Infineon Technologies CYAT817AZA98-42002

Overview

CYAT817AZA98-42002 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), 10-finger tracking, and support for hover (up to 35 mm), force touch (0.1 N resolution), and wet/finger-glove operation on 15-inch displays. It delivers 250 Hz refresh rate, 300 kHz TX frequency, and 30 mW average power in automotive-A temperature range (–40°C to 85°C).

For engineers reviewing the CYAT817AZA98-42002 datasheet, CYAT817AZA98-42002 pinout, CYAT817AZA98-42002 application, or CYAT817AZA98-42002 equivalent, key selection criteria include its 100LD TQFP package, CAN interface capability, low-power wake-on-touch (< 50 µA), dual-sense water rejection, and split-screen/free-form shape support for infotainment and digital cockpit systems.

Technical Context

This device implements a multi-phase TX architecture with up to 17 phases and 5 V VCCTX supply, enabling effective 20 V drive for enhanced SNR. Its integrated DSP performs real-time noise filtering and single-pass long-side scanning using 64 dedicated RX-channel ADCs.

The controller supports dual-sense capability for simultaneous water rejection and wet-finger tracking, plus automatic baseline tracking and high-frequency TX hopping for EMI resilience. Force sensing uses five dedicated RX channels operating at up to 100 Hz with 100 μm/10 N displacement sensitivity and rigid-body mechanical integration.

Key Specifications

Pinout & Package

Package: 100-lead TQFP, 14 mm × 14 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 multitouch controller applications.

Compared with CYAT817AZA98-5BFBA and CYAT817AZS98-42002, the CYAT817AZA98-42002 provides identical 103-pin sensing, CAN interface, and AEC-Q100 compliance at lower cost and thermal rating-ideal for cost-sensitive, cabin-mounted infotainment displays operating within –40°C to +85°C.

Availability

CYAT817AZA98-42002 is available at Aetrix Electronics and suitable for digital instrument clusters, center console infotainment systems, HUD overlays, and passenger seat control panels requiring stable component supply across automotive production lifecycles.

Supply support for CYAT817AZA98-42002 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to the PSoC™ Automotive Multitouch generation 7XL product line, designed specifically for high-noise, safety-critical automotive human-machine interfaces requiring robust capacitive sensing, CAN integration, and AEC-Q100 compliance.

FAQ

Does CYAT817AZA98-42002 support CAN communication out of the box?

No. The CAN interface requires custom firmware implementation per Infineon's secondary SCB configuration guidelines. Hardware pins (CANH/CANL) are present and electrically compatible with ISO 11898-2, but the CAN protocol stack and driver must be developed or licensed separately. Standard operation uses I²C or SPI as primary host interface.

What is the maximum supported touchscreen size and electrode pitch?

The CYAT817AZA98-42002 supports screens up to 15-inch diagonal with a minimum electrode pitch of 5.3 mm. This enables high-resolution sensing on large-format displays while maintaining compatibility with Manhattan and diamond sensor layouts, SOL, and hybrid in-cell stackups.

Is hover sensing functional with thick gloves or wet conditions?

No. Hover sensing operates only with bare fingers or thin gloves (≤1 mm); it is disabled during wet-finger or thick-glove modes. The device automatically switches sensing modes based on environmental detection-hover is mutually exclusive with water rejection and ≥5 mm glove operation.

How does the 5 V VCCTX supply enable 20 V effective drive?

Using 17-phase multi-phase TX modulation with 5 V VCCTX, the device synthesizes constructive voltage叠加 across electrodes, achieving up to 20 V peak-to-peak effective drive. This increases signal amplitude relative to noise floor without exceeding absolute voltage ratings, directly improving SNR in EMI-heavy automotive environments.