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Infineon Technologies CYAT817AZS88-42002
- Part No.:
- CYAT817AZS88-42002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT817AZS88-42002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
CYAT817AZS88-42002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller featuring a 32-bit Arm® Cortex® CPU, 88 configurable sense pins, support for up to 10-finger multitouch, and operation across –40°C to 85°C. It delivers wake-on-touch screen capability, water rejection, glove support (up to 5 mm), and dual-sense architecture for wet-finger tracking - deployed in infotainment displays and digital instrument clusters.
For engineers reviewing the CYAT817AZS88-42002 datasheet, CYAT817AZS88-42002 pinout, CYAT817AZS88-42002 application, or CYAT817AZS88-42002 equivalent, this device is selected for automotive touch systems requiring robust EMI immunity, low-power wake-up (< 50 µA), CAN interface support, and field-upgradable firmware via bootloader.
Technical Context
This controller implements a multi-phase TX architecture with up to 300 kHz TX frequency and integrated DSP for real-time noise filtering, enabling high-SNR scanning even under display EMI and ambient RF interference. Its dual-sense capability supports simultaneous self-capacitance and mutual-capacitance measurement for reliable wet-finger and hover detection up to 35 mm.
The device integrates two independent serial communication blocks: primary I²C/SPI for host touch data exchange and secondary configurable I²C/SPI or CAN for safety-critical diagnostics or proximity sensor coordination. All configurations operate within automotive-A temperature range (–40°C to 85°C) and meet ISO 11898-2 physical layer requirements when CAN is enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 88 fully configurable TX/RX pins - enables large-format touchscreens (up to 15-inch diagonal) with fine electrode pitch (5.3 mm). |
| Touch Resolution | Up to 10 simultaneous fingers - supports complex gesture recognition and split-screen interaction in automotive UIs. |
| Operating Temp | –40°C to +85°C (Automotive-A grade) - validated per AEC-Q100 Rev G for under-hood and cabin-mounted displays. |
| Power Consumption | 30 µW typical Deep Sleep current - sustains battery-backed wake-on-touch functionality without compromising vehicle parasitic drain. |
| TX Drive Capability | Effective 20 V drive using 17-phase TX at 5 V VCCTX - improves SNR by >12 dB versus single-phase implementations. |
| Host Interface | I²C slave (100/400 kbps, 1 Mbps) and SPI slave (up to 8 Mbps) - ensures compatibility with common automotive SoCs and RTOS-based hosts. |
| Secondary Interface | Configurable I²C/SPI or CAN - provides redundant communication path for functional safety monitoring or external sensor fusion. |
Pinout & Package
Package: 128-lead TQFP (14 × 20 × 1.4 mm, 0.5 mm pitch), RoHS-compliant, 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 - supports dual-voltage host interfaces and flexible power domain partitioning. |
| VDDA | Analog supply | 3.0–5.5 V - powers internal ADCs, reference buffers, and analog front-end for stable capacitance measurement. |
| VCCTX | TX driver supply | 5 V nominal - enables high-voltage multi-phase TX for enhanced SNR and noise resilience in noisy automotive environments. |
| SCL/SDA | I²C bus interface | Primary host communication - supports standard, fast, and high-speed modes for touch report streaming and configuration updates. |
| CSN/SCLK/MISO/MOSI | SPI interface | Alternative high-bandwidth host link - used for firmware updates or high-refresh-rate applications (e.g., HUD touch overlay). |
| CANH/CANL | CAN physical layer | Secondary safety interface - requires custom firmware enablement; compliant with ISO 11898-2 for fault-tolerant diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Auto Armor Technology | Simultaneously reduces EMI emissions and improves immunity - eliminates need for external shielding layers in display stackup. |
| Dual-Sense Architecture | Enables concurrent self- and mutual-capacitance sensing - critical for accurate wet-finger tracking and water rejection without false triggers. |
| Glove Support | Operates with ≤5 mm thick gloves - achieved via adaptive baseline tracking and high-SNR TX drive, eliminating manual mode switching. |
| Low-Power Wake-Up Button | Sub-50 µA active current in look-for-touch mode - extends battery life in always-on display subsystems. |
| Runtime Diagnostics | On-the-fly sensor integrity checks and open/short detection - satisfies ASIL-B diagnostic coverage requirements for touch subsystems. |
Applications
| Infotainment Display Touch | Digital Instrument Cluster |
|---|---|
Use Scenario: 12-inch central touchscreen in EV cockpit with ambient light variation, glove use, and display EMI. IC Role / Device Role / Timing Role: Primary capacitive touch controller handling 10-finger gestures, slider navigation, and wake-on-touch event generation. Use Value: Dual-sense and auto armor ensure reliable operation despite AMOLED display noise and thermal cycling between –40°C and 85°C. | Use Scenario: Driver-facing 10-inch TFT cluster with safety-critical touch feedback and CAN-linked warning alerts. IC Role / Device Role / Timing Role: Touch subsystem controller providing ASIL-B–aligned diagnostics and secondary CAN interface for fault reporting to MCU. Use Value: Runtime diagnostics and configurable CAN interface enable compliance with ISO 26262 functional safety requirements. |
