2 Pin Configuration
| Name | 20-Pin VQFN | 20-Pin SSOP | Type | Comments | If Unused |
|---|---|---|---|---|---|
| EASY TUNE | 1 | 4 | I | Enable/Disable Easy Tune Feature | Connect to VDD |
| BUTTON0 | 2 | 5 | I | Sensor Electrode for Button 0 | Should not be left open |
| BUTTON1 | 3 | 6 | I | Sensor Electrode for Button 1 | Connect to VDD |
| BUTTON2 | 4 | 7 | I | Sensor Electrode for Button 2 | Connect to VDD |
| SHIELD | 5 | 8 | O | Shield Electrode Output Driver | Leave open |
| SINGLE-BUTTON | 6 | 9 | I | Enable/Disable Single-Button Mode | Connect to VDD |
| BUTTON3 | 7 | 10 | I | Sensor Electrode for Button 3 | Connect to VDD |
| BUTTON4 | 8 | 11 | I | Sensor Electrode for Button 4 | Connect to VDD |
| BUTTON5 | 9 | 12 | I | Sensor Electrode for Button 5 |
Connect to VDD |
| OUT0 | 10 | 13 | OD | Touch Indication for Button 0 | Leave open |
| OUT1 | 11 | 14 | OD | Touch Indication for Button 1 | Leave open |
| OUT2/TUNE_EN | 12 | 15 | OD/I |
Touch Indication for Button 2 Or Enable Tune Data* | Leave open |
| OUT3/TUNE_TX | 13 | 16 | OD/O |
Touch Indication for Button 3 Or Serial Data Transmission* | Leave open |
| OUT4 | 14 | 17 | OD | Touch Indication for Button 4 | Leave open |
| OUT5 | 15 | 18 | OD | Touch Indication for Button 5 | Leave open |
| CFG0 | 16 | 19 | I | Response Time | Should not be left open |
| VSS | 17 | 20 | P | Supply Ground | NA |
| VDD | 18 | 1 | P | Power | NA |
| CFG1 | 19 | 2 | I | Oversampling | Should not be left open |
| CFG2 | 20 | 3 | I | Sensitivity | Should not be left open |
| I – Input; O – Output; OD – Open
Drain. * When Tune Data is enabled, touch indication will not be indicated on any of the OUTx pins. | |||||