Mini 1.77-inch TFT LCD Module - RFA180F-ALW-DNN - Raystar

1.77-inch TFT LCD Module 128x160 MCU (ST7735S IC)

Model No. RFA180F-ALW-DNN

The RFA180F-ALW-DNN is a 1.77-inch 128×160 MCU TFT LCD module, designed as a compact and reliable 1.77 TFT LCD solution featuring the ST7735S driver IC. It delivers clear and stable visual performance within a 28.03 × 35.04 mm active area, making it ideal for embedded applications that require a dependable 1.77 TFT display. With its integrated ST7735S supporting an MCU parallel interface, this TFT 1.77 module ensures smooth system integration and efficient display control.

Engineered for dependable operation, this 1.77 TFT LCD module performs reliably across –20°C to +70°C, suitable for various indoor and outdoor environments. Its low power requirements, including a typical LCM current of 0.9 mA, together with a long-life white LED backlight rated at 50,000 hours, provide excellent energy efficiency and durability for continuous-use systems that require a stable 1.77 TFT display.

If you need technical support or product quotes for the RFA180F-ALW-DNN or other 1.77-inch 128×160 MCU TFT LCD Modules, please feel free to contact our sales team!

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
TFT Series	Standard TFT
Size (Diagonal)	1.77	inch
Dot Matrix / Resolution	128 × RGB × 160 (TFT)	dots
Module Dimension	34.0 (W) × 45.83 (H) × 2.65 (D)	mm
Outline Dimension	34 × 45.83	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	ST7735S
Interface	MCU
Touch Panel	Without Touch Panel
Surface	Anti-Glare
Brightness	500	cd/㎡
O-Film	No
Operating Temperature	-20~+70	°C
Storage Temperature	-30~+80	°C

MCU Parallel Interface & ST7735S Control

Pin No.

Symbol

I/O

Function

VLED-

Back light cathode

VLED+

Back light anode

IM0

- MCU Parallel Interface Type Selection
-If Not Used, Please Fix this Pin at VDDI or DGND Level.

IM1	IM0	Parallel Interface
0	0	MCU 8-bit Parallel
0	1	MCU 16-bit Parallel
1	0	MCU 9-bit Parallel
1	1	MCU 18-bit Parallel

IM1

IM2

MCU Parallel Interface Bus and Serial Interface select
IM2=’1’, Parallel Interface
IM2=’0’, Serial Interface

RESET

Reset signal

7~12

No Connect

13-28

DB15-DB0(SPI_SDA)

I/O

DB15:0] are used as MCU parallel interface data bus.
-DBis the serial input/output signal in serial interface mode.
-In serial interface, DB15:1] are not used and should be fixed at VDDI or DGND level.

No Connect

Read Enable in 8080 MCU Parallel Interface.
-If not used, please fix this pin at VDDI or DGND level.

Serial clock
-Write Enable in MCU Parallel Interface.
-If not used, please fix this pin at VDDI or DGND level.

D/C(SPI_SCL)

-Display data/command Selection Pin in MCU Interface.
-D/CX=’1’: Display Data or Parameter.
-D/CX=’0’: Command Data.
-In Serial Interface, this is used as SCL.
-If not used, please fix this pin at VDDI or DGND level.

CS(SPI_CS)

Chip enable

IOVCC

Interface Operation Voltage

VCI

Analog Supply Voltage

GND

Ground

37-40

No Connect