SFBM2004HX-A-Y 20x4 Character LCD Display Module 3V STN Yellow/Green SPLC780D Compatible Contrast Adjustment VO Pin Easy Tuning
Professional-Grade 20x4 LCD for Industrial & Embedded Systems
The SFBM2004HX-A-Y is a high-reliability 20×4 character LCD module engineered for demanding applications in automation, medical devices, and laboratory equipment. Operating at 3V with ultra-low power consumption (0.15mA typ.), it delivers exceptional performance across industrial temperature ranges (-20°C to +70°C).
Key Technical Advantages
- SPLC780D Controller Compatibility:Seamless integration with industry-standard HD44780 protocols—accelerate development with existing code libraries and reference designs.
- Superior Optical Performance:STN Yellow/Green transflective display with 6 o’clock viewing angle ensures clarity under ambient lighting. Backlight uniformity >75% (100 cd/m² typ.) eliminates hot spots.
- Engineered for Harsh Environments:
- ESD Hardened: ±8kV air/±4kV contact discharge protection
- Validated per MIL-STD-105E (Major Defect AQL 0.4)
- Humidity resistant (20-90% RH non-condensing)
Technical Specifications Deep Dive
- Timing Control: 270kHz oscillator, 450ns E-pulse width (Write Mode)
- Memory Mapping: DDRAM addresses support 4-line wraparound (Hex: Line1=00-13, Line2=40-53)
- Electrical Safety: VDD=2.8-3.5V, VLCD=VDD-12V to VDD-0.3V
- Mechanical Precision: 0.56mm dot pitch, 98×60mm footprint with 13.2mm max. thickness
Compliance & Longevity
- Full ROHS 2011/65/EU, REACH 1907/2006/EC compliance
- 1-year warranty with >120hrs validation in thermal cycling (-30°C↔80°C) and vibration tests (10-55Hz XYZ axis)
For Design Engineers
Download pinout diagrams, timing waveforms (Page 9), and DDRAM mapping tables in the full datasheet. Compatible with ARM, PIC, and AVR MCUs.
Mechanical Dimensions
Specifications
| Item | Standard Value |
| Display Type | 20characters ´ 4 lines |
| LCD Type | STN(Y-G),POSITIVE,TRANSMISSIVE |
| Driver Condition | LCD Module : 1/16Duty , 1/5Bias |
| Viewing Direction | 6 O’clock |
| Backlight Type | Yellow Green |
| Interface | 8-bit MPU interface |
| Driver IC | SPLC780D |
Absolute Maximum Ratings
| Item | Symbol | Condition | Min. | Max. | Unit |
| System Power Supply Voltage | VDD | - | -0.3 | 5.5 | V |
| LCD Driver Supply Voltage | VLCD | - | 4.0 | 5.0 | V |
| Input Voltage | VIN | - | -0.3 | 5.5 | V |
| Operating Temperature | TOP | - | -20 | 70 | °C |
| Storage Temperature | TST | - | -30 | 80 | °C |
| Storage Humidity | HD | Ta < 40 °C | 20 | 80 | %RH |
DC Electrical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Logic Supply Voltage | VDD | - | 2.8 | 3.0 | 3.5 | V |
| Input High Voltage | VIH | - | 2.2 | - | 5.0 | V |
| Input Low Voltage | VIL | - | 0 | - | 0.6 | V |
| Output High Voltage | VOH | - | 2.4 | - | 5.0 | V |
| Output Low Voltage | VOL | - | 0 | - | 0.4 | V |
Backlight Characteristics
| Item | Symbol | Conditions | Min. | Typ. | Max. | Unit |
| Forward Voltage | Vf | If=30mA | 2.9 | 3.0 | 3.1 | V |
| Reverse Current | Ir | If=5v | 5 | uA | ||
| Average Brightness | IV | If=30mA | 100 | cd/m2 | ||
| Uniformity | Δ% | IVMin / IVMax *100% | 75 | - | - | % |
| Color | Y-G | |||||
Product Image
STN Blue Mode Optional
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