| Head-Up Display (HUD) Overlay | Passenger Seat Control Panel |
Use Scenario: Small-area projected touch overlay on windshield HUD with minimal bezel space and high EMI exposure. IC Role / Device Role / Timing Role: Compact touch controller managing hover sensing (up to 35 mm) and thin-glove operation on curved surface. Use Value: High-frequency TX hopping and 300 kHz max TX frequency suppress interference from HUD projector drivers and radar modules. | Use Scenario: Rear-seat entertainment panel with multi-user access, wet-finger tolerance, and long-term reliability. IC Role / Device Role / Timing Role: Multitouch controller supporting split-screen and free-form shape recognition for child-safe UI zones. Use Value: Water rejection and large-object rejection prevent accidental activation from spilled liquids or resting arms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT817AZS88-52002 | Includes hover sensing and slider support; lacks CAN interface and secondary SCB. | Suitable for non-safety-critical infotainment where CAN diagnostics are not required. | Select when cost optimization is prioritized over functional safety communication paths. |
| CYAT817AZA88-42002 | Same pinout and core functionality; differs only in marketing code (A vs S) indicating identical spec but alternate traceability. | No functional difference - used for internal logistics or customer-specific part numbering. | Select only if mandated by OEM BOM or procurement system requirements. |
Compared with CYAT817AZS88-42002, the -52002 variant trades CAN capability for lower unit cost in consumer-grade automotive displays, while the -42002 "A" suffix reflects identical silicon with alternate packaging traceability - neither offers force touch or haptic feedback support present in BFBA variants.
Availability
CYAT817AZS88-42002 is available at Aetrix Electronics and suitable for automotive infotainment displays, digital instrument clusters, and HUD overlays requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for CYAT817AZS88-42002 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 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, designed specifically for high-reliability, EMI-resilient capacitive touch systems in modern vehicle cockpits and ADAS interfaces.
FAQ
Does CYAT817AZS88-42002 support force touch sensing?
No. This variant lacks force touch capability, as confirmed by its ordering code "42002", which maps to no force touch, no slider, no haptics, and no acoustic feedback per Table 1 of the datasheet summary. Force touch is only enabled in BFBA and B202 variants.
What is the maximum supported touchscreen size for CYAT817AZS88-42002?
The device supports screens up to 15-inch diagonal, based on its 88 sense pins, 5.3 mm minimum electrode pitch, and 16:10 aspect ratio configuration - verified in the System Performance section of the datasheet summary.
Is CAN interface hardware-enabled or firmware-configured on this part?
The CAN interface is hardware-present but requires custom firmware to enable, as explicitly stated in Note 2 of the datasheet summary. The physical CANH/CANL pins are bonded out in the 128LD TQFP package and electrically functional upon firmware activation.
What power supplies are required for normal operation?
Three supplies are required: VDDIO (1.71–1.95 V or 3.0–5.5 V) for digital I/Os, VDDA (3.0–5.5 V) for analog circuitry, and VCCTX (5 V nominal) for TX drivers - all specified in the Power section and validated across the full automotive temperature range.
CYAT817AZS88-42002 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)
CYAT817AZS88-42002 FAQ
1.How can I place an order for CYAT817AZS88-42002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT817AZS88-42002 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 CYAT817AZS88-42002 reliable?
The price and inventory of CYAT817AZS88-42002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT817AZS88-42002 is usually 5 days.
3.What payment methods are accepted for CYAT817AZS88-42002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT817AZS88-42002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT817AZS88-42002?
CYAT817AZS88-42002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT817AZS88-42002 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 CYAT817AZS88-42002?
For technical support, including CYAT817AZS88-42002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT817AZS88-42002 requirements.
6.How does Aetrix verify that CYAT817AZS88-42002 is sourced from the original manufacturer or authorized distributors?
All CYAT817AZS88-42002 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 CYAT817AZS88-42002 meets industry standards.
7.What is the process for return or replacement of CYAT817AZS88-42002?
All CYAT817AZS88-42002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT817AZS88-42002, 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 CYAT817AZS88-42002 part is unused and in its original packaging.
Return procedure for CYAT817AZS88-42002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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