DESCRIPTION

· The CYTMA445A is a TrueTouch® Multi-Touch All-Points Touchscreen Controller by Cypress Semiconductor Corporation, designed for advanced capacitive touchscreen applications.

FEATURES

· 32-bit ARM® Cortex™ CPU for efficient processing.
· Register-configurable with noise-suppression technologies for enhanced performance.
· DualSense™ technology for water rejection and wet-finger tracking.
· Supports multi-touch glove with automatic mode switching.
· Fingernail tracking, grip suppression, and large object rejection.
· Automatic baseline tracking to adapt to environmental changes.
· Low-power look-for-touch mode and field upgrades via bootloader.
· Supports Android™ drivers and includes Cypress Manufacturing Test Kit (MTK).
· Touchscreen sensor self-test and Panel ID reporting capabilities.

APPLICATIONS

· Suitable for screen sizes up to 5.0-inch diagonal with a 16:9 aspect ratio.
· Supports up to 36 sense pins and 308 intersections.
· Reports up to ten fingers with support for small (4 mm) and large (30 mm) fingers.
· Refresh rate up to 300 Hz and TX frequency up to 500 kHz.
· Best-in-class charger noise immunity up to 35-V peak-to-peak.
· Power-efficient with 4-mW average power and 5.7-μW deep-sleep power.
· Supports various touchscreen sensors and stackups including Manhattan, diamond, SLIM®, and Totem-pole patterns.
· Compatible with LCD, AMOLED, and IPS displays.
· Single-layer flexible printed circuit (FPC) routing enabled by flexible TX/RX configurations.
· Communication interfaces include I2C slave at 100 and 400 kbps, and SPI slave bit rates up to 8 Mbps.
· Available in 44-pin and 48-pin QFN package options.