Quality Inspection for 5 Wire Resistive Touch Screen - 2.8 COF Touch screen Model:DMG32240F028_01W (Commercial grade) - DWIN

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Quality Inspection for 5 Wire Resistive Touch Screen - 2.8 COF Touch screen Model:DMG32240F028_01W (Commercial grade) – DWIN Detail:

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Specification

DMG32240F028_01W
ASIC Information

T5L0 ASIC

T5L0 ASIC is a low-power, cost-effective, GUI and application highly integrated single-chip dual-core ASIC designed by DWIN Technology for small-size LCD and mass produced in 2020.

Display

Color			262K colors
LCD Type			TN, TFT LCD
Viewing Angle			Normal viewing angle, typical value of 70°/70°/50°/70°(L/R/U/D)
Display Area（A.A）			43.2mm(W) ×57.6mm(H)
Resolution			320×240
Backlight			LED
Brightness			DMG32240F028_01WN: 350nit DMG32240F028_01WTR: 300nit

Touch Parameters

Type			RTP(Resistive Touch Panel)
Structure			ITO film + ITO glass
Touch Mode			Support point touch and drag
Surface Hardness			3H
Light Transmittance			Over 80%
Life			Dotting > 1,000,000 times; Stroke > 100,000 times; 150g force, back and forth counted as twice

Voltage & Current

Power Voltage			4.5~5.5V
Operation Current			110mA VCC=5V, max backlight
			75mA VCC=5V, backlight off

Reliability Test

Working Temperature			-10℃~60℃
Storage Temperature			-20℃~70℃
Working Humidity			10%~90%RH, typical value of 60% RH

Interface

User interface			50Pin_0.5mm FPC
Baudrate			3150~3225600bps
Output Voltage			Output 1, Iout = 1mA;3.0~3.3 V
			Output 0, Iout =-1mA;0~0.3 V
Input Voltage （RXD）			Input 1， Iin = 1mA；0~3.3V
			Input 0， Iin = -1mA；0~0.5V
Interface			UART2: TTL; UART4: TTL;（Only available after OS configuration UART5: TTL;（Only available after OS configuration）
Data Format			UART2: N81; UART4: N81/E81/O81/N82;4 modes (OS configuration) UART5: N81/E81/O81/N82;4 modes (OS configuration)

External Interface

Pin	Definition	I/O	Functional Description
1	5V	I	Power supply, DC3.6-5.5V
2	5V	I	Power supply, DC3.6-5.5V
3	GND	GND	GND
4	GND	GND
5	GND	GND
6	AD7	I	5 input ADCs. 12-bit resolution in case of 3.3V power supply. 0-3.3V input voltage. Except for AD6, the rest data is sent to OS core via UART3 in real time with 16KHz sampling rate. AD1 and AD5 can be used in parallel, and AD3 and AD7 can be used in parallel, which equals to two 32KHz sampling AD. AD1, AD3, AD5, AD7 can be used in parallel, which equals to a 64KHz sampling AD; the data is summed 1024 times and then divided by 64 to obtain a 64Hz 16bit AD value by oversampling.
7	AD6	I
8	AD5	I
9	AD3	I
10	AD2	I
11	3.3	O	3.3V output, maximum load of 150mA.
12	SPK	O	External MOSFET to drive buzzer or speaker. The external 10K resistor should be pulled down to the ground to ensure that power-on is low level.
13	SD_CD	I/O	SD/SDHC interface,The SD_CK connects a 22pF capacitor to GND near the SD card interface.
14	SD_CK	O
15	SD_D3	I/O
16	SD_D2	I/O
17	SD_D1	I/O
18	SD_D0	I/O
19	PWM0	O	2 16-bit PWM output. The external 10K resistor should be pulled down to the ground to ensure that power-on is low level. The OS core can be controlled in real time via UART3
20	PWM1	O
21	P3.3	I/O	If using RX8130 or SD2058 I2C RTC to connect to both IOs, SCL should be connected to P3.2,and SDA connected to P3.3 in parallel with 10K resistor pull-up to 3.3V.
22	P3.2	I/O
23	P3.1/EX1	I/O	It can be used as an external interrupt 1 input at the same time, and supports both low voltage level or trailing edge interrupt modes.
24	P3.0/EX0	I/O	It can be used as an external interrupt 0 input at the same time, and supports both low voltage level or trailing edge interrupt modes
25	P2.7	I/O	IO interface
26	P2.6	I/O	IO interface
27	P2.5	I/O	IO interface
28	P2.4	I/O	IO interface
29	P2.3	I/O	IO interface
30	P2.2	I/O	IO interface
31	P2.1	I/O	IO interface
32	P2.0	I/O	IO interface
33	P1.7	I/O	IO interface
34	P1.6	I/O	IO interface
35	P1.5	I/O	IO interface
36	P1.4	I/O	IO interface
37	P1.3	I/O	IO interface
38	P1.2	I/O	IO interface
39	P1.1	I/O	IO interface
40	P1.0	I/O	IO interface
41	UART4_TXD	O	UART4
42	UART4_RXD	I	UART4
43	UART5_TXD	O	UART5
44	UART5_RXD	I	UART5
45	P0.0	I/O	IO interface
46	P0.1	I/O	IO interface
47	CAN_TX	O	CAN interface
48	CAN_RX	I	CAN interface
49	UART2_TXD	O	UART2(UART0 serial port of OS core)
50	UART2_RXD	I	UART2(UART0 serial port of OS core)

Application

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