TouchXpress Family CPT213B Data Sheet The CPT213B device, part of the TouchXpress family, is designed KEY FEATURES to quickly add IEC 60730 Class B capacitive touch via an I2C in- terface by eliminating the firmware complexity and reducing the No firmware development required development time for capacitive sensing applications. Simple GUI-based configurator 13 Capacitive Sensor inputs with Supporting up to 13 capacitive sensor inputs in packages as small as a 4 mm x 4 mm programmable sensitivity QFN, the CPT213B is a highly-integrated device that interfaces via I2C to the host pro- IEC-compliant I2C interface to cessor to provide a simple solution for adding capacitive touch. The device also comes communicate to and configure from the with advanced features like an IEC safety library and moisture immunity. No firmware de- host velopment is needed, and all the capacitive touch sense parameters can be configured IEC 60730 Class B safety library using a simple GUI-based configurator. By eliminating the need for complex firmware de- Superior noise immunity: SNR up to 270:1 velopment, the CPT213B device enables rapid user interface designs with minimal de- Moisture immunity velopment effort. The CPT213B device is ideal for a wide range of capacitive touch applications including the following: Medical equipment Home appliances Lighting control White goods Instrument / Control panels Input Capacitive Touch Sensing Output Features Features Features Touch IEC Safety IEC-Compliant I2C Event Buffer Qualification Library I2C Output Input Engine with 13 Inputs Configuration Profile for each Baselining Interrupt Pin Input Lowest power mode with feature operational: Active silabs.com Building a more connected world. Rev. 1.1 CPT213B Data Sheet Feature List and Ordering Information 1. Feature List and Ordering Information CP T 2 13 B A 01 G M R Tape and Reel (Optional) Package Type QFN24 (M) Temperature Grade 40 to +85 C (G) Firmware Revision Hardware Revision Capacitive Sense Features Button (B) Number of Capacitive Sense Inputs Interface Type GPO (0), I2C (1), Configuration I2C (2) TouchXpress Family Silicon Labs Xpress Product Line Figure 1.1. CPT213B Part Numbering The CPT213B has the following features: Capacitive sensing input engine with 13 inputs Post-sample touch qualification engine IEC safety library Configuration profile space in non-volatile memory IEC-compliant I2C event buffer with interrupt pin to signal when new touch events have been qualified Configuration loading with both the dedicated configuration interface and through the I2C interface Table 1.1. Product Selection Guide CPT213B-A01-GM Yes Yes -40 to +85 C QFN24 See