AT42QT1244
AT42QT1244 is 24-key QMatrix FMEA IEC/EN/UL60730 Touch Sensor manufactured by Atmel.
Features
- Number of keys:
- Up to 24
- Technology:
- Patented charge-transfer (transverse mode), with frequency hopping
- Key outline sizes:
- 6 mm × 6 mm or larger (panel thickness dependent); different sizes and shapes possible
- Key spacings:
- 8 mm or wider, center to center (panel thickness dependent)
- Electrode design:
- Two-part electrode shapes (drive-receive); wide variety of possible layouts
- Layers required:
- One layer (with jumpers), two layers (no jumpers)
- Electrode materials:
- PCB, FPCB, silver or carbon on film, ITO on film
- Panel materials:
- Plastic, glass, posites, painted surfaces (low particle density metallic paints possible)
- Panel thickness:
- Up to 50 mm glass, 20 mm plastic (key size dependent)
- Key sensitivity:
- Individually settable via simple mands over munication interface
- Interface:
- I2C slave mode (up to 400 k Hz data transfer speed)
- Debug output
- Signal processing:
- Self-calibration, auto drift pensation, noise filtering, Adjacent Key Suppression® (AKS®) technology
- FMEA pliant design features
- IEC/EN/UL60730 pliant design features
- UL approval
- VDE pliance
- For use in both class B and class C safety-critical products
- Detects and Reports Key Failure
- Power:
- +3 V to 5 V
- Package:
- 32-pin 7 × 7 mm TQFP Ro HS pliant
- 32-pin 5 × 5 mm QFN Ro HS pliant
9631EX- AT42- 12/13
1. Pinout and Schematic
1.1 Pinout...
