3.2 inch lcd display screen

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DESCRIPTION

The K320I20300 is a 3.2-inch tft LCD module with optional resistive touch screen and capacitive touch screen control with a resolution of 240×320 pixels. This size TFT LCD monitor is portrait mode with wider viewing angle by POL adjustment, left: 45/right: 45/up: 50/down: 20 degrees (typical).Optional RTP or CTP.

This K320I20300 module has built-in ST7789V controller IC, supports SPI interface, the power supply voltage (VCC) range is 3.0V to 3.6V, the brightness is 400 nits (typ), and the contrast ratio is 800:1. This module is a coffee machine, communication Industrial ideal for equipment, beauty equipment, etc. The module can operate from -20°C to +70°C; its storage temperature range is -30°C to +80°C

DRAWING

SPECIFICATIONS

General Specifications

Item	Contents	Unit
Size	3.2	inch
LCM Dimension	55.04（W）* 77.20（H） * 2.5(T)	mm
LCD Active Area	48.60* 64.80	mm
Number Of Dots	240×320	pixel
LCD Type	a-Si TFT
Viewing Direction	12 o’clock
Driver IC	ST7789V
Interface Type	SPI
Operating Temperature	-20℃~ 70℃
Storage Temperature	-30℃~ 80℃
Backlight Type	5 LEDs
Brightness	400	cd/m2

Interface

LCM PIN Definition

NO.	Symbol	Description
1	LEDK	BACKLIGHT CATHODE
2	LEDA	BACKLIGHT ANODE
3	GND	Ground
4	RESET	Reset pin
5	SDA	Serial Data Input
6	SCL	Serial  Clock
7	RS	Destination register selection.
8	CS	Chip Select
9	TE	Frame mark.
10	GND	Ground
11	IOVCC	I/O   POWER SUPPLY
12	VCC	POWER SUPPLY
13	GND	Ground
14	GND	Ground
15	GND	Ground
16	GND	Ground
17	NC	NC
18	NC	NC
19	NC	NC
20	NC	NC

DC Characteristics

Item	Symbol	Min	Typ	Max	Unit
TFT gate on voltage	VGH	—	15	—	V
TFT gate off voltage	VGL	—	-10	—	V
TFT common electrode Voltage	Vcom	—	-1	—	V

Typical Operation Conditions

Item	Symbol	Min.	Typ.	Max.	Unit
Analog Supply Voltage	VCI	2.5	2.8	3.3	V
Digital Supply Voltage	VDD	2.5	2.8	3.3	V
I/O Supply Voltage	IOVCC	1.65	1.8/2.8	3.3	V
Input High Voltage	VIH	0.8*IOVCC	–	IOVCC	V
Input Low Voltage	VIL	0	–	0.2*IOVCC	V
Output High Voltage	VOH	0.8*IOVCC	–	–	V
Output Low Voltage	VOL	–	–	0.2*IOVCC	V

Backlight Circuit Characteristics

Item	Symbol	Min.	Typ.	Max.	Unit
LED Current	IB	—	75	100	mA
LED Voltage	Vf	2.8	3.0	3.2	V
CIE	X	0.25	0.30	0.35
	Y	0.26	0.31	0.36
Brightness of LCM	L	—	400	—	cd/m2

Reliability Test Items

Test Item	Test Condition	Test result determinant gist
High temperature storage	80±3 ℃，48H；
Low temperature storage	~30±3 ℃，48H；
High temperature storage	70±3 ℃，48H；	Inspection after 2~4hours storage at  roomtemperature,
Low temperature operation	~20±3 ℃，48H；	the sample shall be free from defects:
High temperaturehumi/dity	60℃±3 ℃,90%±3%RH ，48H；	1.Air bubble in the LCD;
Thermal Shock	~20℃/0.5h~+70℃/0.5h for a total 24 cycles；	2.Non-display;
Vibration Test	Frequency 10Hz~55Hz~10Hz	3.Glass crack;
	Amplitude：1.5mm, X，Y，Z
	direction for total 1H；	4. The electrical
	(Packing condition)
ESD test	±4KV, Human Body Mode,	characteristics requirements shall be satisfied.
	150pF/330Ω；
	±8KV, Air Mode, 150pF/330Ω；

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