20x2 Character LCD FSTN Transflective - MCU
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20x2 Character LCD FSTN Transflective - MCU
- 💹 Enjoy a 20% discount for orders over 500
- 📉 A 15% discount is available for orders ranging from 200 to 499
- 🎁 A 10% discount is available for orders ranging from 50 to 199
- 🎁 A 5% discount is available when ordering 10-49
Resources & Downloads
20×2 Character LCD FSTN Transflective Module with ST7066U Controller
DM-LCD2002-433 is a 20-character by 2-line character LCD module using FSTN positive, transflective display technology. It is suitable for embedded equipment interfaces that need a standard character display, 5.0 V logic supply, white LED backlight, and a 6800 Series MPU parallel interface.
The module integrates an ST7066U controller IC, uses a 16-pin parallel interface layout, and has a 116.0 × 37.0 × 13.9 mm maximum module outline.
Mechanical drawing reference for layout review
Verified Technical Specifications
The specifications below summarize the verified parameters for SKU DM-LCD2002-433. For detailed electrical limits, timing characteristics, mechanical dimensions, and handling information, refer to the official datasheet.
| Parameter | Specification |
|---|---|
| Product Model | DM-LCD2002-433 |
| Product Type | Character LCD module |
| Display Format | 20 characters × 2 lines |
| Display Mode | FSTN positive, transflective |
| Controller IC | ST7066U |
| Interface | 6800 Series MPU parallel interface |
| Duty | 1/16 |
| View Direction | 6:00 |
| Module Dimension | 116.0 × 37.0 × 13.9 mm maximum |
| Viewing Area | 85.0 × 18.6 mm |
| Active Area | 73.5 × 11.5 mm |
| Backlight | White LED |
| Logic Supply Voltage | 4.5 V min., 5.0 V typ., 5.5 V max. |
| Logic Supply Current | 1.0 mA min., 1.2 mA typ., 1.5 mA max. at VDD = 5.0 V |
| Backlight Supply Voltage | 3.4 V min., 3.5 V typ., 3.6 V max. |
| Backlight Supply Current | 32 mA typ., 40 mA max. |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Weight | 56.0 g |
| Touch Function | No touch panel or touch controller IC is specified in the supplied product information. |
Optical, Electrical, and Mechanical Data
These optical, electrical, and mechanical values help define display performance, power requirements, and enclosure fit for integration work.
Transflective FSTN Positive Display
The datasheet specifies FSTN positive, transflective display mode with 6:00 viewing direction for this 20×2 character LCD module.
Module Outline and Viewing Area
The mechanical drawing lists a 116.0 × 37.0 mm outline, 13.9 mm maximum thickness, 85.0 × 18.6 mm viewing area, and 73.5 × 11.5 mm active area.
Logic and Backlight Current Are Separate
Logic supply current is specified as 1.2 mA typical at 5.0 V. The white LED backlight is specified separately at 32 mA typical and 40 mA maximum.
Left and right viewing angles are specified as 45° each.
The contrast ratio is specified as 5:1 for DM-LCD2002-433.
Response time is listed as Tr + Tf at 25°C.
This value is listed in the datasheet as luminance measured without LCD.
6800 Series MPU Interface and Pin Assignment
The module uses a 16-pin parallel interface layout. The pin assignment includes logic power, contrast input, control signals, data bus lines, and LED backlight power pins.
Parallel Character LCD Control
The ST7066U controller uses register select, read/write, enable, and DB0 to DB7 data bus lines. The controller documentation describes 4-bit and 8-bit microprocessor interface configurations.
A mating connector model is not specified in the supplied DM-LCD2002-433 datasheet. Contact DisplayModule if your project requires a specific header, soldering method, or assembly option.
Operating and Reliability Conditions
The reliability conditions below are listed in the official datasheet and provide a reference for environmental and handling requirements. Product-level validation should be completed in the final application environment.
Temperature Storage
High-temperature storage is specified at 80°C for 200 hours. Low-temperature storage is specified at -30°C for 200 hours.
Temperature Operation
High-temperature operation is specified at 70°C for 200 hours. Low-temperature operation is specified at -20°C for 200 hours.
Humidity and Thermal Shock
High-temperature and humidity operation is specified at 60°C, 90% RH for 96 hours. Thermal shock is specified at -20°C / 70°C for 10 cycles.
Vibration and ESD
Vibration test conditions include 10-55 Hz in X, Y, and Z directions. Static electricity test condition is VS = 800 V, RS = 1.5 kΩ, CS = 100 pF, 1 time.
Integration Notes
Use the notes below to align electrical, mechanical, firmware, and purchasing requirements for this SKU.
Design Confirmation
Confirm SKU DM-LCD2002-433, backlight drive requirements, 4-bit or 8-bit bus mode, pin-header assembly, viewing direction, contrast adjustment circuit, and enclosure window.
Power Review
LCD logic current and LED backlight current are specified separately. The 1.2 mA typical value refers to logic supply current, not total module current.
Firmware Review
The datasheet provides ST7066U instruction descriptions, initialization guidance, built-in font table, and timing characteristics for read and write operations.
Mechanical Review
Use the module outline, viewing area, active area, mounting-hole positions, and maximum thickness when preparing the enclosure and front-panel layout.
Availability Review
The product page lists sample availability and a factory bulk lead time of 3 weeks. Contact DisplayModule for current stock and project lead time.
Product Questions
What interface does this 20×2 character LCD use?
It uses a 6800 Series MPU parallel interface with a 16-pin layout. The pin list includes RS, R/W, E, DB0-DB7, VSS, VDD, VO, and LED backlight A/K pins.
Does the module support both 4-bit and 8-bit bus modes?
The ST7066U documentation supports 4-bit or 8-bit microprocessor interface configurations. Use the ST7066U documentation when preparing the firmware initialization sequence.
Is a touch panel included?
No touch panel or touch controller IC is specified in the supplied product information. Contact DisplayModule if your project requires a touch function.
What should be confirmed for a project build?
Confirm SKU DM-LCD2002-433, 5.0 V logic supply, LED backlight drive, VO contrast adjustment, 16-pin interface connection, mechanical outline, sample availability, and current lead time.
Download Engineering Files
Download the primary DM-LCD2002-433 datasheet and ST7066U controller reference for detailed dimensions, pin assignment, electrical characteristics, timing information, and integration requirements. The DM-LCD2002-432 and DM-LCD2002-434 datasheets are included only as related variant references.