What is the Additional Feature ?

Name: AR1020-I/ML
Brand: Microchip Technology
SKU: AR1020-I/ML
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Microchip Technology AR1020-I/ML

Part No.:: AR1020-I/ML

Manufacturer:: Microchip Technology

Package:: 20-VFQFN Exposed Pad

Datasheet:: AR1020-I/ML.pdf

Description:: IC SCREEN CNTRL 10BIT 20QFN

In Stock:: 252

Quantity:: Add To Cart

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AR1020-I/ML Typical application Circuitry

AR1020-I ML

The AR1020-I/ML is a touch screen controller integrated circuit (IC) designed to interface with resistive touch panels. It translates touch inputs into digital signals that microcontrollers can understand, making it an essential component in touch-enabled devices. Its features include support for up to 10-bit resolution, providing precise touch location detection, and compatibility with both serial and I²C communication interfaces, which allows for flexibility in connecting with a wide range of microcontrollers and processors.

Application Scenarios and Parameter Features

The AR1020-I/ML is widely used in various applications such as industrial control panels, consumer electronics like e-readers, portable instruments, automotive navigation systems, and any application requiring human-machine interface (HMI) with touch input. Suitable for both indoor and outdoor applications, its primary advantages include low power consumption, support for 4-wire resistive touch displays, and the ability to operate under a wide variety of operating temperatures.

A specific application scenario is its use in an industrial control panel, where operators rely on touch input to control machinery or process parameters.

Specific Circuit Connection

Integrating the AR1020-I/ML into an industrial control panel involves detailed planning for interfacing with the touch panel and the system's microcontroller. Below are detailed circuit connections and considerations:

1. Power Supply Connection: First, connect the VDD pin of the AR1020-I/ML to a 3.3V power supply, ensuring the GND pin is connected to the system ground. To reduce noise, decoupling capacitors must be used in close proximity to the power supply pins.

2. Touch Panel Interface: Connect the Y+, Y-, X+, and X- pins of the AR1020-I/ML directly to the corresponding pins on the 4-wire resistive touch panel. These connections are crucial for accurately detecting touch positions.

3. Communication Interface Setup: For communication with the microcontroller, you can use either the I²C or serial UART interface. For I²C, connect the SDA and SCL pins to the corresponding I²C bus lines on the microcontroller, ensuring pull-up resistors are in place. For serial communication, connect the TX and RX pins to the microcontroller's RX and TX pins, respectively.

4. Interrupt Line: The AR1020-I/ML provides an interrupt output (INT) that can be used to alert the microcontroller of a touch event. Connect the INT pin to an external interrupt pin on the microcontroller to enable immediate response to touch inputs.

Design Considerations

When designing the circuit, several issues must be addressed:

- Power Supply Quality: Ensure the power supply is stable and clean to avoid erratic touch detection.

- Communication Interface Choice: Choose between I²C and serial based on the microcontroller capabilities and the system's communication needs. I²C might be preferable for simplicity and fewer wiring requirements, while serial could be chosen for longer distance communication.

- Touch Panel Calibration: Implement a calibration procedure to accurately translate touch positions into screen coordinates. This typically involves software routines running on the microcontroller.

- Environmental Conditions: Consider the operating environment, especially if the control panel will be used outdoors or in industrial settings where extreme temperatures, moisture, or electromagnetic interference (EMI) might affect the touch panel's performance.

By carefully considering these design principles and ensuring proper connections to the AR1020-I/ML, developers can effectively integrate this touch screen controller into industrial control panels or other touch-enabled devices, enhancing the user interface with reliable touch input capabilities.

AR1020-I/ML information

AR1020-I/ML Specifications

Package/Case:
20-VFQFN Exposed Pad
Packaging:
Tube
Series:
mTouch™
ProductStatus:
Active
Touchscreen:
4, 5, or 8 Wire Resistive
Resolution(Bits):
10 b
Interface:
I²C, Serial, SPI
VoltageReference:
-
Voltage-Supply:
2.5V ~ 5V
Current-Supply:
17 mA
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

AR1020-I/ML FAQ

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3. Are the AR1020-I/ML price and inventory displayed accurate?

The price and inventory of AR1020-I/ML fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of AR1020-I/ML?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AR1020-I/ML we delivered, we will accept the replacement or return of the AR1020-I/ML only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of AR1020-I/ML.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations