CRTOUCHB10VFM

Overview

The CRTOUCHB10VFM is a capacitive and resistive touch-sensing platform from NXP USA Inc., packaged in a 5 x 5 mm lead-free 32-pin QFN. It enables resistive touch screens to handle basic gesture recognition and supports up to four independent capacitive electrodes configured as keypads, rotary controls, or sliders. The device operates on 1.8- to 3.6-volt power supplies and supports both four-wire and five-wire touch screen configurations. Communication with the host processor is facilitated via UART and I2C protocols, featuring selectable I2C addresses and automatic UART baud rate detection.

Feature Summary

• Supports standard X/Y resistive touch detection with optional calibration and built-in filtering for stability
• Enables two-touch gesture detection including zoom in/out and rotation angle measurement on four-wire screens
• Integrates four independent capacitive electrodes configurable as keypad, rotary, or slider inputs
• Offers dual communication interfaces (UART and I2C) with event indicator signals and configurable sampling rates up to 200 points per second

Applications

• Control panels
• Human-machine interface (HMI)
• Keyboard replacement systems
• Point-of-sale terminals
• Signature capture devices and kiosks

Procurement Notes

Verify the specific ordering suffix 'B10VFM' against official documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with host voltage levels between 1.8V and 3.6V. Confirm that the selected communication protocol (UART or I2C) aligns with the target system's interface requirements before procurement.

Selection Notes

Select this component when space-constrained designs require combined resistive touch and capacitive input capabilities within a 32-pin QFN footprint. It is suitable for applications needing gesture recognition without complex external processing. Consider the Linux, Android, and PEG integration examples available if software development resources are limited. Verify operating temperature requirements against the -40°C to +105°C industrial range.

Part Context

This part belongs to the Xtrinsic CRTouch Ready Play solutions family, designed to reduce development costs and simplify design cycles. It integrates sensing functionality directly into the touch controller, allowing customers to add features like gestures and capacitive buttons while minimizing software development efforts. The platform targets consumer, automotive, and industrial segments requiring differentiated sensing solutions.

Replacement Considerations

No direct public substitute part numbers are listed in the provided documentation. Evaluate other NXP Xtrinsic touch controllers for similar pin counts and feature sets if availability is an issue. Ensure any replacement maintains support for the required resistive/capacitive hybrid functionality and communication protocols.