SUMMARY
CYTMA545
TrueTouch
®
Multi-Touch All-Points
Touchscreen Controller
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document Number: 001-90908 Rev. ** Revised February 19, 2014
Features
■ Multi-touch capacitive touchscreen controller
❐ 32-bit ARM Cortex™ CPU
❐ Register configurable
❐ Noise suppression technologies for battery charger and
display
• Effective 28-V drive for higher signal-to-noise ratio (SNR)
• ChargerArmor™ for charger noise immunity
• External display synchronization
❐ Water rejection and wet finger tracking using DualSense™
❐ Multi-touch glove with automatic mode switching
• 10 fingers with thin glove (≤1-mm thickness)
• 2 fingers with thick glove (≤5-mm thickness)
❐ Face detection with grip suppression
❐ Finger nail tracking
❐ Passive stylus with palm rejection
❐ Hover finger sensing
❐ Large object rejection
❐ Automatic baseline tracking to environmental changes
❐ Low-power look-for-touch mode
❐ Field upgrades via bootloader
❐ Android™ and Windows Phone 8 driver support
❐ Cypress manufacturing test kit (MTK)
❐ Touchscreen sensor self-test and ID reporting
■ System performance (configuration dependent)
❐ Screen sizes up to 5.0-inch diagonal
• 4.8-mm sensor pitch, 16:9 aspect ratio
❐ Up to 36 sense pins
• 299 intersections (23 × 13)
❐ Reports up to 10 fingers
❐ Small finger support down to 4 mm
❐ Large finger support up to 30 mm
❐ Refresh rate up to 300 Hz; other rates configurable
❐ TX frequency up to 500 kHz
❐ Fast first-touch response (13 ms)
❐ Best-in-class charger noise immunity
• Immunity up to 60 peak-to-peak voltage (V
PP
)
• Immunity to AT&T Zero charger and Duracell chargers
■ Power (configuration dependent)
❐ 1.71- to 5.5-V digital and I/O supply
❐ 2.65- to 5.5-V analog supply
❐ 5.6-mW average power
❐ 4.5-μW typical deep-sleep power
■ Sensor and system design (configuration dependent)
❐ Supports a variety of touchscreen sensors and stackups
• Manhattan, diamond, and SLIM
®
patterns
• Sensor-on-lens (SOL)
• On-cell touch integrated display modules
• Plastic (PET) and glass sensor substrates
• LCD and AMOLED displays
❐ Single-layer flexible printed circuit (FPC) routing enabled by
flexible TX/RX configurations
■ Communication interface
❐ I
2
C slave at all standard bit rates
• 100 kbps, 400 kbps, 1 Mbps, and 3.4 Mbps
❐ SPI slave bit rates up to 10 Mbps
■ 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)
