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Infineon Technologies CYAT817AZS77-520DA
- Part No.:
- CYAT817AZS77-520DA
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT817AZS77-520DA.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:4,223
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Product details
Overview
CYAT817AZS77-520DA from Infineon Technologies is an AEC-Q100 qualified automotive multitouch capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 77 configurable sense pins, support for up to ten fingers, and integrated CAPSENSE™ slider sensing with acoustic haptic feedback. It operates across –40°C to 85°C, delivers 30 mW average power, and enables wake-on-touch screen functionality with <50 µA low-power wake-up button current.
For engineers reviewing the CYAT817AZS77-520DA datasheet, CYAT817AZS77-520DA pinout, CYAT817AZS77-520DA application, or CYAT817AZS77-520DA equivalent, key selection criteria include its 128LD TQFP package, dual-sense water rejection capability, glove support (up to 1 mm), and secondary CAN interface for safety-critical automotive HMI systems.
Technical Context
This device implements a multi-phase TX architecture with up to 300 kHz TX frequency and high-order TX capability to achieve effective 20 V drive for enhanced SNR. Its integrated DSP performs single-pass long-side scanning using 64 dedicated RX ADC channels, enabling 250 Hz refresh rate and real-time noise filtering via frequency hopping.
The controller supports split-screen operation and free-form shape recognition through register-configurable sensor mapping. Its secondary I2C/SPI interface can be configured as master or slave-CAN interface requires custom firmware-and it includes runtime diagnostics, bootloader-based field upgrades, and touchscreen self-test capabilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 77 fully configurable TX/RX I/Os for flexible sensor layout on large displays |
| Finger Tracking | Up to 10 simultaneous touches with 5 mm small-finger resolution |
| Refresh Rate | Configurable up to 250 Hz for responsive touch response in dynamic UIs |
| Power Consumption | 30 mW typical active power; 30 µW Deep Sleep for battery-sensitive systems |
| Operating Temp | –40°C to +85°C (Automotive-A grade) for under-dash and center-stack deployment |
| TX Drive Capability | Effective 20 V drive at 5 V VCCTX supply with 17-phase multi-phase TX |
| Secondary Interface | CAN interface enabled via custom firmware for ASIL-B compatible safety communication |
Pinout & Package
Package: 128-lead TQFP, 14 mm × 20 mm × 1.4 mm body, 0.5 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 1.71–1.95 V or 3.0–5.5 V logic rail for host interface compatibility |
| VDDA | Analog supply | 3.0–5.5 V analog domain input for stable ADC reference and sensor excitation |
| VCCTX | Capacitive TX driver supply | 5 V dedicated supply enabling 20 V effective TX voltage via multi-phase boosting |
| SCL/SDA | I²C slave interface | Standard-mode (100 kbps), fast-mode (400 kbps), or fast-mode+ (1 Mbps) host control |
| MOSI/MISO/SCLK/SS | SPI slave interface | Up to 8 Mbps data rate for high-throughput touch report streaming |
| CANH/CANL | CAN physical layer | Differential bus interface supporting ISO 11898-2 for functional safety diagnostics |
| WAKE# | Asynchronous wake signal | Active-low interrupt output indicating valid touch event during low-power look-for-touch mode |
| RESET# | Hardware reset input | Asynchronous active-low reset with internal pull-up; initiates bootloader or firmware reload |
Key Features
| Feature | Design Value |
|---|---|
| Haptic Acoustic Feedback | Integrated audio waveform generation driving piezo actuators without external DAC |
| Slider Sensing | Continuous position reporting across arbitrary linear or curved electrode layouts |
| Water Rejection | Dual-sense capability distinguishes water droplets from finger contact using differential capacitance timing |
| Glove Support | Automatic mode switching detects ≤1 mm thin glove and maintains full 10-finger tracking |
| Auto Armor Technology | Real-time EMI immunity and emission reduction via adaptive TX waveform shaping |
Applications
| Center Stack Infotainment | Driver Information Display (DID) |
|---|---|
Use Scenario: Touchscreen HMI in vehicle center console with ambient light, vibration, and condensation exposure. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing 10-finger gestures, slider volume control, and wake-on-touch activation. Use Value: Dual-sense water rejection ensures reliable operation during rain or beverage spills; 250 Hz refresh sustains smooth gesture response amid system load. | Use Scenario: Digital instrument cluster requiring touch interaction for driver-selectable display modes and warning acknowledgments. IC Role / Device Role / Timing Role: Safety-augmented touch interface with CAN-linked diagnostic reporting and ASIL-B aligned firmware execution. Use Value: Secondary CAN interface enables redundant status reporting to MCU; runtime diagnostics detect sensor degradation before failure. |
| Passenger Seat Entertainment | Head-Up Display (HUD) Control Panel |
