Crystalfontz

CFAF240400C0-030SC TFT Display Module

https://www.crystalfontz.com

Datasheet Release Date 2019-06-03

Page | 7

6. Display Pin Table

PIN No.

Symbol

Function

1

IM0

Interface Select

2

IM1

Interface Select

3

IM2

Interface Select

4

RESET

Active LOW Reset

5

VSYNC

Vertical Sync. Used in RGB mode. If not used, set to GND

6

HSYNC

Horizontal Sync. Used in RGB mode. If not used, set to GND

7

PCLK

Pixel Clock. Used in RGB mode. If not used, set to GND

8

DE

Data Enable. Used in RGB mode. If MDDI mode is set and this pin

is not in use, leave open. Otherwise if not being used, set to GND

9-26

DB17- DB00

Data bus pins. If MDDI mode is set and these pins are not in use,

leave open. Otherwise if not being used, set to GND

27

SD0

Serial Data Output

28

DIN/SDA

Serial Data Input

29

RD

Read Select

30

WR/SCL

Write Select/Serial Clock.

31

RS

Register Select (Data/Command select) 1 = Data, 0 = Command

32

CS

Chip Select Active LOW

33-34

VCC

Supply Voltage 2.5V-3.6V

35-36

GND

Ground

37

LEDK4

LED 4 Cathode

38

LEDK3

LED 3 Cathode

39

LEDK2

LED 2 Cathode

40

LEDK1

LED 1 Cathode

41

LEDA

LED Anode

42

XR

NC

43

YD

NC

44

XL

NC

45

YU

NC

7. Interface Table

IM0

IM1

IM2

Function

0

0

0

18-bit interface

0

0

1

9-bit interface, MDDI

0

1

0

16-bit interface

0

1

1

8-bit interface

1

0

1

3-Wire SPI

1

1

1

4-Wire SPI

Notes:

(1)

RGB can be used in conjunction with SPI. See Appendix for detailed pinouts.