My Inquiry
My Account
Infineon Technologies CYAT817AZS77-5BFBA
- Part No.:
- CYAT817AZS77-5BFBA
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT817AZS77-5BFBA.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,421
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYAT817AZS77-5BFBA 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 10-finger multitouch, hover sensing up to 35 mm, force touch (0.5–10 N), and low-power wake-on-touch (< 50 µA). It enables high-SNR operation via 20 V effective drive voltage (with 17-phase TX and 5 V VCCTX) and integrates CAPSENSE™ for button, slider, and free-form shape sensing in automotive infotainment displays.
For engineers reviewing the CYAT817AZS77-5BFBA datasheet, CYAT817AZS77-5BFBA pinout, CYAT817AZS77-5BFBA application, or CYAT817AZS77-5BFBA equivalent, this device delivers verified dual-sense water rejection, glove support (≤5 mm), 250 Hz refresh rate, CAN interface capability, and runtime diagnostics - critical for ASIL-B–aligned human-machine interface (HMI) designs in instrument clusters and center consoles.
Technical Context
This PSoC™ Automotive Multitouch generation 7XL controller implements a dedicated capacitive sensing engine with 64 independent RX ADC channels and integrated DSP for single-pass long-side scanning. Its multi-phase TX architecture supports up to 300 kHz frequency hopping and auto armor technology for simultaneous EMI emission and immunity improvement.
The device features two configurable SCB interfaces: primary I²C/SPI for touch data transfer (up to 8 Mbps SPI), and secondary I²C/SPI/CAN for safety-critical communication - with CAN requiring custom firmware enablement. Force sensing uses five dedicated RX channels operating at ≤100 Hz refresh rate with 0.1 N resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 77 fully configurable TX/RX pins (98-pin variant includes 5 TX-only); enables large-format 15-inch diagonal touchscreens with 5.3 mm electrode pitch. |
| Touch Capacity | Simultaneous 10-finger tracking with small-finger support down to 5 mm; supports thin-glove (≤1 mm) and thick-glove (≤5 mm) operation. |
| Hover Range | Up to 35 mm detection distance; enables proximity-aware UI transitions without physical contact. |
| Force Sensing | 0.5–10 N range, 100 μm/10 N displacement, 0.1 N resolution; implemented with rigid-body mechanics and cost-efficient FPC sensors. |
| Power Consumption | 30 mW average active power; 30 μW Deep Sleep current; low-power look-for-touch mode enables <50 µA wake-up button operation. |
| Operating Temp | Automotive-A grade: –40°C to +85°C ambient; validated for dashboard-mounted HMI systems under thermal cycling stress. |
| Interface Options | I²C slave (100/400 kbps, 1 Mbps), SPI slave (up to 8 Mbps), optional cryptographic engine, and secondary CAN interface (firmware-enabled). |
Pinout & Package
Package: 128-lead TQFP, 14 mm × 20 mm × 1.4 mm body, 0.5 mm pitch. RoHS-compliant, lead-free, and qualified per AEC-Q100 Grade 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O Supply | 1.71–1.95 V or 3.0–5.5 V logic rail; powers GPIOs and digital peripherals; separate from analog supply. |
| VDDA | Analog Supply | 3.0–5.5 V analog domain supply; powers RX ADCs, sensor drivers, and CAPSENSE™ front-end. |
| VCCTX | Capacitive TX Drive Supply | 5 V nominal; enables 20 V effective multi-phase TX drive for improved SNR in noisy automotive environments. |
| SCL / SDA | I²C Interface | Primary host interface for touch report streaming; supports standard/fast/high-speed modes up to 1 Mbps. |
| MOSI / MISO / SCLK / SS | SPI Interface | Alternative high-bandwidth host interface; 8 Mbps max clock enables rapid frame updates for 250 Hz scanning. |
| CAN_H / CAN_L | CAN Transceiver Interface | Secondary safety interface; requires custom firmware to configure as CAN master/slave; supports ISO 11898-2. |
| WAKE# | Wake-on-Touch Input | Active-low interrupt output; asserts on valid touch/hover event during Deep Sleep; <50 µA quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-sense water rejection | Uses independent TX/RX channel pairing to distinguish wet-finger signals from moisture artifacts; maintains tracking under condensation. |
| Auto Armor noise suppression | Real-time adaptive filtering across display switching frequencies; reduces EMI coupling without external shielding or layout constraints. |
| Runtime diagnostics | On-the-fly sensor integrity checks including open/short detection, baseline drift monitoring, and ADC calibration validation. |
| Split-screen support | Enables independent touch zones with distinct gesture mapping per region; required for driver/passenger zone separation in digital cockpits. |
| Field upgrade via bootloader | Secure over-the-air (OTA) firmware update path using cryptographic engine; supports signed image verification and rollback protection. |
Applications
| Instrument Cluster HMI | Center Console Touchscreen |
|---|---|
Use Scenario: Driver interaction with speedometer, navigation, and vehicle settings in real time under vibration and sunlight. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing 10-finger gestures, force-based menu selection, and wake-on-touch activation. Use Value: 250 Hz refresh rate ensures sub-4 ms latency; glove support maintains usability with winter driving gloves; water rejection prevents false triggers during rain exposure. |
Use Scenario: Passenger-controlled infotainment system with slider volume control, multi-app switching, and haptic feedback integration. IC Role / Device Role / Timing Role: Dual-role controller handling both touch reporting and haptic actuator timing synchronization via shared SPI bus. Use Value: Slider sensing with sub-pixel interpolation enables precise audio level adjustment; force touch maps to contextual menu expansion without additional hardware buttons. |
