STMPE610QTR

Overview

The STMPE610QTR is a touchscreen controller and GPIO port expander manufactured by STMicroelectronics. It integrates a 4-wire resistive touchscreen controller with a 128-depth buffer, a 6-bit port expander, and a 6-input 12-bit ADC. The device operates on a 1.8 V to 3.3 V supply and supports both I2C and SPI interfaces. Key features include movement detection algorithms, wakeup capabilities on each I/O, and robust ESD protection rated at 25 kV air-gap and 4 kV HBM. It is housed in a 16-pin QFN package (3x3 mm) and is supplied in tape and reel packaging.

Feature Summary

• Integrated 4-wire touchscreen controller with 128 x 32 bit buffer and movement tracking algorithm
• 6 general-purpose input/output (GPIO) pins with individual wakeup features
• 6-channel 12-bit analog-to-digital converter (ADC)
• Dual interface support for I2C (up to 400 Kbps) and SPI (up to 1 MHz)

Applications

• Portable media players
• Game consoles
• Mobile and smartphones
• GPS devices

Procurement Notes

Verify the component status as the STMPE610 series may be subject to end-of-life notices. Confirm the specific revision number via the ID_VER register (0x03 for final silicon) during integration. Ensure the MODE pin is correctly configured at reset to select between I2C and SPI protocols before system initialization.

Selection Notes

Select this component when a combined solution for touchscreen digitizing and GPIO expansion is required in space-constrained designs. The 16-VFQFPN (3x3 mm) package is suitable for small form factors. Verify that the host processor supports either I2C or SPI communication protocols and can handle the required voltage levels (1.8 V to 3.3 V).

Part Context

The STMPE610QTR belongs to the S-Touch family of advanced touchscreen controllers from STMicroelectronics. The 'Q' suffix indicates RoHS compliance and halogen-free construction, while 'TR' denotes tape and reel packaging. It serves as an interface bridge between digital ASICs and peripheral touch inputs, reducing the GPIO load on the main processor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Check for obsolescence notices as the product status may indicate end-of-life.