3.9, 480x128 Top View Bar (PCAP) TFT LCD Display - RFS390C-AIW-DNG - Raystar
3.9, 480x128 Top View Bar (PCAP) TFT LCD Display - RFS390C-AIW-DNG - Raystar
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
Size (Diagonal) 3.9 inch
Dot Matrix / Resolution 480 × 128 × RGB (TFT) dots
Module Dimension 105.5(W) × 37.0(H) × 5.2(D) mm
View Area 96.04 × 26.34 mm
Active Area 95.04 × 25.34 mm
Dot / Pixel Pitch 0.066(W) × 0.198(H) mm
LCD Type TFT, Normally White, Transmissive
View Direction 12 o’clock
Gray Scale Inversion Direction 6 o’clock
Aspect Ratio Bar Type
Backlight Type LED, Normally White
Control-Board No
TFT Driver IC HX8278-A or equivalent
Interface RGB-24BIT
PCAP FW Version 0x0001
PCAP IC CYTM568 or equivalent
Detect Points 5 Points
Touch Panel Projected Capacitive Touch Screen, PCAP
Surface Glare
Brightness 400 cd/㎡
Frame Through Hole No
Operating Temperature -20~+70 °C
Storage Temperature -30~+80 °C
TFT Series Bar Type TFT LCD

LCM PIN Definition

No. Symbol Description
1 VLED- Backlight LED Cathode
2 VLED+ Backlight LED Anode.
3 GND System Ground
4 VCC Power supply for logic operation
5~12 R0~R7 Data bus
13~20 G0~G7 Data bus
21~28 B0~B7 Data bus
29 GND System Ground
30 DCLK Pixel clock signal
31 DISP Display on/off control
32 HSYNC Horizontal Sync signal
33 VSYNC Vrtical Sync signal
34 NC No connection (Option DE)
35 NC No connection
36 GND System Ground
37 NC No connection
38 NC No connection
39 NC No connection
40 NC No connection

PCAP PIN Definition

Pin Symbol Function
1 VSS Ground for analog circuit
2 VDDT Power Supply : +3.0V
3 SCL I2C clock input.
4 NC No connect
5 SDA I2C data input and output
6 NC No connect
7 /RST External Reset, Low is active
8 NC No connect
9 /INT External interrupt to the host
10 VSS Ground for analog circuit

3.9, 480x128 Top View Bar (PCAP) TFT LCD Display - RFS390C-AIW-DNG - Raystar

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 LCM VCC 3.0 3.3 3.6 V
Supply Current For LCM ICC 15 25 mA
Supply Voltage For Touch Logic VDDT 2.8 3.3 V
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