Capacitive Touchscreen TFT LCD 3.5 with Controller Board - RFC35BQ-EIW-DBC
Capacitive Touchscreen TFT LCD 3.5 with Controller Board - RFC35BQ-EIW-DBC
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
Size (Diagonal) 3.5 inch
Dot Matrix / Resolution 320 × RGB × 240 (TFT) dots
Module Dimension 93.5 × 66.44 × 8.56 mm
View Area 73.1 × 55.5 mm
Active Area 70.08 × 52.56 mm
Dot / Pixel Pitch 0.073 × 0.219 mm
LCD Type TFT, Normally White, Transmissive
View Direction 12 o’clock
Gray Scale Inversion Direction 6 o’clock
Aspect Ratio 4:3
Backlight Type LED, Normally White
Control-Board Yes
Built-in Controller SSD1963
Interface Digital 8080 family MPU 8bit/16bit
PCAP FW Version FN032A024__FT5426_V03_20180614_all.bin
PCAP IC FT5426DQ8
PCAP Interface I2C
Detect Points 5 Points
Touch Panel Projected capacitive touch panel, PCAP
Surface Glare
Brightness 340 cd/㎡
Frame Through Hole Yes
Operating Temperature -20~+70 °C
Storage Temperature -30~+80 °C
TFT Series TFT LCD Module with Controller Board
Pin Symbol Function
1 GND System ground pin of the IC.   
Connect to system ground.
2 VDD Power Supply : +3.3V
3 BL_E Backlight control signal , H: On \ L: Off
4 D/C Data/Command select
5 WR Write strobe signal
6 RD Read strobe signal
7 DB0 Data bus
8 DB1 Data bus
9 DB2 Data bus
10 DB3 Data bus
11 DB4 Data bus
12 DB5 Data bus
13 DB6 Data bus
14 DB7 Data bus
15 DB8 Data bus
16 DB9 Data bus (When select 8bits Mode, this pin is NC)
17 DB10 Data bus (When select 8bits Mode, this pin is NC)
18 DB11 Data bus (When select 8bits Mode, this pin is NC)
19 DB12 Data bus (When select 8bits Mode, this pin is NC)
20 DB13 Data bus (When select 8bits Mode, this pin is NC)
21 DB14 Data bus (When select 8bits Mode, this pin is NC)
22 DB15 Data bus (When select 8bits Mode, this pin is NC)
23 NC No connect
24 CTP_INT External interrupt to the host
25 CS Chip select
26 RST Hardware reset
27 NC No connect
28 NC No connect
29 CTP_SCL I2C clock input
30 CTP_SDA I2C data input and output
31 CTP_RST External Reset, Low is active
32 NC No connect
33 VLED- VLED- for B/L  LED inverter  (GND)
34 VLED- VLED- for B/L  LED inverter  (GND)
35 VLED+ VLED+ for B/L  LED inverter  (+3.3V)
36 VLED+ VLED+ for B/L  LED inverter  (+3.3V)

Capacitive Touchscreen TFT LCD 3.5 with Controller Board - RFC35BQ-EIW-DBC

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

Operating conditions (CON2.Pin1=GND, Pin2=VDD)

Item Symbol Condition Min Typ Max Unit
Supply Voltage For LCM VDD 3.0 3.1 3.3 V
Supply Current For LCM IDD 210 350 mA

Backlight driving conditions (CON2.Pin33,34=VLED-, Pin35,36=VLED+)

Parameter Symbol Min Typ Max Unit
Operation Current For LED Driver VLED=3.3V 150 - 225 mA
Power Consumption VLED=3.3V 495 - 742.5 mW
Supply Voltage For LED Driver VLED+ 3.3 - 5 V
LED Life Time   - 50,000 - Hr
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