Infineon Technologies CYAT817AZA98-5B002

Overview

CYAT817AZA98-5B002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 103 configurable sense pins (98 TX/RX + 5 TX-only), support for 10-finger multitouch, hover sensing up to 35 mm, and force touch with 0.1 N resolution. It delivers 250 Hz refresh rate, 300 kHz TX frequency, and operates across –40°C to 85°C for in-vehicle infotainment and digital cockpit displays.

For engineers reviewing the CYAT817AZA98-5B002 datasheet, CYAT817AZA98-5B002 pinout, CYAT817AZA98-5B002 application, or CYAT817AZA98-5B002 equivalent, key selection criteria include its 103-sense-pin TQFP package, CAN interface capability, dual-sense wet-finger tracking, glove support (≤5 mm), and low-power wake-on-touch (<50 µA) for automotive HMI systems.

Technical Context

This device implements a multi-phase TX architecture with up to 17-phase drive and integrated DSP per RX channel, enabling single-pass long-side scanning across 64 dedicated ADCs. Its noise-suppression stack includes Auto Armor (EMI emissions/immunity), dual-sense water rejection, and high-frequency TX hopping for robust operation in noisy automotive environments.

The controller supports split-screen and free-form shape recognition via runtime-configurable CAPSENSE™ firmware, with secondary I2C/SPI interfaces configurable as master/slave and optional CAN for safety-critical host communication. Force sensing uses five parallel 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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CYAT817AZA98-5BFBA, this part reduces BOM cost by excluding haptic/proximity peripherals while retaining core multitouch, CAN, and glove/wet-finger functionality; versus CYAT817AZS98-5B202, it adds critical force and hover sensing for advanced HMI without changing PCB layout.

Availability

CYAT817AZA98-5B002 is available at Aetrix Electronics and suitable for digital instrument clusters, in-vehicle infotainment systems, and head-up display control panels requiring stable component supply across automotive production lifecycles.

Supply support for CYAT817AZA98-5B002 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to the PSoC™ Automotive Multitouch generation 7XL product line, engineered specifically for AEC-Q100-compliant human-machine interfaces in digital cockpits, emphasizing noise resilience, glove/wet-finger operation, and functional safety-ready communication interfaces.

FAQ

Does CYAT817AZA98-5B002 support CAN FD or only classical CAN?

No, CYAT817AZA98-5B002 implements ISO 11898-2 compliant classical CAN only, with fixed 1 Mbps data rate and no CAN FD frame support. The secondary interface requires custom firmware to enable CAN operation, and it does not support flexible data-rate arbitration or extended payload lengths.

What is the maximum supported electrode pitch for this controller?

The device supports up to 5.3 mm electrode pitch in standard configurations, validated for 16:10 aspect ratio screens up to 15-inch diagonal. This pitch enables optimal signal-to-noise ratio with 20 V effective TX drive while maintaining compatibility with Manhattan and diamond sensor layouts.

Is the 103-pin count fixed, or can unused pins be repurposed as GPIOs?

All 103 sense pins are fully configurable as TX, RX, or GPIOs in firmware, with no hardware-fixed assignment. The 5 TX-only pins may be used as general-purpose outputs but lack RX capability; remaining pins support bidirectional CAPSENSE™ or digital I/O functions via register configuration.

How is water rejection implemented without additional external components?

Water rejection uses dual-sense technology-simultaneous self- and mutual-capacitance measurements-to distinguish conductive water films from intentional touch. No external electrodes or shielding layers are required; the algorithm runs autonomously in the integrated DSP with no host processor involvement.