Infineon Technologies CYAT817AZA98-5B202

Overview

CYAT817AZA98-5B202 from Infineon is an AEC-Q100 qualified automotive multitouch capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 103 configurable sense pins (98 TX/RX + 5 TX-only), 10-finger tracking, hover sensing up to 35 mm, and force touch capability with 0.1 N resolution. It supports wet-finger and glove operation (≤5 mm), operates across –40°C to 85°C, and delivers 30 mW average power in automotive infotainment and digital cockpit displays.

For engineers reviewing the CYAT817AZA98-5B202 datasheet, CYAT817AZA98-5B202 pinout, CYAT817AZA98-5B202 application, or CYAT817AZA98-5B202 equivalent, key selection criteria include its 103-sense-pin TQFP package, CAN interface support, low-power wake-on-touch (<50 µA), dual-sense water rejection, and split-screen/free-form shape compatibility for next-generation automotive HMI systems.

Technical Context

This device implements a dedicated CAPSENSE™ engine with integrated DSP for single-pass long-side scanning using 64 independent RX ADCs, enabling 250 Hz refresh rates and high-frequency TX hopping (up to 300 kHz) for EMI resilience. Its multi-phase TX architecture delivers effective 20 V drive at 5 V VCCTX for enhanced SNR.

The controller integrates dual communication interfaces: primary I²C/SPI for touch data and optional secondary I²C/SPI or CAN (firmware-enabled) for safety-critical host coordination. Force sensing uses five dedicated RX channels with rigid-body mechanics and 100 μm/10 N displacement sensitivity.

Key Specifications

Pinout & Package

Package: 128-lead TQFP, 14 mm × 20 mm × 1.4 mm body, 0.5 mm pitch, RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CYAT817AZA98-5BFBA, this part trades haptic/proximity/gesture features for lower system cost and simpler firmware; versus CYAT817AZS98-5B202, it adds CAN for safety-channel redundancy and secondary SCB master flexibility-critical for OEM cockpit domain controllers.

Availability

CYAT817AZA98-5B202 is available at Aetrix Electronics and suitable for automotive digital instrument clusters, center console infotainment systems, and rear seat entertainment modules requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.

Supply support for CYAT817AZA98-5B202 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, designed specifically for high-reliability, noise-resilient touch interfaces in automotive cockpits-emphasizing EMI robustness, glove/water operation, and functional safety readiness.

FAQ

Does CYAT817AZA98-5B202 support CAN communication out of the box?

No. CAN interface requires custom firmware enablement via Infineon's secondary SCB configuration. The hardware pins (CANH/CANL) are present and electrically validated, but the CAN protocol stack and initialization sequence must be implemented in application firmware. This design allows OEMs to retain control over safety-critical communication layers while leveraging Infineon's physical layer compliance.

What is the maximum supported touchscreen size and electrode pitch?

The device supports screens up to 15-inch diagonal with a minimum electrode pitch of 5.3 mm. This specification is validated for Manhattan and diamond sensor layouts on PET, glass, and on-cell display modules. Larger sizes require interpolation or reduced finger count; tighter pitches risk mutual capacitance crosstalk unless paired with advanced noise-suppression firmware settings.

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

It uses a dedicated ultra-low-power analog comparator circuit that monitors differential TX/RX signals continuously in Deep Sleep mode, bypassing the main Cortex® CPU and digital logic. Only the WAKE pin assertion triggers full wake-up, preserving battery life in always-on automotive systems where display backlight may be off but touch responsiveness is required.

Is Android driver support included with CYAT817AZA98-5B202?

Yes. Infineon provides a certified Android HAL (Hardware Abstraction Layer) driver compatible with Android 10 through 14, including support for multi-touch gestures, force reporting, and split-screen coordinate mapping. The driver integrates with standard Linux input subsystem and requires no kernel modifications-only board-specific device tree configuration for I²C/SPI address and interrupt routing.