Infineon Technologies CYAT817AZS72-22002

Overview

CYAT817AZS72-22002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 72 configurable sense pins, support for up to 10-finger multitouch, and operation across –40°C to 85°C. It delivers 250 Hz refresh rate, 300 kHz TX frequency, and 30 mW average power consumption in automotive infotainment displays.

For engineers reviewing the CYAT817AZS72-22002 datasheet, CYAT817AZS72-22002 pinout, CYAT817AZS72-22002 application, or CYAT817AZS72-22002 equivalent, this device is selected for cost-optimized touch systems requiring CAN interface support, glove/touch/water rejection, and no hover/force/slider/CAPSENSE™ button features - as confirmed by its ordering code suffix "22002" and feature matrix in Infineon's Datasheet Summary 002-35928 Rev. *B.

Technical Context

This device belongs to Infineon's PSoC™ Automotive Multitouch generation 7XL family and implements dual-sense architecture for wet-finger tracking and water rejection. Its 72 sense pins include 67 fully configurable TX/RX channels plus 5 TX-only pins, enabling up to 2500 sensor intersections on 15-inch diagonal displays with 16:10 aspect ratio.

The controller integrates a dedicated DSP for real-time noise filtering, supports high-frequency TX hopping (up to 300 kHz), and uses multi-phase TX drive to achieve effective 20 V output with 5 V VCCTX supply - all while maintaining <50 µA low-power wake-up button current and Deep Sleep power of 30 µW.

Key Specifications

Pinout & Package

Package: 128-lead TQFP (14 mm × 20 mm × 1.4 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive touchscreen controller applications.

Compared with CYAT817AZS72-3B202 and CYAT817AZS72-32002, the CYAT817AZS72-22002 provides identical core sensing performance and CAN interface but excludes hover, force, slider, and CAPSENSE™ button functions - making it optimal for cost-sensitive, full-display-only automotive touch applications where those features are unused.

Availability

CYAT817AZS72-22002 is available at Aetrix Electronics and suitable for automotive infotainment displays, center console touchscreens, and instrument cluster overlays requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CYAT817AZS72-22002 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in automotive, power management, and security solutions, with global manufacturing and R&D infrastructure.

This device belongs to the PSoC™ Automotive Multitouch generation 7XL product line, designed specifically for AEC-Q100-compliant capacitive touch systems in vehicles - emphasizing EMI resilience, glove/water operation, and functional safety-ready diagnostics.

FAQ

Does CYAT817AZS72-22002 support CAN FD or only classical CAN?

No, CYAT817AZS72-22002 implements only classical CAN (ISO 11898-2) with data rates up to 1 Mbps. It does not support CAN FD framing, arbitration bit rate extension, or flexible data phase - as confirmed by Infineon's Datasheet Summary 002-35928 Rev. *B, which specifies "CAN interface" without FD qualification and lists no FD-specific registers or timing parameters.

What is the maximum supported touchscreen size for CYAT817AZS72-22002?

The device supports touchscreen sizes up to 15-inch diagonal, as verified in the Datasheet Summary under "System performance" - enabled by its 72 sense pins, 2500 intersection capacity, and 16:10 aspect ratio optimization. Physical size depends on electrode pitch (5.3 mm typical) and layout; larger displays require reduced resolution or interpolation.

Is external memory required for firmware storage on CYAT817AZS72-22002?

No, CYAT817AZS72-22002 integrates flash memory for firmware storage and includes a secure bootloader that supports field upgrades over I²C or SPI. External memory is optional only for extended log storage or custom calibration tables beyond internal allocation.

Can CYAT817AZS72-22002 operate with a 3.3 V VCCTX supply instead of 5 V?

No - the 20 V effective TX drive requires 5 V VCCTX supply, as explicitly stated in Note 1 of the Datasheet Summary: "Effective voltage when using 17 multi-phase TX and 5 V VCCTX supply." Using 3.3 V VCCTX reduces effective drive voltage and degrades SNR, compromising water rejection and glove performance.