Infineon Technologies CYAT817AZS72-33002

Overview

CYAT817AZS72-33002 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, and force touch sensing 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 displays.

For engineers reviewing the CYAT817AZS72-33002 datasheet, CYAT817AZS72-33002 pinout, CYAT817AZS72-33002 application, or CYAT817AZS72-33002 equivalent, this device is selected for cost-optimized automotive touch systems requiring hover-free operation, glove support (≤1 mm), and low-power wake-on-touch (<50 µA) without force-sensing or slider functionality.

Technical Context

This controller implements CAPSENSE™ technology with dual-sense capability for water rejection and wet-finger tracking, and uses high-order multi-phase TX (up to 17 phases) with 5 V VCCTX to achieve effective 20 V drive for improved SNR. Its integrated DSP enables single-pass long-side scanning via 64 dedicated RX ADCs.

The device supports I2C (1 Mbps) and SPI (8 Mbps) host interfaces, plus optional cryptographic engine and secondary safety interface (I2C/SPI master/slave). CAN interface is enabled via custom firmware and used for safety-critical data transport in ASIL-B–compliant systems.

Key Specifications

Pinout & Package

100LD TQFP package (14 mm × 14 mm, 0.5 mm pitch, 1.4 mm height) with exposed thermal pad. Pin functions include 72 configurable analog sense I/Os (TX/RX), 5 dedicated TX-only pins, 3.3 V/1.8 V supply rails, I2C/SPI control, reset, interrupt, and CAN_TX/CAN_RX (enabled in firmware).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CYAT817AZS72-3B202 and CYAT817AZS72-3BFBA, the CYAT817AZS72-33002 provides optimized BOM cost by omitting force, slider, haptic, and crypto features while retaining core AEC-Q100 multitouch, glove/water rejection, and ultra-low wake-up power - ideal for entry-level automotive displays.

Availability

CYAT817AZS72-33002 is available at Aetrix Electronics and suitable for automotive infotainment displays, digital instrument clusters, and rear-seat entertainment systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for CYAT817AZS72-33002 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, engineered specifically for robust, noise-immune capacitive touch in harsh automotive environments - prioritizing EMI resilience, glove/water operation, and functional safety readiness.

FAQ

Does CYAT817AZS72-33002 support CAN communication out of the box?

No. The CAN interface requires custom firmware implementation and is not pre-enabled in the factory image. Hardware pins CAN_TX and CAN_RX are present on the 100LD TQFP package, but software activation and protocol stack integration must be performed by the customer using Infineon's PSoC Creator or ModusToolbox tools.

What is the maximum supported touchscreen size for this controller?

The CYAT817AZS72-33002 supports screens up to 15 inches diagonal with 16:10 aspect ratio and 5.3 mm electrode pitch. This is achieved using its 72 configurable sense pins and internal DSP-assisted scanning architecture, enabling full coverage without external multiplexers.

Is Android driver support available for CYAT817AZS72-33002?

Yes. Infineon provides a certified Android HAL driver compatible with Android 10 through 14, supporting standard touch events, gesture reporting, and power management hooks. Driver integration requires platform-specific kernel patches and vendor interface definitions aligned with the SoC host processor.

How does the low-power wake-on-touch mode function without compromising responsiveness?

In Deep Sleep mode, the device monitors dedicated wake-up buttons at <50 µA quiescent current using hardware-accelerated edge detection. Upon valid capacitive event, it wakes the full CAPSENSE™ subsystem within 15 ms and reports touch coordinates within 30 ms - meeting automotive UI latency requirements while minimizing standby power.