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Infineon Technologies CYAT817AZS72-3BFBA
- Part No.:
- CYAT817AZS72-3BFBA
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 100-LQFP
- Datasheet:
-
CYAT817AZS72-3BFBA.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,021
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Product details
Overview
CYAT817AZS72-3BFBA from Infineon Technologies is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 72 configurable sense pins, 10-finger multitouch support, hover sensing up to 35 mm, force touch (0.5–10 N), and integrated CAPSENSE™ button/slider/haptic/acoustic gesture sensing. It enables robust human-machine interface (HMI) in infotainment displays and digital instrument clusters.
For engineers reviewing the CYAT817AZS72-3BFBA datasheet, CYAT817AZS72-3BFBA pinout, CYAT817AZS72-3BFBA application, or CYAT817AZS72-3BFBA equivalent, key selection criteria include its 100LD TQFP package, CAN interface support, dual-sense water rejection, glove operation (≤5 mm), and low-power wake-on-touch (<50 µA) capability for automotive cockpit systems.
Technical Context
This device implements a multi-phase TX architecture with up to 300 kHz TX frequency and high-order phase modulation to achieve effective 20 V drive (at 5 V VCCTX), delivering enhanced SNR for noisy automotive environments. Its integrated DSP performs real-time noise filtering, baseline tracking, and parallel touch/force scanning using five dedicated RX channels.
The controller supports split-screen operation, free-form shape recognition, and runtime diagnostics while enabling field upgrades via bootloader. Secondary communication includes configurable I2C/SPI master/slave and optional CAN interface-requiring custom firmware activation per Infineon's documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 72 fully configurable TX/RX pins; enables large-format touchscreens up to 15-inch diagonal with 16:10 aspect ratio. |
| Finger Tracking | Simultaneous 10-finger reporting with small-finger support down to 5 mm diameter and fingernail tracking. |
| Hover Range | Up to 35 mm detection distance-supports proximity-aware UI transitions without physical contact. |
| Force Sensing | 0.5–10 N range with 0.1 N resolution; uses 5 dedicated RX channels for parallel scan at ≤100 Hz refresh. |
| Power Consumption | 30 mW average active power; 30 µW Deep Sleep current-enables always-on wake-on-touch functionality. |
| Operating Temp | Automotive-A grade: –40°C to +85°C ambient-qualified for center-stack and display module integration. |
| Interface Options | I²C slave (100/400 kbps, 1 Mbps), SPI slave (up to 8 Mbps), and optional CAN interface for safety-critical HMI data routing. |
Pinout & Package
Package: 100-lead TQFP (14 × 14 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O Supply | 1.71–1.95 V or 3.0–5.5 V logic supply; powers GPIOs and digital peripherals independently of analog domain. |
| VDDA | Analog Supply | 3.0–5.5 V analog rail for CAPSENSE™ sensing circuitry and ADCs-critical for SNR stability. |
| VCCTX | Capacitive TX Drive Voltage | 5 V supply enabling 20 V effective multi-phase TX drive-key to wet-finger and glove performance. |
| SCL/SDA | I²C Interface | Standard-mode/fast-mode/high-speed I²C slave interface for host MCU communication and configuration. |
| MOSI/MISO/SCLK/SS | SPI Interface | Full-duplex SPI slave supporting up to 8 Mbps-used for high-throughput touch data streaming. |
| CAN_H/CAN_L | CAN Physical Layer | Dedicated differential CAN transceiver pins-requires external CAN PHY and custom firmware enablement. |
| WAKE_N | Wake-on-Touch Input | Active-low interrupt output signaling valid touch event during Deep Sleep-<50 µA quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Auto Armor Technology | Integrated EMI suppression that simultaneously improves emissions and immunity-reduces need for external shielding. |
| Dual-Sense Water Rejection | Simultaneous TX/RX channel operation enables reliable wet-finger tracking and false-trigger rejection on damp surfaces. |
| Glove Mode Switching | Automatic transition between thin-glove (≤1 mm) and thick-glove (≤5 mm) modes-no host intervention required. |
| Runtime Diagnostics | On-the-fly sensor self-test and baseline drift monitoring-ensures functional safety compliance without halting operation. |
| Manufacturing Test Kit (MTK) | Factory-programmable test mode supporting production-line calibration and yield verification of all sensing channels. |
Applications
| Digital Instrument Cluster | Center-Stack Infotainment Display |
|---|---|
|
Use Scenario: Driver interaction with speedometer, navigation, and vehicle settings via glass-covered TFT display. IC Role / Device Role / Timing Role: Primary touch controller managing 10-finger gestures, force-based menu selection, and wake-on-touch for ignition-state awareness. Use Value: Supports 15-inch displays with 5.3 mm electrode pitch and maintains responsiveness under glove use and condensation. |
Use Scenario: Passenger-side multimedia control with slider-based volume adjustment and haptic feedback. IC Role / Device Role / Timing Role: Multimodal HMI processor handling CAPSENSE™ buttons, sliders, acoustic gestures, and haptic actuator timing synchronization. Use Value: Enables free-form shape recognition and split-screen operation-allowing simultaneous driver/passenger UI zones. |
| Head-Up Display (HUD) Touch Overlay | Automotive Rear-Seat Entertainment |
|
