IFXCY8CMBR3110-SX2I
Overview
The CY8CMBR3110-SX2I is a CapSense capacitive touch controller featuring SmartSense auto-tuning, designed to replace mechanical buttons with up to 10 touch inputs. It operates over a wide voltage range of 1.8V to 5.5V and includes proximity detection and up to 5 LED driver channels for visual feedback. This hardware-configurable device requires no firmware development, making it an efficient solution for adding robust touch interfaces to embedded systems.
Why Choose This Part
The primary benefit is the SmartSense technology, which automatically tunes the capacitive sensors for optimal performance despite environmental changes or manufacturing variations. It offers extremely low power consumption at 22uA per sensor and simplifies design by eliminating the need for complex touch-sensing firmware or manual capacitor tuning.
Applications
Key Specifications
Getting Started
Engineers can configure the device using the EZ-Click software tool, which generates the configuration file sent over I2C. For evaluation, the CY8CKIT-044 or dedicated CapSense development kits provide a platform to test sensitivity and proximity range settings. Physical implementation requires following strict PCB layout guidelines for trace routing and ground planes to minimize parasitic capacitance.
