MICROCHIP ATMXT1066TD-NHUR001

The mXT1066TD 1.0 uses a unique charge-transfer acquisition engine to implement Microchip's 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 mXT1066TD 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.

• Up to 41 X (transmit) lines and 26 Y (receive) lines for use by a touchscreen
• A maximum of 1066 nodes can be allocated to the touch sensor
• Touchscreen size of 12.4 inches (16:10 aspect ratio), assuming a sensor electrode pitch of 6.5 mm. Other sizes are possible with different electrode pitches and appropriate sensor material
• Multiple touch support with up to 16 concurrent touches tracked in real time
• Dual-boot OS support for Microsoft Windows and Android
• Discrete/out-cell support including glass and PET film based sensors
• On-cel/touch-on display support including TFT, LCD (ITPS, IPS) and OLED
• Synchronization with display refresh timing capability
• Support for standard (for example, Diamond) and proprietary sensor patterns
• Works with PET or glass, including curved profiles
• Moisture/Water Compensation - No false touch with condensation or water drop up to 22 mm diameter - One-finger tracking with condensation or water drop up to 22 mm diameter
• Mutual capacitance and self capacitance measurements supported for robust touch detection
• P2P mutual capacitance measurements supported for extra sensitive multi-touch sensing
• Noise suppression technology to combat ambient, charger, and power-line noise - Up to 240 VPP between 1Hz and 1 kHz sinusoidal waveform - Up to 20 VPP between 1 kHz and 1 MHz sinusoidal waveform
• Stylus Support - Supports passive stylus with 1.5 mm contact diameter, subject to configuration, stack-up, and sensor design
• Scan Speed - Typical report rate for 10 touches ≥85 Hz (subject to configuration) - Initial touch latency <20 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
• 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
• Up to 60 bytes of user-defined data can be stored during production
• Programmable timeout for automatic transition from Active to Idle state
• Pipelined analog sensing detection and digital processing to optimize system power efficiency
• I²C 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)
• HID-I²C 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
• Digital (Vdd) 3.3V nominal
• Digital I/O (VddIO) 1.8V nominal to 3.3V nominal
• Analog (AVdd) 3.3V nominal
• High voltage internal X line drive (XVdd) 6.6V or 9.9V with internal voltage pump
• Operating Temperature -40℃ to +85℃