Round LCD Screen Panel, Round LCD Display Module 128x128 with PCB
Model No. WO128128A2
►COG LCD Display
►Graphic LCD
►128×128 dots
►IC: ST75161
►+3V power supply
►1/136 duty cycle
►Interface : Default 8080, Option 6800, SPI-4 Line/SPI-3Line 9bit, I2C
Description
The WO128128A2 model is a COG round LCD display module based on the WO128128A model, featuring a PCB board on the module. This round LCD display module is integrated with the ST75161 IC and supports the default 6800 interface, with optional 8080, SPI, and I2C interfaces. The power supply voltage is 3V, with a 1/136 driving duty and 1/12 BIAS.
One notable advantage of the WO128128A2 is its PCB board with a circuit layout and screw holes, facilitating easy fixing onto customers' applications. Additionally, there are three connector pitch size options: 2.54mm (default), 1.0mm, and 0.5mm. The WO128128A2 also offers an optional VDD 5V power supply voltage.
The logic supply voltage for the WO128128A2 is in the range of 2.7V to 3.3V, with a typical value of 3V. This module can operate within temperatures ranging from -20℃ to +70℃, and its storage temperatures range from -30℃ to +80℃.
The WO128128A2 Round LCD Screen Panel is available in FSTN positive LCD type with white LED backlight. Please feel free to contact us if you require different types of LCDs or LED combinations.
DRAWING
Data source ref: WO128128A2-TFH#
SPECIFICATIONS
Interface Pin Function
Pin No. | SYMBOL | Function |
---|---|---|
1 | VDD | Power supply |
2 | NC | No Connection |
3 | VSS | Ground |
4 | CSB | Chip select input pin. |
5 | A0 | It determines whether the access is related to data or command. |
6 | ERD | Read / Write execution control pin. |
7 | RWR | Read / Write execution control pin. |
8 | RSTB | Hardware reset input pin |
9-16 | D0-D7 | 8 bit bi-directional data bus |
17 | A | Anode input for LED backlight. |
18 | K | Cathode input for LED backlight |
Mechanical Data
Item | Dimension | Unit |
---|---|---|
Number of dots | 128 x 128 | - |
Module dimension | 60.0 x 62.79 x 8.6 | mm |
View area | 42.0 x 42.0 | mm |
Active area | 44.0 x 44.0 | mm |
Dot size | 0.308 x 0.308 | mm |
Dot pitch | 0.328 x 0.328 | mm |
Duty | 1/136 Duty,1/12 Bias | |
Backlight Type | LED | |
IC | ST75161 | |
Interface | 8080 |
Absolute Maximum Ratings
Item | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Operating Temperature | TOP | -20 | - | +70 | ℃ |
Storage Temperature | TST | -30 | - | +80 | ℃ |
Power Supply Voltage | VDD | -0.3 | - | 4.0 | V |
LCD Power supply voltage | VLCD | -0.3 | - | 20 | V |
LCD Power supply voltage | V0-XV0 | -0.3 | - | 19 | V |
Input voltage | VIN | -0.3 | VDD+0.3 | V |
Electrical Characteristics
Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
---|---|---|---|---|---|---|
Supply Voltage For Logic | VDD-VSS | - | 2.7 | 3.0 | 3.3 | V |
Supply Voltage For LCD | VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
- 13.7 - |
- 14.0 - |
- 14.3 - |
V V V |
Input High Volt. | VIH | - | 0.7 VDD | - | 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 | - | 0.2 VDD | V |
Supply Current | IDD | VDD=3.0V | - | 2.0 | - | mA |
Search Keyword: lcd display 128x128, lcd 128x128, 128x128 lcd display