mXT2952TD 1.0 maXTouch 2911-node Touchscreen Controller Product Brief Description The mXT2952TD 1.0 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 mXT2952TD 1.0 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 Front Panel Material Technology Works with PET or glass, including curved profiles (configuration and stack-up to be approved by Up to 41 X (transmit) lines and 71 Y (receive) lines for Microchip or a Microchip-qualified touch sensor use by touchscreen and keys module partner) Touchscreen size 21 inches (16:9 aspect ratio), 10 mm glass (or 5 mm PMMA) with bare finger assuming a sensor electrode pitch of 6.5 mm. Other (dependent on screen size, touch size, configuration sizes are possible with different electrode pitches and and stack-up) appropriate sensor material 6 mm glass (or 3 mm PMMA) with multi-finger 5 mm A maximum of 2911 X/Y nodes can be allocated to the glove (2.7 mm PMMA equivalent) (dependent on touch sensor screen size, touch size, configuration and stack-up) Multiple touch support with up to 16 concurrent touches tracked in real time Touch Performance HID Mouse mode reporting of single touches to the Moisture/Water Compensation host, subject to configuration - No false touch with condensation or water drop Dual-boot OS support for Microsoft Windows and up to 22 mm diameter Android - One-finger tracking with condensation or water Keys drop up to 22 mm diameter Mutual capacitance and self capacitance Up to 32 nodes can be allocated as mutual measurements supported for robust touch detection capacitance sensor keys (subject to other configurations) P2P mutual capacitance measurements supported for extra sensitive multi-touch sensing Adjacent Key Suppression (AKS) technology is supported for false key touch prevention Noise suppression technology to combat ambient, charger, and power-line noise Touch Sensor Technology - Up to 240 V between 1 Hz and 1 kHz sinusoidal PP waveform Discrete/out-cell support including glass and PET film- - Up to 20 V between 1 kHz and 1 MHz based sensors PP sinusoidal waveform On-cell/touch-on display support including TFT, IPS Stylus Support and OLED - Supports passive stylus with 1.5 mm contact Synchronization with display refresh timing capability diameter, subject to configuration, stack-up, and Support for standard (for example, Diamond) and sensor design proprietary sensor patterns (review of designs by Microchip or a Microchip-qualified touch sensor Burst Frequency module partner is recommended) - Flexible and dynamic Tx burst frequency selection to reduce EMC disturbance - Configurable Tx waveform shaping to reduce emissions 2019 Microchip Technology Inc. Product Brief DS40002132A-page 1 MXT2952TD 1.0 Scan Speed - Up to 112 Hz report rate for one finger (subject to configuration) - Typical report rate for 10 touches 100 Hz (subject to configuration) - Initial touch latency <14 ms for first touch from idle (subject to configuration) - Configurable to allow for power and speed optimization Touch panel failure detection - Automatic touch sensor diagnostics during run time to support the implementation of safety critical features - Diagnostics reported using dedicated output pin or by standard Object Protocol messages - Configurable test limits On-chip Gestures Reports one-touch and two-touch gestures Supports wake up/unlock gestures, including symbol recognition 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 state 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 HID-I C interface for Microsoft Windows 8.x and later versions Interrupt to indicate when a message is available Additional SPI Debug Interface to read the raw data for tuning and debugging purposes Power Supply Digital (Vdd) 3.3V nominal 2 Digital I/O (VddIO) 1.8V to 3.3V (I C mode), 3.3V (USB mode) Analog (AVdd) 3.3V nominal High voltage external X line drive (XVdd) up to 9.2V Package 162-ball UFBGA 10 5 0.6 mm, 0.5 mm pitch Operating Temperature 40 C to +85C DS40002132A-page 2 Product Brief 2019 Microchip Technology Inc.