mXT2952T2 2.3 maXTouch 2911-node Touchscreen Controller Product Brief Description The mXT2952T2 2.3 uses a unique charge-transfer acquisition engine to implement Microchips patented capacitive sensing method. Coupled with a state-of-the-art CPU, the entire touchscreen sensing solution can measure, classify and track a number of individual finger touches with a high degree of accuracy in the shortest response time. The mXT2952T2 2.3 allows for both mutual and self capacitance measurements, with the self capacitance measurements being used to augment the mutual capacitance measurements to produce reliable touch information. maXTouch Adaptive Sensing Touchscreen Touch Performance Technology Moisture/Water Compensation Up to 41 X (transmit) lines and 71 Y (receive) lines for - No false touch with condensation or water drop up use by touchscreen and keys. to 22 mm diameter A maximum of 2911 nodes can be allocated to the - One-finger tracking with condensation or water touchscreen drop up to 22 mm diameter Touchscreen size 21 inches (16:9 aspect ratio), Glove Support assuming a sensor electrode pitch of 6.5 mm. Other - Multiple-finger glove touches up to 1.5 mm sizes are possible with different electrode pitches and thickness (subject to stack-up design) appropriate sensor material - Single-finger glove touch up to 5 mm thickness Multiple touch support with up to 16 concurrent (subject to stack-up design) touches tracked in real time Mutual capacitance and self capacitance measurements supported for robust touch detection Keys Noise suppression technology to combat ambient, Up to 32 nodes can be allocated as mutual charger, and power-line noise capacitance sensor keys (subject to other - Up to 240 V between 1 Hz and 1 kHz sinusoidal PP configurations) waveform Adjacent Key Suppression (AKS) technology is - Up to 20 V between 1 kHz and 1 MHz PP supported for false key touch prevention sinusoidal waveform Touch Sensor Technology Stylus Support - Supports passive stylus with 1.5 mm contact Discrete/out-cell support including glass and PET film- diameter, subject to configuration, stack-up, and based sensors sensor design On-cell/touch-on display support including TFT, IPS Scan Speed and OLED - Up to 250 Hz reporting rate for one finger (subject Support for standard (for example, Diamond) and to configuration) proprietary sensor patterns (review of designs by Microchip or a Microchip-qualified touch sensor - Typical report rate for 16 touches 100 Hz module partner is recommended) (subject to configuration) - Initial touch latency <15 ms for first touch from idle Front Panel Material (subject to configuration) Works with PET or glass, including curved profiles - Configurable to allow for power and speed (configuration and stack-up to be approved by optimization Microchip or a Microchip-qualified touch sensor module partner) On-chip Gestures Glass 0.4 mm to 4.5 mm (dependent on screen size, Supports wake up/unlock gestures, including symbol touch size, configuration and stack-up) recognition Plastic 0.2 mm to 2.2 mm (dependent on screen size, touch size, configuration and stack-up) 2018 Microchip Technology Inc. Product Brief DS40002051A-page 1 MXT2952T2 2.3 Enhanced Algorithms Lens bending algorithms to remove display noise Touch suppression algorithms to remove unintentional large touches, such as palm Palm Recovery Algorithm for quick restoration to normal state Power Saving Programmable timeout for automatic transition from active to idle states Pipelined analog sensing detection and digital processing to optimize system power efficiency Application Interfaces 2 I C slave with support for Standard mode (up to 100 kHz), Fast mode (up to 400 kHz), Fast-mode Plus (up to 1 MHz), High-speed mode (up to 3.4 MHz) USB HID interface for Microsoft Windows 8.x and later versions 2 C interface for Microsoft Windows 8.x and later versions HID-I Interrupt to indicate when a message is available SPI Debug Interface to read the raw data for tuning and debugging purposes Power Supply Digital (Vdd) 3.3 V nominal Digital I/O (VddIO) 1.8 to 3.3 V nominal Analog (AVdd) 3.3 V nominal High voltage external X line drive (XVdd) up to 9.2 V Package 162-ball UFBGA 10 5 0.6 mm, 0.5 mm pitch Operating Temperature 40 C to +85C DS40002051A-page 2 Product Brief 2018 Microchip Technology Inc.