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| Supply Ability | 3,000,000 units / month | 
| Delivery Time | 1–5 weeks after order confirmation | 
| Packaging Details | Export-ready carton box | 
| Display Size | 1.09-inch Circular | 
| Resolution | 240×240 Pixels | 
| Interface | SPI 4-Wire (SCL/SDA/CS/RS) | 
| Color Depth | 262K Colors | 
| Driver IC | GC9A01 (Embedded GRAM) | 
| Viewing Angle | 85° All Directions | 
| Surface Luminance | 400 cd/m² | 
| Operating Temp. | -20°C to +70°C | 
| Storage Temp. | -30°C to +80°C | 
| Operating Voltage | Logic: 1.65-3.3V (IOVCC) | 
| Response Time | 30ms (Tr+Tf Typical) | 
| Compliance | REACH, RoHS & Halogen Free | 
| Brand Name | SAEF | 
| Model Number | SFTO109JY-7337AN | 
| Certification | ISO9001 / ISO14000 | 
| Place of Origin | ShenZhen / China | 
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Product Specification
| Payment Terms | T/T, PayPal, 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 | 
| Display Size | 1.09-inch Circular | Resolution | 240×240 Pixels | 
| Interface | SPI 4-Wire (SCL/SDA/CS/RS) | Color Depth | 262K Colors | 
| Driver IC | GC9A01 (Embedded GRAM) | Viewing Angle | 85° All Directions | 
| Surface Luminance | 400 cd/m² | Operating Temp. | -20°C to +70°C | 
| Storage Temp. | -30°C to +80°C | Operating Voltage | Logic: 1.65-3.3V (IOVCC) | 
| Response Time | 30ms (Tr+Tf Typical) | Compliance | REACH, RoHS & Halogen Free | 
| Brand Name | SAEF | Model Number | SFTO109JY-7337AN | 
| Certification | ISO9001 / ISO14000 | Place of Origin | ShenZhen / China | 
Ultra-Compact Round TFT for Wearables & IoT Devices
 The SFTO109JY-7337AN is a 1.09-inch circular TFT LCD module engineered for space-constrained applications like smartwatches, medical sensors, and industrial IoT interfaces. With 240×240 resolution and 262K colors driven by the GC9A01 controller, it delivers crisp graphics while consuming ultra-low power (μA-range sleep mode).
 Key Technical Advantages
Simplified integration with ARM Cortex-M, ESP32, and Raspberry Pi Pico MCUs – leverages embedded GRAM to reduce host processor load.
Critical Specifications for Embedded Design
Compliance & Quality Assurance
For Design Engineers: Download SPI timing diagrams, Arduino initialization code, and optical test reports in the full datasheet. Compatible with STM32 HAL libraries.
Mechanical Outline Dimensions

General Specification
| Items | Specification | Unit | 
| Drive element | a-Si TFT | - | 
| LCM outline size | 30.59 (H) x 32.98 (V) | mm | 
| Active area | 27.79 (H) x 27.79 (V) | mm | 
| Number of pixels | 240(H)X240(V) | pixels | 
| Pixel arrangement | RGB Vertical stripe | - | 
| Pixel Pitch | 0.1158x 0.1158 | mm | 
| Display color | 262k | color | 
| Viewing direction | ALL | - | 
| Controller / Driver | GC9A01 | - | 
| Data interface | SPI 4W | - | 
| Backlight | 2 White LED | - | 
| Weight | TBD | g | 
Absolute Maximum Ratings
| Characteristics | Symbol | Min. | Typ | Max. | Uni t | 
| Supply Voltage | IOVCC | -0.3 | - | 4.6 | V | 
| VCI | -0.3 | - | 4.6 | V | |
| TFT Gate On voltage | VGH | -0.3 | - | 27 | V | 
| TFT Gate Off voltage | VGL | -0.3 | - | 27 | V | 
| Backlight Forward Current | IF | - | 40 | mA | |
| Operating Temperature | TOPR | -20 | +70 | °C | |
| Storage Temperature | TSTG | -30 | +80 | °C | |
| Humidity | RH | - | 90 | % | 
DC Characteristics
| Characteristics | Sym bol | Min. | Typ. | Max. | Unit | Note | 
| Power Supply Voltage 1 | IOVC C | 1.65 | 1.8 | 3.3 | V | |
| Power Supply Voltage 2 | VCI | 2.5 | 2.8 | 3.3 | V | |
| Gate Driver High Voltage | VGH | 12 | - | 13 | V | |
| Gate Driver Low Voltage | VGL | -11 | - | -18 | V | |
| 
 Current Consumption | IDD | - | TBD | - | mA | Normal mode | 
| IDD-SL EEP | TBD | uA | Sleep mode | |||
| Input voltage “L” Level | VIL | GND | - | 0.3IOVCC | V | IOVCC= 1.65~ 3.3 | 
| Input voltage “H” Level | VIH | 0.7IOVCC | - | IOVCC | V | |
| Output voltage “L” Level | VoL | GND | - | 0.2IOVCC | V | IOL= 1mA | 
| Output voltage “H” Level | VoH | 0.8IOVCC | - | IOVCC | V | IOH=-1mA | 
Backlight Unit Characteristics
| Characteristics | Symbol | Condition | Min. | Type | Max. | Unit | 
| Forward Voltage | Vf | IL=40mA | - | 2.8 | 3.0 | V | 
| Forward current | IL | - | 40 | - | mA | |
| Luminance | Lv | IL=40mA | - | 450 | -- | cd/m2 | 
| LED life time | - | IL=40mA | 20,000 | 25,000 | -- | Hr | 
Product Image


Company Details
Business Type:
Manufacturer 
Year Established:
2007 
Total Annual:
40000000-50000000
Employee Number:
400~500 
Ecer Certification:
Verified Supplier 
Founded in 2007, ShenZhen SAEF Technology Co., Ltd is committed to manufacturing and developing high-quality products for industrial LCD display, including TFT LCD, OLED, monochrome TN/STN/FSTN LCM display modules and system integration solutions. Saef Technology has become a leading enterprise in t... Founded in 2007, ShenZhen SAEF Technology Co., Ltd is committed to manufacturing and developing high-quality products for industrial LCD display, including TFT LCD, OLED, monochrome TN/STN/FSTN LCM display modules and system integration solutions. Saef Technology has become a leading enterprise in t...
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