Infineon Technologies CYAT817AZS61-3A202

Overview

CYAT817AZS61-3A202 from Infineon is an AEC-Q100 qualified automotive multitouch capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 61 configurable sense pins, support for up to 10 fingers, hover sensing up to 35 mm, and low-power wake-on-touch screen functionality. It delivers 30 mW average power consumption, operates across –40°C to 85°C, and integrates CAPSENSE™ button sensing with water rejection and glove support (≤1 mm) for in-vehicle infotainment displays.

For engineers reviewing the CYAT817AZS61-3A202 datasheet, CYAT817AZS61-3A202 pinout, CYAT817AZS61-3A202 application, or CYAT817AZS61-3A202 equivalent, this device serves as a production-ready, register-configurable touch controller optimized for 10-finger automotive HMI with dual-sense wet-finger tracking, I²C/SPI host interface, and CAN secondary safety channel support.

Technical Context

This controller implements a multi-phase TX architecture with up to 300 kHz TX frequency and high-order phase modulation to achieve SNR enhancement-enabled by effective 20 V drive using 17-phase TX and 5 V VCCTX. Its integrated DSP performs real-time noise filtering and single-pass long-side scanning via 64 dedicated RX ADC channels.

The device supports split-screen operation and free-form shape recognition through runtime-configurable sensor mapping, while auto armor technology dynamically adjusts EMI immunity and emissions profiles. Force touch capability uses five dedicated RX channels for parallel scan at up to 100 Hz refresh rate with 0.1 N resolution over 0.5–10 N range.

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 CYAT817AZS61-3A202, the -3A002 reduces feature set for cost-sensitive entry-tier HMIs, while the -3B202 increases pin count and adds force/slide functions-requiring PCB layout revision but enabling richer interaction on larger displays.

Availability

CYAT817AZS61-3A202 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 long-term lifecycle support.

Supply support for CYAT817AZS61-3A202 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.

CYAT817X belongs to Infineon's PSoC™ Automotive Multitouch Generation 7XL product line, engineered specifically for robust, high-SNR capacitive touch control in harsh automotive environments with EMI, temperature extremes, and condensation challenges.

FAQ

Does CYAT817AZS61-3A202 support CAN communication out-of-the-box?

No. The CAN interface is implemented as a secondary SCB (Serial Communication Block) and requires custom firmware to enable master/slave operation. Hardware pins (CANH/CANL) are present on the 100LD TQFP package, but default boot firmware does not activate CAN; Infineon provides HAL drivers and example projects for integration.

What is the maximum supported touchscreen size for this controller?

The CYAT817AZS61-3A202 supports screens up to 15-inch diagonal with 16:10 aspect ratio and 5.3 mm electrode pitch. Its 61 sense pins allow configurations such as 12×12 grid (144 nodes) or asymmetric layouts optimized for portrait-oriented center consoles or landscape dashboards.

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

Deep Sleep mode disables the CPU, DSP, and most analog blocks while retaining only the dedicated wake-up comparator circuitry and minimal oscillator. The WAKE# pin asserts on valid capacitive delta detection, drawing just 30 µW typical-verified across –40°C to 85°C per AEC-Q100 thermal cycling.

Is Android driver support included with this part number?

Yes. Infineon provides certified Android HAL drivers and kernel modules compatible with Android 10–13, including support for multi-finger gestures, hover events, and force touch reporting via standard Input Protocol. Integration requires platform-specific bring-up using Infineon's MTK (Manufacturing Test Kit) and Android BSP package.