Infineon Technologies CYAT817AZS72-3B202

Overview

CYAT817AZS72-3B202 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, hover sensing up to 35 mm, and force touch capability. It delivers 250 Hz refresh rate, 300 kHz TX frequency, and operates across –40°C to 85°C for infotainment and digital cockpit displays.

For engineers reviewing the CYAT817AZS72-3B202 datasheet, CYAT817AZS72-3B202 pinout, CYAT817AZS72-3B202 application, or CYAT817AZS72-3B202 equivalent, key selection criteria include its TQFP-100 package, CAN interface readiness, low-power wake-on-touch (<50 µA), dual-sense water rejection, and glove/touch/fingernail tracking performance under EMI-prone automotive conditions.

Technical Context

This device implements a register-configurable CAPSENSE™ architecture with integrated DSP for real-time noise filtering, supporting multi-phase TX (up to 17 phases) and high-frequency TX hopping to suppress display and EMI interference. Its 64 dedicated RX channels each feature independent ADCs enabling single-pass long-side scanning.

The controller integrates a secondary safety communication interface (I2C/SPI master/slave configurable) and optional CAN physical layer support-requiring custom firmware enablement-and supports split-screen, free-form shape recognition, and runtime diagnostics for ASIL-B–aligned system integration.

Key Specifications

Pinout & Package

Package: 100-lead TQFP (14 × 14 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, lead-free, 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 CYAT817AZS72-3B002, this part adds slider and haptic capabilities without increasing pin count; versus CYAT817AZS72-3BFBA, it omits CAN and acoustic features-making it optimal for cost-sensitive, non-safety-critical infotainment touch systems needing hover and force touch.

Availability

CYAT817AZS72-3B202 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, and passenger entertainment panels requiring stable component supply, AEC-Q100 compliance, and production-ready touch performance.

Supply support for CYAT817AZS72-3B202 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 power management, automotive microcontrollers, and sensing solutions, with global R&D and manufacturing infrastructure.

This device belongs to the PSoC™ Automotive Multitouch Generation 7XL product line, engineered specifically for high-reliability, EMI-resilient capacitive touch interfaces in automotive cockpits and ADAS-adjacent displays.

FAQ

Does CYAT817AZS72-3B202 support CAN communication natively?

No. While the CYAT817AZS72-3B202 includes hardware pins and routing for CAN, the CAN interface requires custom firmware implementation and is not enabled by default. The part shares the same silicon die as variants like CYAT817AZS72-3BFBA, where CAN is activated via firmware configuration and qualification testing.

What is the maximum supported touchscreen size for this controller?

The CYAT817AZS72-3B202 supports screen sizes up to 15 inches diagonal with a 16:10 aspect ratio and 5.3 mm electrode pitch. This is validated for both Manhattan and diamond sensor layouts, and compatible with SOL, on-cell, hybrid in-cell, and SLIM stackups on LCD, AMOLED, and IPS displays.

How does the low-power wake-on-touch function achieve <50 µA current draw?

The controller uses a dedicated ultra-low-power analog front-end that remains active in Deep Sleep mode, sampling only critical RX channels at reduced resolution and frequency. Combined with automatic baseline tracking and optimized clock gating, it achieves typical 30 µW power consumption while maintaining sub-100 ms wake latency.

Is Android driver support included out-of-the-box?

Yes. Infineon provides a certified Android HAL (Hardware Abstraction Layer) driver for Android 10 through 14, including support for multi-finger gestures, hover events, force reporting, and runtime calibration. The driver integrates with standard Linux input subsystem and supports OTA field upgrades via the onboard bootloader.