CPT007B-A02-GU Silicon Labs

TouchXpress Family CPT007B Data Sheet The CPT007B device, part of the TouchXpress family, is designed KEY FEATURES to quickly replace mechanical buttons with modern capacitive No firmware development required touch buttons by eliminating firmware complexity and reducing de- Simple GUI-based configurator velopment time. 7 Capacitive Sensor inputs with programmable sensitivity Supporting up to 7 capacitive sensor inputs in packages as small as a 3 mm x 3 mm QFN, the CPT007B is a highly-integrated device that provides a simple solution for add- 7 General purpose outputs (GPOs) to communicate to the host processor or drive ing capacitive touch. The device also comes with advanced features like moisture im- LEDs munity, wake-on proximity, and buzzer feedback for an enhanced user experience. No firmware development is needed, and all the capacitive touch sense parameters can be Lowest power capacitive sense solution configured using a simple GUI-based configurator. By eliminating the need for complex Active 200 A firmware development, the CPT007B device enables rapid user interface designs with Sleep 1 A minimal development effort. Wake on proximity Superior noise immunity: SNR up to 270:1 The CPT007B device is ideal for a wide range of capacitive touch applications, including Moisture immunity the following: Mutually-exclusive touch qualifier Medical equipment Home appliances Button touch time-out to avoid false Consumer electronics Instrument / Control panels touches Lighting control White goods Buzzer output for audible touch feedback Input Capacitive Touch Sensing Output Features Features Features Mutually- Configurable Proximity Wake Touch Exclusive Touch Output Pin for Input Qualification Qualifier each Input Input Engine Configuration Optional Buzzer with Profile for each Baselining Output 7 Inputs Input Low Power State Touch Time-Out Machine Timer Lowest power mode with feature operational: Active Optimized Active Low Power Sleep silabs.com Smart. Connected. Energy-friendly. Preliminary Rev. 0.2 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. CPT007B Data Sheet Feature List and Ordering Information 1. Feature List and Ordering Information CP T 0 07 B A 02 G M R Tape and Reel (Optional) Package Type QFN20 (M), QSOP24 (U) 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) TouchXpress Family Silicon Labs Xpress Product Line Figure 1.1. CPT007B Part Numbering The CPT007B has the following features: Capacitive sensing input engine with 7 inputs Post-sample touch qualification engine Configuration profile space in non-volatile memory Pin output with configurable polarity and drive strength Low power state machine to minimize current draw in all use cases Capacitive proximity sensing input Buzzer output Mutually exclusive touch qualifier Touch time-out timer Table 1.1. Product Selection Guide CPT007B-A02-GM Yes -40 to +85 C QFN20 CPT007B-A02-GU Yes -40 to +85 C QSOP24 silabs.com Smart. Connected. Energy-friendly. Preliminary Rev. 0.2 1 Ordering Part Number Pb-free (RoHS Compliant) Temperature Range Package