CPT007B-A01-GM

Overview

The CPT007B-A01-GM is a fixed-function capacitive touch controller from the TouchXpress family, designed to replace mechanical buttons. It supports up to seven capacitive sensor inputs and features seven general-purpose outputs for host communication or LED driving. The device operates on an I2C interface within a 3 mm x 3 mm QFN-20 package. Electrical specifications include a supply voltage range of 1.8 V to 3.6 V, with typical operating voltages at 2.4 V. Power consumption is rated at 200 µA in active mode and 1 µA in sleep mode. The component functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Eliminates firmware development complexity through fixed-function hardware design
• Provides moisture immunity and wake-on-proximity capabilities for enhanced user experience
• Configurable via simple GUI-based tools without custom code implementation

Applications

• Home appliances and white goods control panels
• Medical equipment interfaces
• Consumer electronics user interfaces
• Lighting control systems

Procurement Notes

Verify current availability status as distribution channels may restrict sales in specific regions. Confirm RoHS compliance details directly with the manufacturer or authorized distributors before procurement. Check for any product discontinuance notifications or end-of-life notices that may affect long-term supply chain stability.

Selection Notes

Select this component when firmware resources are limited or development time must be minimized. Ensure the application requires no more than seven touch inputs. Verify that the host processor supports I2C communication. Consider power constraints, as the device offers low-power modes suitable for battery-operated applications requiring minimal active and sleep currents.

Part Context

This part belongs to the Silicon Labs TouchXpress family of fixed-function controllers. It shares design principles with other models like the CPT007B-A02-GU but differs in interface type, utilizing I2C rather than GPIO. The series aims to simplify capacitive touch integration by removing the need for complex software drivers and configuration algorithms typically required in programmable touch solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate newer TouchXpress variants such as the CPT112S for expanded channel counts or different interface requirements. Verify pin compatibility and electrical characteristics if considering alternative manufacturers' capacitive touch controllers.