RL043CD130-17B

Pin No.

Symbol

I/O

Description

Note

1

XL

I

Touch Panel Left Electrode

2

YU

I

Touch Panel Top Electrode

3

XR

I

Touch Panel Right Electrode

4

YD

I

Touch Panel Bottom Electrode

5

GND

P

Power ground pin.

6

IOVCC

P

Power supply for digital interface I/O pins

7

VCC

P

Power supply for analog circuit

8

TE

O

Tearing effect output pin is used to synchronize MCU frame writing,

activated by S/W command. When this pin is not activated (TE function

OFF), this pin is GND level.

9

CS

I

Chip select, internal pull high.

10

RS

I

Data or Command flag

DCX = “H” is data

DCX = “L” is command

Internal pull high.

This pin is used to be serial interface clock in 3-wire 9-bit / 4-wire 8-bit serial data interface.

11

WR

8080 system (WRX): Serves as a write signal and writes data at the rising edge.

This pin is used to be serial interface clock in 3-wire 9-bit / 4-wire 8-bit serial data interface.

12

RD

8080 system (RD): Serves as a read signal and MCU read data at the rising edge.

Fix to IOVCC level when not in using.

13

SDA

Serial input/ouput signal in 4-wire 8-bit serial data interface.

The data is applied on rising edge of the SCL signal.

If not used, fix this pin at GND

14

NC

Not Connect

15

RESET

Global reset. Active low, Internal pull high

16

GND

Power ground pin.

17~32

D0~D15

33

VLED+

P

Backlight LED Anode

34~36

VLED-

P

Backlight LED Cathode

37

GND

P

Power ground pin.

38

IM0

I

Interface mode select

39

SPI4W

I

Std SPI 3/4 wire selection.

SPI4W=“H”, 4 wire SPI;

SPI4W=“L”, 3wire SPI.

40

IM1

I

Interface mode select

Pin No.

Symbol

I/O

Description

Note

1

CTP_RST

I

External Reset, Low is active

2

VCC_3.3V

P

power supply

3

CTP_GND

I

Power ground pin.

4

CTP_INT

I

Interrupt request to the host, or Wakeup request from the host.

5

CTP_SCL

I

I2C clock input

6

CTP_SDA

I/O

I2C data input and output