Features
- SmartSense Enabled
- Robust noise performance
- Strong immunity to Radio Frequency (RF) and Alternating Current (AC) noise
- No manual tuning required
- Supports wide range of input capacitance (5 to 40pf)
- Emulates Mechanical Matrix Interface for compatibility in retrofit environments
- Truth Table Interface
- Key Scan Interface
- Up to 16 CapSense Buttons (4x4 Matrix)
- Flanking Sensor Suppression Configurable
- Simultaneous Key Press Enabled
- Auto Reset HW Configurable
- Speaker Drive (Piezo)
Key Applications
- Security Panels
- Card reader keypad
- Biometric scanner keypad
- Fire alarm Control Panel
- Thermostat
- POS Terminal keypads
- Cordless phone keypads
- ATM Machine keypads
- VOIP phone keypads
Communication Interface
The communication interface for this solution is GPO. This Matrix solution is backwards compatible with standard mechanical matrix overlays, offering the required output to communicate with a host processor.
This solution can emulate a typical Keypad Scan Interface similar to that of a mechanical keypad.
Block Diagram