ATMXT1067TD-ABSPIVAO

Overview

The ATMXT1067TD-ABSPIVAO is an automotive-grade capacitive touchscreen controller from Microchip Technology. It supports up to 1066 nodes and tracks 16 concurrent touches with a typical report rate of ≥85 Hz for multi-touch inputs. The device operates within a temperature range of –40°C to +105°C (Grade 2) and utilizes an SPI slave interface with speeds up to 8 MHz. Power requirements include nominal 3.3 V supplies for digital, I/O, and analog sections, alongside an internal 6.6 V pump for X-line drive. It is housed in a 128-lead TQFP package.

Feature Summary

• AEC-Q100 qualified and developed using Automotive SPICE Level 3 certified processes.
• Supports mutual and self-capacitance measurements with moisture/water compensation.
• Includes noise suppression technology compliant with CISPR 25 standards.
• Features lens bending algorithms and palm recovery for enhanced touch accuracy.

Applications

• Automotive infotainment systems requiring high reliability.
• In-vehicle displays supporting TFT, IPS, and OLED technologies.
• Applications utilizing on-cell or touch-on display integration.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product identification system. Confirm that the 'AB' designation corresponds to the required Grade 2 operating temperature range of –40°C to +105°C. Ensure the SPI variant matches the host processor's communication interface requirements before finalizing procurement.

Selection Notes

Select this component when an AEC-Q100 qualified controller is necessary for automotive environments. The AB suffix indicates suitability for higher temperature ranges compared to the AT grade. Consider the 128-lead TQFP package dimensions and the requirement for an external voltage pump connection if the internal pump is not utilized for the XVdd supply.

Part Context

This part belongs to the mXT1067TD-Ax SPI family, which implements Microchip’s patented capacitive sensing method. The device integrates a state-of-the-art CPU to classify and track finger touches with low latency. It is designed to work with discrete, on-cell, or touch-on sensor patterns made of glass or PET film.

Replacement Considerations

The ATMXT1067TD-ATSPIVAO serves as a functional alternative with a lower operating temperature range of –40°C to +85°C. Both parts share identical pinouts and firmware compatibility but differ in thermal qualification grades.