NDTC4004001 | 4004 LCD Arduino 40x4 Character LCD Display Module STN LCD Yellow Green
The 40×4 LCD display (also known as the 4004 LCD) is a high-capacity character module designed to handle 4 lines with 40 characters each, offering a total of 160 character positions. This makes it an ideal solution for applications that require large amounts of text data on a single screen, such as industrial control panels, laboratory instruments, and data monitoring systems.
Built with STN-LCD Yellow Green technology and a transflective display mode, this 40 x4 LCD ensures sharp visibility in both bright and dim environments. With its wide 146.5 × 29.8 mm viewing area and outline size of 190.0 × 54.0 × 13.2 mm, the display combines expansive readability with durable construction.
Supporting both 3.3V and 5V operation, the 4004 LCD is flexible and developer-friendly. It connects through the standard 6800 4/8-bit parallel interface with an 18-pin connection, and is fully compatible with Arduino and similar development boards.
For engineers, makers, and industrial users, this 40×4 LCD Arduino module provides reliable performance, expanded display capacity, and long-term durability — making it a professional choice for advanced text display needs.
General Specifications
| Display Format: | 40×4 Characters |
| Display Type: | STN-LCD Yellow Green |
| Display Mode: | Transflective |
| Controller IC: | SPLC780 (or AIP31066, HD44780, KS0066, ST7066) |
| Viewing Angle: | 6:00 |
| Outline Dimension: | 190.00(W)x54.0(H)x13.2(T)mm |
| Viewing Area: | 146.50×29.80mm |
| Supply Voltage: | 3.3V, 5V |
| Backlight: | Yellow Green Color |
| Interface: | 6800 4/8-bit parallel |
| Connection Type: | 18 Pin |
| Compatibility: | Arduino and similar development boards |
| Operating Temperature: | -20°C ~ 70°C |
| Storage Temperature: | -30°C ~ 80°C |
Pin Defenition
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | DB7 | Data Bit 7 |
| 2 | DB6 | Data Bit 6 |
| 3 | DB5 | Data Bit 5 |
| 4 | DB4 | Data Bit 4 |
| 5 | DB3 | Data Bit 3 |
| 6 | DB2 | Data Bit 2 |
| 7 | DB1 | Data Bit 1 |
| 8 | DB0 | Data Bit 0 |
| 9 | E1 | Enable Signal for First KS0076 |
| 10 | R/W | H: Read Mode l: Write Mode |
| 11 | RS | H: Data Signal. L Instruction Signal |
| 12 | VEE | Input Voltage for LCD |
| 13 | VSS | Ground |
| 14 | VCC | Supply Voltage for Logic |
| 15 | E2 | Enable Signal for Second KS0076 |
| 16 | NC | No Connection |
| 17 | LED_A | Backlight Anode |
| 18 | LED_K | Backlight Cathode |
Display Drawing
Custom 40x4 Characters Display Solutions
We deliver tailored custom display solutions with flexible sizes, interfaces, and designs, including 40x4 character display options, to perfectly match your product’s application needs.
Cable Customization
Adjust the length, position, and pinout of your cables to perfectly fit the 40×4 character STN-LCD display. Add extra connectors or tailor your setup to ensure secure and efficient connections with your project.
Connector Custom
Easily modify connectors for your 40×4 character STN-LCD display. Whether it’s pin headers, boxed headers, or right-angle connectors, our engineers will ensure compatibility and secure soldering to meet your specific requirements.
Interface Custom
Choose from a wide range of interface options for your 40×4 character LCD display, including HDMI, USB, SPI, and more. Our experts are ready to help you select the best interface to achieve your design goals and ensure seamless integration.
Tailored PCB Design
Select from a variety of customization options, including shape, size, pinout, and component layout to make your PCB a perfect fit for your 40×4 character STN-LCD display. We’ll ensure your design works seamlessly with your hardware.
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