max | Unit | |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD | 3.0 | 3.3 | 3.6 | V | |
| Power Supply For Current | VDD=3.3V | － | 330 | 495 | mA | |
| Input Voltage | H level | VIH | 0.7VDD | － | VDD | V |
| L Level | VIL | GND | － | 0.3VDD | V | |
| Supply PCAP | USB_VDD 5V | 4.4 | 5.0 | 5.5 | V | |
| I VDD 5V | — | 45 | 68 | mA | ||
| VDDT | 2.8 | 3.3 | 3.5 | V | ||
| I VDDT | — | 45 | 68 | mA | ||