Use Scenario: Rear-seat touchscreen for media playback, climate control, and seat adjustment with glove use in cold climates. IC Role / Device Role / Timing Role: Multitouch controller supporting thin-glove operation and haptic feedback for tactile confirmation. Use Value: Automatic glove mode switching preserves 10-finger tracking without user configuration; acoustic haptics reduce visual distraction. | Use Scenario: Compact touch panel adjacent to HUD projector enabling glance-and-tap navigation without head movement. IC Role / Device Role / Timing Role: Low-latency touch processor delivering sub-10 ms gesture-to-action latency with minimal power draw. Use Value: 30 µW Deep Sleep power enables always-on readiness; 5.3 mm electrode pitch supports high-resolution small-area sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multitouch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT817AZS77-5A202 | Includes hover sensing and force touch; lacks acoustic haptic and slider sensing | Targeted at proximity-aware UIs (e.g., gesture-over-display) rather than physical slider controls | Select when hover and force are prioritized over haptic feedback and continuous slider position reporting |
| CYAT817AZS77-53C02 | Includes force touch and haptic feedback but omits acoustic haptics; adds proximity sensing | Designed for combined touch + IR proximity detection in compact cockpits where space limits separate sensors | Choose when proximity-triggered UI transitions are required alongside force-sensitive controls |
Compared with CYAT817AZS77-5A202 and CYAT817AZS77-53C02, the CYAT817AZS77-520DA uniquely combines acoustic haptic output and slider sensing without hover or force-making it optimal for cost-sensitive, high-reliability infotainment panels requiring tactile feedback and intuitive linear controls.
Availability
CYAT817AZS77-520DA is available at Aetrix Electronics and suitable for center stack infotainment, driver information displays, and passenger seat entertainment systems requiring stable component supply across automotive production lifecycles.
Supply support for CYAT817AZS77-520DA 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 part belongs to the PSoC™ Automotive Multitouch generation 7XL product line, engineered specifically for AEC-Q100-compliant human-machine interfaces in vehicles-emphasizing noise resilience, glove/water robustness, and functional safety integration.
FAQ
Does CYAT817AZS77-520DA support CAN interface out of the box?
No. The CAN interface requires custom firmware implementation per Infineon's documentation. Hardware pins (CANH/CANL) are present and electrically compliant with ISO 11898-2, but the controller does not ship with preloaded CAN protocol stack or configuration registers enabled by default.
What is the maximum supported touchscreen size for this controller?
The CYAT817AZS77-520DA supports screens up to 15-inch diagonal with 16:10 aspect ratio and 5.3 mm electrode pitch. Its 77 sense pins enable configurations such as Manhattan or diamond sensor layouts on glass or PET substrates for LCD, AMOLED, or IPS displays.
Is wake-on-touch functionality hardware- or firmware-controlled?
Wake-on-touch is implemented in hardware with firmware-configurable thresholds. The WAKE# pin asserts asynchronously upon valid touch detection during Deep Sleep mode (30 µW), and the internal look-for-touch engine autonomously scans at reduced duty cycle without CPU involvement.
Can this device drive metal-mesh sensors?
Yes. The CYAT817AZS77-520DA explicitly supports metal mesh sensor stackups per datasheet Section 2.3, leveraging its high-drive multi-phase TX architecture and dual-sense capability to maintain SNR and reject noise from conductive overlays.
CYAT817AZS77-520DA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-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:
- 128-TQFP (14x20)
CYAT817AZS77-520DA FAQ
1.How can I place an order for CYAT817AZS77-520DA through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT817AZS77-520DA 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 CYAT817AZS77-520DA reliable?
The price and inventory of CYAT817AZS77-520DA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT817AZS77-520DA is usually 5 days.
3.What payment methods are accepted for CYAT817AZS77-520DA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT817AZS77-520DA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT817AZS77-520DA?
CYAT817AZS77-520DA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT817AZS77-520DA 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 CYAT817AZS77-520DA?
For technical support, including CYAT817AZS77-520DA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT817AZS77-520DA requirements.
6.How does Aetrix verify that CYAT817AZS77-520DA is sourced from the original manufacturer or authorized distributors?
All CYAT817AZS77-520DA 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 CYAT817AZS77-520DA meets industry standards.
7.What is the process for return or replacement of CYAT817AZS77-520DA?
All CYAT817AZS77-520DA units undergo pre-shipment inspection (PSI). If there is an issue with CYAT817AZS77-520DA, 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 CYAT817AZS77-520DA part is unused and in its original packaging.
Return procedure for CYAT817AZS77-520DA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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