STMPE811QTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Touchscreen Controller
• Characteristics:
  • Compact size
  • Low power consumption
  • High precision touch sensing
  • Supports multiple touch points
• Package: QFN (Quad Flat No-leads)
• Essence: The STMPE811QTR is a highly integrated touchscreen controller designed for various applications requiring touch input functionality.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Operating Voltage: 1.8V to 3.6V
• Interface: I2C (Inter-Integrated Circuit)
• Touch Sensing Channels: 4-wire resistive touch panel support
• Resolution: Up to 4096 x 4096
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: 4mm x 4mm x 0.55mm

Pin Configuration

The STMPE811QTR has the following pin configuration:

| Pin Name | Description | |----------|-------------| | VDD | Power supply voltage | | GND | Ground | | SDA | I2C Serial Data Line | | SCL | I2C Serial Clock Line | | INT | Interrupt output | | TIRQ | Touch panel interrupt request | | TCLK | Touch panel clock | | TCS | Touch panel chip select | | TDIN | Touch panel data input | | TDO | Touch panel data output | | TOUT | Touch panel analog output |

Functional Features

• Supports both single-touch and multi-touch gestures
• Built-in hardware filtering for noise reduction
• Automatic touch detection and reporting
• Programmable interrupt generation
• Configurable touch panel parameters

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into various devices - Low power consumption prolongs battery life in portable applications - High precision touch sensing enables accurate input recognition - Supports multiple touch points, enhancing user experience

Disadvantages: - Limited to 4-wire resistive touch panel support - Requires external components for touch panel interfacing

Working Principles

The STMPE811QTR operates by detecting changes in resistance on a connected 4-wire resistive touch panel. It utilizes an I2C interface to communicate with the host microcontroller, providing touch data and control signals. The controller employs advanced algorithms to filter out noise and accurately detect touch inputs.

Application Field Plans

The STMPE811QTR is suitable for a wide range of applications that require touch input functionality, including but not limited to: - Mobile phones and tablets - Portable gaming devices - Industrial control panels - Home automation systems - Automotive infotainment systems

Alternative Models

Here are some alternative models that offer similar functionality to the STMPE811QTR: - STMPE610QTR - TSC2007IPW - ADS7843E

These models can be considered based on specific project requirements and availability.

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