1.8-inch ST7735 TFT Display 128x160 SPI - RFA180G-ALW-DNN - Raystar
1.8-inch ST7735 TFT Display 128x160 SPI - RFA180G-ALW-DNN - Raystar

1.8-inch ST7735 TFT LCD Display SPI 128x160 Module

Model No. RFA180G-ALW-DNN

The RFA180G-ALW-DNN is a 1.8-inch 128×160 SPI TFT LCD module with the ST7735 IC, making it a reliable choice for projects requiring a compact ST7735 TFT solution. Featuring a 28.03 × 35.04 mm active area, the display ensures consistent clarity, wide viewing stability, and excellent readability. Its compact size makes it ideal for wearable devices, small instruments, and other space-constrained applications that benefit from a high-quality ST7735 TFT display.

Driven by the ST7735S IC, this ST7735 LCD module offers vivid color reproduction, low power consumption, and stable operation, making it an excellent fit for small embedded designs that require a dependable ST7735 TFT LCD. The module supports SPI interfaces and operates reliably from −20°C to +70°C. It also features a long-life white LED backlight (50,000 hours) and a typical 3.2 V LED voltage, ensuring dependable illumination for continuous-use systems. This compact format also aligns well with 1.8-inch color TFT display requirements across various applications.

If you need technical support or product quotes for the RFA180G-ALW-DNN or other 1.8-inch 128×160 SPI TFT LCD Modules with ST7735 IC, please feel free to contact our sales team!

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
TFT Series Standard TFT
Size (Diagonal) 1.8 inch
Dot Matrix / Resolution 128 × RGB × 160 (TFT) dots
Module Dimension 34.0 (W) × 45.83 (H) × 2.65 (D) mm
Active Area 28.03 × 35.04 mm
Dot / Pixel Pitch 0.073 × 0.219 mm
LCD Type TFT, Normally White, Transmissive
View Direction 6 o’clock
Gray Scale Inversion Direction 12 o’clock
Aspect Ratio Portrait
Backlight Type LED, Normally White
Control Board No
Power Board No
IC ST7735
Interface SPI
Touch Panel Without Touch Panel
Surface Anti-Glare
Brightness 500 cd/㎡
O-Film No
Operating Temperature -20~+70 °C
Storage Temperature -30~+80 °C

ST7735 TFT LCD SPI Interface Details

Pin Symbol I/O Function
1 LED+ P Back light anode
2 LED- P Back light cathode
3 SPI4W
(VCC=4 WIRE)
I - SPI4W='0', 3-line SPI Enable.
- SPI4W='1', 4-line SPI Enable.
-If Not Used, Please fix this Pin at DGND Level.
4 VCC P Power Supply.
5 GND P Ground
6 CS I Chip enable (CSX)
7 RST I Reset signal (RESX)
8 SDA I/O Serial input/output signal in serial interface mode.
9 SCL I In Serial Interface, this is used as SCL.
10 D/C I Data/ command selection. (D/CX)

Mechanical Dimensions of 1.8-inch ST7735 Display Module

1.8-inch ST7735 TFT Display 128x160 SPI - RFA180G-ALW-DNN Contour Drawing - Raystar

Environmental & Electrical Limits for ST7735 TFT LCD

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 - +70 ℃
Storage Temperature TST -30 - +80 ℃

Operating Conditions

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Analog VCC - 2.5 2.75 3.7 V
Supply LCM Current ICC - - 0.9 2 mA

LED Driving Conditions

Parameter Symbol Min Typ Max Unit
LED Current - - 40 - mA
Power Consumption -  -  128 - mW
LED Voltage VBL+ 2.9 3.2 3.4 V
LED Life Time -  50,000 - - Hr
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