Crystalfontz

CFAF320480C5-035T-TS TFT Display Module

www.crystalfontz.com

Datasheet Release Date 2017-07-31

Page | 8

Pin

Symbol

Level

Direction

Function

36

WR_SCK

-

I

DBI Type-B: Serves as a write signal and write data at the

low level.

DBI Type-C: Serves as Serial Clock (SCK).

37

D/C

H/L

-

Data/Command Control. Determines whether data bits are

data or command.

1 – High: Addresses the data register.

0-

Low: Addresses the command register.

38

CS

H/L

I

Chip Select Input Pin.

Low: Controller Chip is Selected. Communication with host

is possible.

High: Controller Chip is Not Selected. Host interface

signals are ignored by the controller.

39-42

See Function

Column

-

-

XR (X+): Right

YD (Y-): Down

XL (X-): Left

YU (Y+): Up

43

-

-

Supply Pin for LED. “A” (anode) or “+” of LED backlight.

44-49

(LED-)

-

-

Individual supply pins for LED. “K” (cathode or kathode for

German and original Greek spelling), or “-“ of LED

backlight.

50

GND

-

-

Ground.

7. Touch Screen Connections (4-Wire Analog)

NOTE: The touch screen must be driven in one direction, then read in the other direction.

7.1. ESD (ELECTRO-STATIC DISCHARGE)

The circuitry is industry standard CMOS logic and is susceptible to ESD damage. Please use

industry standard antistatic precautions as you would for any other static sensitive devices such

as expansion cards, motherboards, or integrated circuits. Ground your body, work surfaces, and

equipment.