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1.44 inch SPI TFT LCD ZIF Connection Product Introduction
SFTO144JY-7177AN is a full-color TFT LCD display with a diagonal size of 1.44 inches and a resolution of 128x128. This module supports SPI interface, making it very convenient for users to program and use. The module size of SFTO144JY-7177AN model is 29x34.41x2.2 mm, and the active area size is 25.5x26.5mm. Despite their small size, small TFT LCD screens are widely used in industries such as smart wearable devices, instruments, digital cameras, electronic tags, communication devices, and smart homes. This 1.44-inch small-sized TFT display SFTO144JY-7177AN adopts SPI interface (serial peripheral interface), which is a high-speed, full duplex, synchronous communication bus that only occupies four lines on the chip pins, saving space for chip pins and PCB layout.
The ST7735 controller is integrated into the module, with a logic power supply voltage range of 3.0V to 3.4V. It can operate within a temperature range of -20 ℃ to+70 ℃, and its storage temperature range is -30 ℃ to+80 ℃. The FPC of SFTO144JY-7177AN can be customized according to user requirements and can be equipped with newly designed resistive touch screen (RTP) or capacitive touch screen.
Features
| Item | Specification | Unit |
| Display Mode | Normally Black, Transmissive | / |
| Viewing Direction | 12 o'clock | / |
| Colors | 262K | / |
| Drive IC | COG ST7735S | / |
| Interface Type | SPI | / |
| Dimensional Outline | 29.00(W) x 34.41(H) x 2.25(T) | mm |
| LCD Active Area LCD | 25.50(W) x 26.50(H) | mm |
| Resolution | 128 RGB(H) x 128(V) | pixels |
| Pixel Pitch | 0.198(W) x 0.198(H) | mm |
1.44 inch SPI TFT LCD ZIF Connection Product Drawing
Interface Pin Definitions
| No | Symbol | Description |
| 1 | LEDA | Backlight anode |
| 2 | LEDK | Backlight cathode |
| 3 | SPI4W | Low 3-line SPI Enable. SPI High 4-line SPI Enable. |
| 4 | VCC | Power supply for Analog(2.8V-3.3V) |
| 5 | GND | Ground pin |
| 6 | CS | Chip select input pin |
| 7 | RESET | LCM Reset pin |
| 8 | SDA | SPI in/out signal |
| 9 | SCL | Serial interface clock |
| 10 | RS | Instruction /data select input Pin |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Logic Supply Voltage | IOVCC | -0.3 | 4.6 | V |
| Analog Supply Voltage | VCC | -0.3 | 4.6 | V |
| Operating temperature | Top | -20 | 70 | ℃ |
| Storage temperature | Tst | -30 | 80 | ℃ |
| Humidity | RH | -- | 90%(Max60C) | RH |
Electrical Characteristics
| Parameter | Symbol | Min | Typ | Max | Unit |
| Logic Supply Voltage | IOVCC | 1.65 | 1.8/2.8 | 3.3 | V |
| Analog Supply Voltage | VCC | 2.6 | 2.8 | 3.3 | -- |
| Input Current | Idd | -- | 20 | -- | mA |
Backlight Characteristics
| Item | Symbol | Min | Typ | Max | Unit | Condition |
| Forward Voltage | Vf | 3.0 | 3.2 | 3.4 | V | -- |
| Forward Current | If | -- | 20 | -- | mA | -- |
| Operating Life Time | -- | -- | 40000 | -- | Hrs |
Pin Definitions
| Pin | Symbol | Description |
| 1 | LEDA | Anode of Backlight |
| 2 | GND | Ground |
| 3 | RESET | LCM Reset pin |
|
4 |
D/C | Register select pin D/C=’ 1’ : Display data. D/C=’0’ : Command data. |
| 5 | SDA | Serial data input |
| 6 | SCL | Serial clock pin |
| 7 | VDD | Power supply for Analog(2.8V-3.3V) |
| 8 | CS | Chip select pin(“Low” enable) |
Optical Characteristics
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Note | |
| Transmittance (without Polarizer) | T(%) |
- |
14.8 |
16.5 |
- | % | ||
| Transmittance (with Polarizer) | T(%) |
- |
5.4 |
6.0 |
- | % | Measuring with EWV Polarizer, Reference Only | |
| Contrast Ratio | CR |
Θ=0 Normal viewing angle | 640 | 800 | - | - | ( 1)(2) Measuring with EWV Polarizer, Reference Only | |
| Response Time | Rising | TR | - | 4 | 8 |
msec | ( 1)(3) | |
| Falling | TF | - | 12 | 24 | ||||
| Color Gamut | S(%) | - | 53 | - | % | |||
| Color Chromaticity (CIE1931)
| White | Wx | 0.273 | 0.293 | 0.313 | ( 1)(4) CF glass C-light | ||
| Wy | 0.305 | 0.325 | 0.345 | |||||
| Red | Rx | 0.616 | 0.636 | 0.656 | ||||
| Ry | 0.308 | 0.328 | 0.348 | |||||
| Green | Gx | 0.263 | 0.283 | 0.303 | ||||
| Gy | 0.511 | 0.531 | 0.551 | |||||
| Blue | Bx | 0.115 | 0.135 | 0.155 | ||||
| By | 0.114 | 0.134 | 0.154 | |||||
| Viewing Angle
| Hor. | ΘL | CR>10 | 60 | 70 | - | Measuring with EWV Polarizer, Reference Only | |
| ΘR | 60 | 70 | - | |||||
|
Ver. | ΘU | 60 | 70 | - | ||||
| ΘD | 50 | 60 | - | |||||
| Optima View Direction | 12 o’clock | (5) | ||||||
Schematic Diagram
1.44 inch SPI TFT LCD ZIF Connection Product Image
Facilities and Certifications
Contact Us
We love to hear about your projects, If you have any questions, we can be reached at sales2@saef.com.cn