Use Scenario: Touch-enabled HUD projection surface requiring low-latency hover detection and minimal parallax error. IC Role / Device Role / Timing Role: High-refresh-rate (250 Hz) touch engine with sub-100 µm displacement resolution for precise hover-to-touch transition. Use Value: Achieves 35 mm hover range and automatic baseline tracking-compensating for thermal drift in cabin temperature gradients. |
Use Scenario: Dual-screen rear-seat system with independent touch zones, child-lock mode, and parental controls. IC Role / Device Role / Timing Role: Dual-interface controller using I²C for main SoC and CAN for vehicle network status sync (e.g., seatbelt, door lock). Use Value: Leverages secondary CAN interface and cryptographic engine for secure over-the-air (OTA) updates and tamper-resistant firmware validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive multitouch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT817AZS72-3B202 | Omits haptic/acoustic gesture and proximity sensing; retains force touch, slider, and CAPSENSE™ buttons. | Limited to basic gesture HMI without audio feedback or IR proximity wake-up. | Select when cost-sensitive designs exclude haptic feedback and proximity-triggered UI activation. |
| CYAT817AZS77-5BFBA | 128LD TQFP package; adds 5 extra sense pins (77 total) and supports larger 15-inch+ displays with higher intersection density. | Targeted at premium infotainment systems requiring extended sensor coverage and finer electrode pitch. | Choose for next-generation displays needing >72 sense pins and enhanced SNR margin via additional RX channels. |
Compared with CYAT817AZS72-3B202, this part adds haptic/acoustic gesture and proximity sensing; compared with CYAT817AZS77-5BFBA, it trades 5 sense pins and 128LD footprint for lower BOM cost and PCB area in mid-tier automotive displays.
Availability
CYAT817AZS72-3BFBA is available at Aetrix Electronics and suitable for digital instrument clusters, center-stack infotainment displays, head-up display overlays, and rear-seat entertainment systems requiring stable component supply across automotive production lifecycles.
Supply support for CYAT817AZS72-3BFBA 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 AEC-Q100-compliant, high-reliability touch HMI in automotive cockpits and ADAS-adjacent interfaces.
FAQ
Does CYAT817AZS72-3BFBA support CAN interface out-of-the-box?
No. The CAN interface requires custom firmware activation and an external CAN transceiver. The device provides dedicated CAN_H/CAN_L pins but does not include an integrated PHY; implementation must follow Infineon's AN229188 guidelines and use validated transceivers such as TJA1044T/3.
What is the maximum supported touchscreen size and electrode pitch?
The device supports screens up to 15 inches diagonal with a minimum electrode pitch of 5.3 mm. This is enabled by its 72 sense pins, 10300+ possible intersections, and single-pass long-side scanning using 64 dedicated RX ADCs-optimized for 16:10 aspect ratio displays.
How does the dual-sense capability improve water rejection performance?
Dual-sense uses simultaneous TX and RX channel operation to distinguish true finger capacitance from water film artifacts. It measures both mutual and self-capacitance in parallel, allowing real-time rejection of false touches caused by droplets or condensation while maintaining wet-finger tracking accuracy.
Is Android driver support included with CYAT817AZS72-3BFBA?
Yes. Infineon provides certified Android drivers compatible with Android 10 through 14, including HAL integration for gesture reporting, force mapping, and haptic feedback control. Drivers are distributed via MyICP and require license registration for commercial deployment.
CYAT817AZS72-3BFBA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- -
- Interface:
- I2C, SPI
- Voltage Reference:
- -
- Voltage - Supply:
- 1.71V ~ 1.95V, 3V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 100-TQFP (14x14)
CYAT817AZS72-3BFBA FAQ
1.How can I place an order for CYAT817AZS72-3BFBA through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT817AZS72-3BFBA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CYAT817AZS72-3BFBA reliable?
The price and inventory of CYAT817AZS72-3BFBA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT817AZS72-3BFBA is usually 5 days.
3.What payment methods are accepted for CYAT817AZS72-3BFBA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT817AZS72-3BFBA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT817AZS72-3BFBA?
CYAT817AZS72-3BFBA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT817AZS72-3BFBA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CYAT817AZS72-3BFBA?
For technical support, including CYAT817AZS72-3BFBA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT817AZS72-3BFBA requirements.
6.How does Aetrix verify that CYAT817AZS72-3BFBA is sourced from the original manufacturer or authorized distributors?
All CYAT817AZS72-3BFBA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CYAT817AZS72-3BFBA meets industry standards.
7.What is the process for return or replacement of CYAT817AZS72-3BFBA?
All CYAT817AZS72-3BFBA units undergo pre-shipment inspection (PSI). If there is an issue with CYAT817AZS72-3BFBA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CYAT817AZS72-3BFBA part is unused and in its original packaging.
Return procedure for CYAT817AZS72-3BFBA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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