TT31XXX TrueTouch® Multi-Touch All-Points Touchscreen Controller
Applications
- Premium market mobile phones
- E-readers, Tablets, Industrial, Other
Key Features
- Multi-touch capacitive touchscreen controller
- 32-bit ARM Cortex™ CPU
- Register configurable
- Noise suppression technologies for battery charger and display
- Waterproofing and wet-finger tracking with DualSense™
- Automatic Mode Switching (AMS) for advanced sensing modes
- 10-finger tracking with 1-mm-thick gloves
- 2-finger tracking with 5-mm-thick gloves
- Passive stylus support with palm rejection and AMS
- System performance (configuration dependent)
- Screen sizes up to 7.0-inch diagonal
- Up to 48 sense pins
- Reports up to 10 fingers
- Best-in-class charger noise immunity (Up to 35 Vpp)
- Power (configuration dependent)
- 1.71- to 1.95-V or 2.0- to 5.5-V digital and I/O supply
- 2.65- to 4.7-V analog supply
- Up to 9-mW average power
- Up to 10.7-µW typical deep-sleep power
- Sensor and system design (configuration dependent)
- Supports a variety of touchscreen sensors and stack-ups
- Single-layer flexible printed circuit (FPC) routing enabled by flexible TX/RX configurations
- Communication Interface
- I2C slave at 100 and 400 kbps
- SPI slave bit rate up to 8 Mbps (Supported in selected parts)
- Package options
- 44-pin 5 × 5 × 0.6-mm QFN (0.35-mm lead pitch)
- 48-pin 6 × 6 × 0.6-mm QFN (0.4-mm lead pitch)
- 56-pin 6 × 6 × 0.6-mm QFN (0.35-mm lead pitch)