The STMPE821QTR from STMicroelectronics is a highly integrated touch screen controller designed to deliver an exceptional user interface experience for a wide range of applications. This device is part of the STMPE series, which are touchscreen controllers that provide a versatile solution for small to medium-sized touch-enabled devices.

Features and Benefits

• Advanced Touch Detection: The STMPE821QTR features a sophisticated touch sensing capability that supports detection of multiple touch points, offering a highly responsive touch experience.
• High Integration: This controller integrates a 12-bit SAR ADC and an 8-channel GPIO expander, reducing the need for additional components and simplifying the overall design process.
• Flexible Communication: With I2C and SPI interfaces, the STMPE821QTR provides flexible options for communication with the main processor, ensuring compatibility with a wide range of systems.
• Low Power Consumption: Designed for power-sensitive applications, it features a low power mode to conserve energy when the touch function is not in use.
• Adjustable Sensitivity: The sensitivity of the touch detection can be adjusted through software settings, allowing for customization according to different screen sizes and overlay thicknesses.

Applications

The STMPE821QTR is ideal for a variety of applications that require reliable and precise touch input. These include:

• Smartphones and Tablets
• Personal Navigation Devices
• Point of Sale Terminals
• Industrial Control Panels
• Medical Equipment

Technical Specifications

The STMPE821QTR operates over a wide temperature range and comes in a compact QFN package. It supports a voltage range that is suitable for battery-operated devices and is designed to interface directly with a variety of touch screens.

Ordering Information

The product is available in tape and reel packaging, allowing for ease of integration into automated manufacturing processes. The part number STMPE821QTR represents the specific model in the QFN package with the tape and reel option.