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Infineon Technologies CYAT817AZS77-42002
- Part No.:
- CYAT817AZS77-42002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT817AZS77-42002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,372
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Product details
Overview
CYAT817AZS77-42002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 77 configurable sense pins, support for up to 10-finger multitouch, and operation across –40°C to 85°C. It delivers water rejection, glove tracking (up to 1 mm), large object rejection, and dual-sense capability for robust performance in infotainment displays.
For engineers reviewing the CYAT817AZS77-42002 datasheet, CYAT817AZS77-42002 pinout, CYAT817AZS77-42002 application, or CYAT817AZS77-42002 equivalent, this device serves as a base-configuration PSoC™ Automotive Multitouch Gen 7XL controller with I²C/SPI host interface, CAN secondary interface, and full-stack sensor diagnostics - ideal for cost-optimized automotive HMI designs requiring certified reliability without hover, force touch, or slider features.
Technical Context
This device implements a register-configurable CAPSENSE™ engine with integrated DSP for real-time noise filtering, supporting single-pass long-side scanning via 64 dedicated RX ADC channels. Its multi-phase TX architecture enables high SNR at 5 V VCCTX with effective 20 V drive when using 17-phase transmission.
The controller integrates runtime diagnostics, auto-baseline tracking, and manufacturing test kit (MTK) support, while its secondary communication interface is configurable as I²C or SPI master/slave - with CAN enabled by custom firmware per Infineon's documentation. All variants include display armor and wet-finger tracking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 77 fully configurable TX/RX I/Os for flexible sensor layout on automotive touch panels |
| Finger Tracking | Up to 10 simultaneous touches with 5 mm small-finger support and thin-glove operation (≤1 mm) |
| Operating Temp | –40°C to +85°C (Automotive-A grade), validated per AEC-Q100 Rev G |
| Host Interface | I²C slave (100/400 kbps, 1 Mbps) and SPI slave (up to 8 Mbps); no built-in crypto engine |
| Secondary Interface | CAN interface supported via firmware-enabling; requires custom implementation per datasheet note |
| Power Consumption | 30 mW average active power; 30 µW Deep Sleep current for wake-on-touch screen |
| Package | 128LD TQFP, 14 × 20 × 1.4 mm, 0.5 mm pitch - compatible with standard automotive PCB assembly |
Pinout & Package
128-lead Thin Quad Flat Package (TQFP), 14 mm × 20 mm body, 1.4 mm height, 0.5 mm lead pitch. RoHS-compliant, lead-free, and qualified for automotive reflow profiles.
| 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 all digital interfaces and GPIOs |
| VDDA | Analog Supply | 3.0–5.5 V analog domain supply for CAPSENSE™ sensing circuitry and ADCs |
| VCCTX | Capacitive TX Drive | 5 V supply for multi-phase TX drivers; enables 20 V effective drive voltage for SNR optimization |
| SCL / SDA | I²C Host Interface | Standard bidirectional I²C bus lines; supports fast-mode plus (1 Mbps) for low-latency touch reporting |
| MOSI / MISO / SCLK / SS | SPI Host Interface | Full-duplex SPI slave interface; supports up to 8 Mbps for high-throughput sensor data streaming |
| CANH / CANL | CAN Physical Layer | Differential CAN bus terminals; require external transceiver and firmware enablement per datasheet note |
| RESETn | Active-Low Reset | Asynchronous hardware reset input; debounced internally for robust system initialization |
| WAKE | Wake-Up Input | Dedicated interrupt pin for wake-on-touch events; operates in Deep Sleep mode at <50 µA |
Key Features
| Feature | Design Value |
|---|---|
| Water Rejection & Wet-Finger Tracking | Dual-sense capability enables reliable operation under condensation or rain-covered displays without false triggers |
| Glove Support | Automatic mode switching detects and tracks fingers through ≤1 mm thin gloves without configuration changes |
| Large Object Rejection | Discriminates palm or forearm contact from intentional finger input using capacitance gradient analysis |
| Auto Armor Technology | Simultaneously reduces EMI emissions and improves immunity against display noise and RF interference |
| Runtime Diagnostics | On-the-fly sensor health monitoring including open/short detection and baseline drift compensation |
Applications
| Infotainment Display Control | Digital Instrument Cluster |
|---|---|
Use Scenario: Touchscreen HMI in center console with LCD/AMOLED display, exposed to ambient temperature cycling and condensation. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing 10-finger gestures, wake-on-touch, and water rejection. Use Value: Enables AEC-Q100-certified, low-power (<30 µW) wake-up and reliable operation under wet conditions without added shielding. | Use Scenario: Driver-facing digital gauge cluster requiring high-reliability touch input for menu navigation and warning acknowledgment. IC Role / Device Role / Timing Role: Safety-critical touch interface with runtime diagnostics and fault reporting to vehicle ECU via CAN. Use Value: Provides certified fault detection (open/short sensors) and deterministic response time (<250 Hz refresh) for driver interaction. |
