240128 LCD Custom design Winstar LCD Screen Panel WO240128B 4.82 inch COG LCD Display Module 240x128
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DESCRIPTION
WO240128B is a monochrome COG graphic LCD module made of 240x128 pixels, diagonal size 4.8 inch. This COG LCD Module WO240128B is built in with ST7586S controller IC; it supports 6800 8-bit, 8080 8-bit parallel and 3-line 9-bit /4-line 8-bit serial SPI interface. This COG WO240128B type is having the same Active Area dimension and View Area as COB WG240128B, but WO240128B is much thinner than WG240128B. If the customers require 4.8” thinner module for new design, the WO240128B is a good choice.
This WO240128B module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. The WO240128B is available for different LCD mode options; STN Negative blue with white LED backlight, and FSTN positive white with white LED backlight. Please contact with us if you need different LCD type and LED combination.
DRAWING
SPECIFICATIONS
Interface Pin Function
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | ESD GND | Electro-Static discharge |
| 2 | VG | VG is the power of SEG-drivers |
| 3 | XV0 | Negative operating voltage of COM-drivers |
| 4 | V0 | Positive operating voltage of COM-drivers |
| 5 | VM | VM is the non-select voltage level of COM-drivers |
| 6 | VDDA | Power supply |
| 7 | VSS | Ground |
| 8 | VD1 | Digital power source selection |
| 9 | VDDI | VDD1 is the power of interface I/O circuit |
| 10 | CSB | Chip select input pin CSB=“L”: This chip is selected and the MPU interface is active CSB=“H”: This chip is not selected and the MPU interface is disabled (D[7:0] are high impedance) |
| 11 12 13 |
IF3 IF2 IF1 |
These pins select interface operation mode Note: Refer to “Interface Selection” for detailed information |
| 14 | RSTB | Reset input pin. When RSTB is “L”, internal initialization procedure is executed |
| 15 | /RD(E) | Read / Write execution control pin. (This pin is only used in parallelinterface) This pin is not used in serial interfaces and should be connected to VDD1 |
| 16~23 | D7~D0 | The bi-directional data bus of the MPU interface. When CSB is “H”, they are high impedance If using serial interface: D0 is the SDA signal in 4-Line & 3-Line interface D1 is the A0 signal in 4-Line interface |
| 24 | /WR/(R/W) | Read / Write execution control pin. (This pin is only used in parallel interface) This pin is not used in serial interfaces and should be connected to VDD1 |
| 25 | A0(SCL) | The function of this pin is different in parallel and serial interface In parallel interface: A0 is register selection input A0 = "H": inputs on data bus are display data A0 = "L": inputs on data bus are command In serial interface: this pad will be used as SCL (serial-clock) input |
| 26 | ESD GND | Electro-Static discharge |
Mechanical Data
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 240 × 128 | - |
| Module dimension | 122.2 × 79.8 × 6.5 | mm |
| View area | 114.0 × 64.0 | mm |
| Active area | 107.98 × 57.58 | mm |
| Dot size | 0.43 × 0.43 | mm |
| Dot pitch | 0.45 × 0.45 | mm |
| Drive Method | 1/128Duty,1/12Bias | |
| Backlight Type | LED | |
| IC | ST7586S | |
Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | - | +70 | ℃ |
| Storage Temperature | TST | -30 | - | +80 | ℃ |
| Digital Power Supply Voltage | VDDI | -0.3 | - | 3.6 | V |
| Analog Power supply voltage | VDDA | -0.3 | - | 3.6 | V |
| LCD Power supply voltage | V0-XV0 | -0.3 | - | 19 | V |
| LCD Power supply voltage | VG | -0.3 | - | 5.5 | V |
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | - | 3.0 | 3.3 | 3.6 | V |
| Supply Voltage For LCM | VOP | Ta=-20℃ Ta=25℃ Ta=+70℃ |
- 14.8 - |
- 15.0 - |
- 15.2 - |
V V V |
| Input High Volt. | VIH | - | 0.7VDD | - | VDD | V |
| Input Low Volt. | VIL | - | Vss | - | 0.3 VDD | V |
| Output High Volt. | VOH | - | 0.8 VDD | - | VDD | V |
| Output Low Volt. | VOL | - | Vss | - | 0.2VDD | V |
| Supply Current | IDD | VDD=3.3V | - | - | 2.0 | mA |
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