| Categories | E-ink Epaper Display |
|---|---|
| Brand Name: | SAEF |
| Model Number: | SFE154QXBW-7284AN |
| Certification: | ISO9001 / ISO14000 |
| Place of Origin: | ShenZhen / China |
| MOQ: | 3 units (Negotiable for sample orders) |
| Price: | USD$1.00 – $3.00 / unit (FOB Shenzhen, based on order quantity) |
| Payment Terms: | T/T 50% deposit,50% before shipment |
| Supply Ability: | 3,000,000 units / month |
| Delivery Time: | 1–5 weeks after order confirmation |
| Packaging Details: | Export-ready carton box |
| Technology: | Electrophoretic E-ink (Bi-stable) |
| Screen Size: | 1.54 inch (39.1 mm diagonal) |
| Resolution: | 200 (H) × 200 (V) pixels | 188 DPI |
| Active Area: | 27.0 × 27.0 mm |
| Color: | Monochrome (Black/White) |
| Power Supply: | Active: 4.5 mW (Typ.) |
| Viewing Angle: | 180° (Ultra-wide) |
| Interface: | Dual-Mode SPI |
| Refresh Time: | Full Update: 1.8 sec; Partial Update: 0.3 sec |
| Optical: | Reflectivity: 35% (Typ., white state) |
| Operating Temp: | 0°C to +50°C |
| Storage Temp.: | -25°C to +70°C |
| Compliance: | REACH & RoHS Compliant & Halogen Free |
| Special Features:: | VCOM OTP programming, Waveform LUT optimization |
The SFE154QXBW-7284AN is a 1.54" monochrome E-ink display engineered for ultra-low-power applications in IoT devices, industrial sensors, and portable medical instruments. Leveraging electrophoretic technology with bi-stable performance (zero power to retain images), it delivers 35% reflectivity and 180° viewing angles – ideal for sunlight-readable deployments in harsh environments (0°C to +50°C).
1. Dual SPI Flexibility & Advanced Control
Configurable 3-wire (9-bit) or 4-wire (8-bit) SPI via BS1 pin (Page 7), compatible with ARM Cortex-M/R, ESP32, and Raspberry Pi Pico.
Integrated waveform LUT optimization (Command 0x32) and VCOM OTP programming (Command 0x2A) for flicker-free updates and temperature compensation.
2. Ultra-Low Power Architecture
Deep Sleep Mode at 1–5 µA (Command 0x10) extends battery life in always-on applications.
Partial refresh (0.3 sec) minimizes energy consumption during dynamic data updates.
3. Robust Environmental Tolerance
Validated for 240 hrs at -25°C/+60°C storage, 80% RH humidity, and ±8kV ESD.
Anti-glare hardened surface resists scratching in high-traffic industrial settings.
Pre-tested initialization sequence reduces development time:
Compliance for EU/US Markets
◾ RoHS 3 (EU 2015/863), REACH SVHC, and Halogen-Free certified.
◾ Packaging meets EU 2025/40 recyclability standards (effective
2026).
Target Applications
Industrial: HVAC controls, warehouse logistics tags
Medical: Portable diagnostic devices, medication trackers
Retail: Electronic shelf labels (ESLs), smart price tags
Smart City: Parking sensors, environmental monitors
Mechanical Dimensions
Absolute maximum rating
| Parameter | Symbol | Rating | Unit |
| Logic supply voltage | VCI | -0.5 to +6.0 | V |
| Logic Input voltage | VIN | -0.5 to VCI +0.5 | V |
| Logic Output voltage | VOUT | -0.5 to VCI +0.5 | V |
| Operating Temp range | TOPR | 0 to +50 | ºC |
| Storage Temp range | TSTG | -25 to+70 | ºC |
| Optimal Storage Temp | TSTGo | 23±2 | ºC |
| Opt ma Storage Hum ty | HSTGo | 55± | RH |
Panel DC Characteristics
| Parameter | Symbol | Conditions | Applica ble pin | Min. | Typ. | Max | Units |
| Single ground | VSS | - | - | 0 | - | V | |
| Logic supply voltage | VCI | - | VCI | 2.2 | 3.0 | 3.7 | V |
| Core logic voltage | VDD | VDD | 1.7 | 1.8 | 1.9 | V | |
| High level input voltage | VIH | - | - | 0.8 VCI | - | - | V |
| Low level input voltage | VIL | - | - | - | - | 0.2 VCI | V |
| High level output voltage | VOH | IOH = -100uA | - | 0.9 VCI | - | - | V |
| Low level output voltage | VOL | IOL = 100uA | - | - | - | 0.1 VCI | V |
| Typical power | PTYP | VCI =3.0V | - | - | 4.5 | - | mW |
| Deep sleep mode | PSTPY | VCI =3.0V | - | - | 0.003 | - | mW |
| Typical operating current | Iopr_VCI | VCI =3.0V | - | - | 1.5 | - | mA |
| Image update time | - | 25 ºC | - | - | 1.8 | - | sec |
Sleep mode current | Islp_VCI | DC/DC off No clock No input load Ram data retain | - | - | 20 | uA | |
Deep sleep mode current | Idslp_VCI | DC/DC off No clock No input load Ram data not retain | - | - | 1 | 5 | uA |
Remarks: Image update time (full): 1.8 sec, Image update time (Partial): 0.3 sec.
Optical Specifications
| Symbol | Parameter | Conditions | Min | Typ. | Max | Units |
| R | White Reflectivity | White | 30 | 35 | - | % |
| CR | Contrast Ratio | Indoor | 8:1 | - | ||
| GN | 2Grey Level | - | DS+(WS-DS)*n(m-1) | |||
| T update | Image update time | at 25 °C | 1.8 | - | sec | |
| Life | Topr | 1000000times or 5years |
Interface Pin Definition
| No. | Name | I/O | Description |
| 1 | NC | Do not connect with other NC pins | |
| 2 | GDR | O | N-Channel MOSFET Gate Drive Control |
| 3 | RESE | I | Current Sense Input for the Control Loop |
| 4 | NC | Do not connect with other NC pins | |
| 5 | VSH2 | C | Positive Source driving voltage |
6 | TSCL | O | This pin is I2C Interface to digital temperature sensor Clock pin. External pull up resistor is required when connecting to I2C slave. When not in use: Open |
7 | TSDA | I/O | This pin is I2C Interface to digital temperature sensor Data pin. External pull up resistor is required when connecting to I2C slave. When not in use: Open |
| 8 | BS1 | I | Bus Interface selection pin |
| 9 | BUSY | O | Busy state output pin |
| 10 | RES# | I | Reset signal input. Active Low. |
| 11 | D/C# | I | Data /Command control pin |
| 12 | CS# | I | Chip select input pin |
| 13 | SCL | I | Serial Clock pin (SPI) |
| 14 | SDA | I | Serial Data pin (SPI) |
| 15 | VDDIO | P | Power Supply for interface logic pins It should be connected with VCI |
| 16 | VCI | P | Power Supply for the chip |
| 17 | VSS | P | Ground |
| 18 | VDD | C | Core logic power pin VDD can be regulated internally from VCI. A capacitor should be connected between VDD and VSS |
| 19 | VPP | P | Power Supply for OTP Programming. |
| 20 | VSH1 | C | Positive Source driving voltage |
| 21 | VGH | C | Positive Gate driving voltage. |
| 22 | VSL | C | Negative Source driving voltage |
| 23 | VGL | C | Negative Gate driving voltage. |
| 24 | VCOM | C | VCOM driving voltage |
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