| Passenger Seat Entertainment | Rear-Seat Tablet Integration |
Use Scenario: Shared rear-seat touchscreen used with gloves and varying environmental lighting and humidity. IC Role / Device Role / Timing Role: Multitouch controller supporting thin-glove tracking and automatic baseline adaptation to temperature/humidity shifts. Use Value: Eliminates manual recalibration; maintains consistent sensitivity across seasonal cabin conditions. | Use Scenario: Embedded tablet module in headrest or armrest with plastic (PET) sensor substrate and metal-mesh overlay. IC Role / Device Role / Timing Role: Sensor interface for SLIM or hybrid in-cell stackups with configurable electrode pitch (5.3 mm). Use Value: Supports diverse mechanical implementations without redesigning firmware or layout for new form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT817AZS77-5A202 | Includes hover sensing and low-power wake-up button; same 77-pin count and package | Required for proximity-aware UI (e.g., gesture preview before touch) and ultra-low-power wake button implementation | Select when hover or dedicated wake-button functionality is needed; adds ~$0.35 BOM cost |
| CYAT817AZS77-53C02 | Enables force touch and slider sensing; retains all base features plus CAPSENSE™ buttons | Necessary for haptic feedback integration and linear control surfaces (e.g., volume sliders) | Choose for advanced HMI with pressure-sensitive controls; requires additional FPC sensor design |
Compared with CYAT817AZS77-42002, the -5A202 adds proximity awareness and dedicated wake-button support, while the -53C02 enables force-based interaction and slider UX - both retain identical package, temperature rating, and core CAPSENSE™ engine but increase feature complexity and BOM requirements.
Availability
CYAT817AZS77-42002 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, and rear-seat entertainment modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CYAT817AZS77-42002 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 automotive, power management, and security solutions, with global R&D and manufacturing infrastructure.
CYAT817X belongs to the PSoC™ Automotive Multitouch Generation 7XL product line, designed specifically for certified, noise-resilient capacitive touch interfaces in automotive cockpits - emphasizing functional safety, EMI robustness, and field-upgradable firmware.
FAQ
Does CYAT817AZS77-42002 support CAN communication out of the box?
No. The CAN interface is present on the die and accessible via CANH/CANL pins, but requires custom firmware to enable and configure it as either master or slave. The base firmware image does not activate CAN by default, and Infineon provides reference code only upon request through MyICP access.
What is the maximum supported touchscreen size for this controller?
CYAT817AZS77-42002 supports screens up to 15-inch diagonal with 16:10 aspect ratio and 5.3 mm electrode pitch. Its 77 sense pins allow configurations such as 12×12 or 13×13 grids, enabling resolutions sufficient for HD+ (1600×900) touch overlays on automotive displays.
Is Android driver support included with this part number?
Yes - Android driver support is provided as part of the standard PSoC™ Automotive software development kit (SDK), including HAL integration, touch report formatting, and gesture mapping. No additional licensing is required, though board-specific bring-up may need OEM validation.
Can this device operate with a 3.3 V-only power system?
Yes. VDDIO accepts 3.0–5.5 V, and VDDA accepts 3.0–5.5 V, allowing full operation from a single 3.3 V rail with appropriate decoupling. VCCTX must be supplied at 5 V to achieve specified 20 V effective TX drive; using 3.3 V here reduces SNR and maximum sense distance.
CYAT817AZS77-42002 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)
CYAT817AZS77-42002 FAQ
1.How can I place an order for CYAT817AZS77-42002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT817AZS77-42002 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 CYAT817AZS77-42002 reliable?
The price and inventory of CYAT817AZS77-42002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT817AZS77-42002 is usually 5 days.
3.What payment methods are accepted for CYAT817AZS77-42002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT817AZS77-42002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT817AZS77-42002?
CYAT817AZS77-42002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT817AZS77-42002 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 CYAT817AZS77-42002?
For technical support, including CYAT817AZS77-42002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT817AZS77-42002 requirements.
6.How does Aetrix verify that CYAT817AZS77-42002 is sourced from the original manufacturer or authorized distributors?
All CYAT817AZS77-42002 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 CYAT817AZS77-42002 meets industry standards.
7.What is the process for return or replacement of CYAT817AZS77-42002?
All CYAT817AZS77-42002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT817AZS77-42002, 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 CYAT817AZS77-42002 part is unused and in its original packaging.
Return procedure for CYAT817AZS77-42002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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