Pin No.

Symbol

Function

1

LEDA

Anode pin of backlight

2

NC

No Connect

3

LEDK

Cathode pin OF backlight

4

NC

No Connect

5

GND

Ground

6

GND

Ground

7

VCC/VCI

Supply voltage(3.3V)

8

VCC/VCI

Supply voltage(3.3V)

9

IOVCC

Supply voltage(1.65-3.3V)

10

SDO

SPI interface output pin.

The data is output on the falling edge of the SCL signal.

If not used, let this pin open.

11-28

DB17-DB0

18-bit parallel bi-directional data bus for MCU system and RGB

interface mode .

Fix to GND level when not in use

29

DIN(SDA)

When IM3: Low, SPI interface input/output pin.

When IM3: High, SPI interface input pin.

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

If not used, please fix this pin at IOVCC or DGND level

30

PCLK

Dot clock signal for RGB interface operation.

Fix this pin at IOVCC or GND when not in use. (2.5V-3.3V)

31

DE

Data enable signal for RGB interface operation.

fix this pin at IOVCC or GND when not in use. (2.5V-3.3V)

32

HSYNC

Line synchronizing signal for RGB interface operation. fix this pin at IOVCC or GND when not in use

33

VSYNC

Frame synchronizing signal for RGB interface operation. fix this pin at IOVCC or GND when not in use

34

RD

Serves as a read signal and MCU read data at the rising edge. fix this pin at IOVCC or GND when not in use

35

WR(SPI-RS)

Write enable in MCU parallel interface.

Display data/command selection pin in 4-line serial interface.

Second Data lane in 2 data lane serial interface.

If not used, please fix this pin at IOVCC or DGND

36

RS(SPI-SCL)

Display data/command selection pin in parallel interface.

This pin is used to be serial interface clock.

RS=’1’: display data or parameter.

RS=’0’: command data.

37

CS

Chip select input pin (“Low” enable).

fix this pin at IOVCC or GND when not in use

38

RESET

This signal will reset the device and must be applied to properly initialize the chip

39

IM0

MPU Parallel interface bus and serial interface select If use RGB Interface must select serial interface.

Fix this pin at IOVCC and GND

40

IM1

41

IM2

42

NC

No Connect

43

NC

No Connect

44

NC

No Connect

45

NC

No Connect

ITEM

Standard Value

Unit

LCD Size

1.30 inch(Diagonal)

Display Mode

Normally White, Transmissive LCD

Module Dimension

35.90(W)*39.70(H)*1.29(T)

mm

Resolution

240(RGB)X 240

Pixels

Active Display Area

32.40(W)×32.40(H)

mm

Pixel pitch

0.135(W) × 0.135(H)

mm

Input Data

MCU/RGB/SPI

Display Colors

65K/262K

Viewing Direction

All

--

LED Backlight Color

White LEDx2

--

Driver IC

ST7789V

Item

Symbol

Values

Unit

Remark

Digital Supply Voltage

VCI

-0.3

4.6

V

Interface Operation Voltage

IOVCC

-0.3

4.6

V

Operating temperature

TOP

-20

70

℃

Storage temperature

TST

-30

80

℃

Item

Symbol

Values

Unit

Remark

Digital Supply Voltage

VCI

2.4

3.3

3.6

V

InterfaceOperation

Voltage

IOVCC

1.65

1.8

3.3

V

Normal mode Current consumption

IDD

--

8.5

--

mA

Level input voltage

VIH

0.7*IOVCC

--

IOVCC

V

VIL

GND

--

0.3*IOVCC

V

Level output voltage

VOH

0.8 IOVCC

--

IOVCC

V

VOL

GND

--

0.2*IOVCC

V

Item

Symbol

Values

Unit

Remark

Forward Voltage

VF

--

6.4

--

V

Forward current

IF

15

20

--

mA

LCM Luminance

Lv

--

500

--

Cd/m2

LED life time

HR

50000

--

--

Hour

Uniformity

AVG

80

--

--

%

Item

Symbol

Condition

Values

Unit

Remar k

Viewing angle (CR≥ 10)

θL

Φ=180°(9 o’clock)

75

80

-

degree

θR

Φ=0°(3 o’clock)

75

80

-

θT

Φ=90°(12 o’clock)

75

80

-

θB

Φ=270°(6 o’clock)

75

80

-

Response
time

TON

Normal
θ=Φ=0°

-

10

20

msec

TOFF

-

15

30

msec

Contrast ratio

CR

400

600

-

-

Color

chromaticity

WX

0.26

0.31

0.36

-

WY

0.28

0.33

0.38

-

Luminance

L

400

500

-

cd/m²

Lumin
ance

YU

70

75

-

%