| Digital Rearview Mirror | Head-Up Display (HUD) Touch Overlay |
Use Scenario: Touch-responsive rearview mirror with blind-spot alerts, camera switching, and night-mode toggle in compact form factor. IC Role / Device Role / Timing Role: Low-power wake-on-touch controller maintaining <50 µA sleep current while detecting finger approach within 35 mm hover range. Use Value: Hover sensing enables pre-activation of UI elements before contact; 30 μW Deep Sleep extends battery backup duration during vehicle off-state. |
Use Scenario: Transparent touch layer overlaid on HUD projection surface for driver-accessible controls without obstructing forward view. IC Role / Device Role / Timing Role: High-SNR controller using 20 V effective TX drive to overcome optical film attenuation and ambient light interference. Use Value: Multi-phase TX and auto armor ensure stable signal integrity despite EMI from HUD projector electronics and adjacent ADAS modules. |
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 | Omits slider, haptic, acoustic, and secondary CAN interfaces; retains 77-pin count and 10-finger support. | Limited to basic touch reporting in cost-sensitive entry-level dashboards without advanced gesture or safety comms. | Select when CAN safety interface and multimodal input (slider/haptic) are not required. |
| CYAT817AZA77-5BFBA | Same pinout and feature set but with automotive-S temperature grade (–40°C to +105°C) instead of automotive-A. | Required for under-hood or near-engine HMI deployments where extended ambient temperature tolerance is mandatory. | Choose for higher-temperature zones such as integrated HVAC control panels or exposed center stack modules. |
Compared with CYAT817AZS77-5A202, the -5BFBA adds CAN and multimodal sensing for ASIL-B–aligned systems; versus CYAT817AZA77-5BFBA, it trades extended temperature range for lower cost and qualification scope in cabin-zone applications.
Availability
CYAT817AZS77-5BFBA is available at Aetrix Electronics and suitable for automotive instrument clusters, center console touchscreens, and digital rearview mirrors requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for CYAT817AZS77-5BFBA 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, engineered specifically for functional-safety–aware, high-noise automotive HMIs with demanding environmental and electromagnetic requirements.
FAQ
Does CYAT817AZS77-5BFBA support CAN FD or only classical CAN?
No, CYAT817AZS77-5BFBA supports only classical CAN (ISO 11898-2) at up to 1 Mbps. The datasheet specifies "CAN interface" without FD capability, and no CAN FD registers, bit-rate switching, or payload extension features are documented in the generation 7XL architecture or ordering table notes.
What is the maximum supported touchscreen size for this part?
The CYAT817AZS77-5BFBA supports screen sizes up to 15-inch diagonal, as confirmed in the Datasheet Summary (page 2) under "System performance." This assumes 5.3 mm electrode pitch and 16:10 aspect ratio, with full utilization of its 77 sense pins for optimal resolution and SNR.
Is the cryptographic engine FIPS 140-2 certified?
No FIPS 140-2 certification is claimed for the onboard cryptographic engine in the CYAT817AZS77-5BFBA datasheet or Infineon's public documentation. It supports AES-128/256 and SHA-256 acceleration, but formal validation status is not specified and must be confirmed separately through Infineon's security compliance portal.
Can the force touch functionality operate independently of standard touch detection?
Yes - force sensing uses five dedicated RX channels that can scan in parallel with standard touch acquisition. The datasheet confirms "five RX channels can be used for parallel touch/force scan," enabling simultaneous pressure measurement and positional tracking without time multiplexing or performance trade-offs.
CYAT817AZS77-5BFBA 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)
CYAT817AZS77-5BFBA FAQ
1.How can I place an order for CYAT817AZS77-5BFBA through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT817AZS77-5BFBA 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 CYAT817AZS77-5BFBA reliable?
The price and inventory of CYAT817AZS77-5BFBA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT817AZS77-5BFBA is usually 5 days.
3.What payment methods are accepted for CYAT817AZS77-5BFBA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT817AZS77-5BFBA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT817AZS77-5BFBA?
CYAT817AZS77-5BFBA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT817AZS77-5BFBA 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 CYAT817AZS77-5BFBA?
For technical support, including CYAT817AZS77-5BFBA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT817AZS77-5BFBA requirements.
6.How does Aetrix verify that CYAT817AZS77-5BFBA is sourced from the original manufacturer or authorized distributors?
All CYAT817AZS77-5BFBA 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 CYAT817AZS77-5BFBA meets industry standards.
7.What is the process for return or replacement of CYAT817AZS77-5BFBA?
All CYAT817AZS77-5BFBA units undergo pre-shipment inspection (PSI). If there is an issue with CYAT817AZS77-5BFBA, 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 CYAT817AZS77-5BFBA part is unused and in its original packaging.
Return procedure for CYAT817AZS77-5BFBA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYAT817AZS77-5BFBA Tags
-
TSC2046IPWR
Texas Instruments
-
TSC2007IPWR
Texas Instruments
-
TSC2046EIPWR
Texas Instruments
-
AR1021-I/SS
Microchip Technology
-
AR1020-I/SS
Microchip Technology
-
AR1100-I/MQ
Microchip Technology
-
AR1021T-I/ML
Microchip Technology
-
AR1100T-I/SS
Microchip Technology
-
TSC2003IPWR
Texas Instruments
-
TSC2004IRTJR
Texas Instruments
-
AR1100BRD
Microchip Technology
.jpg)
-
TSC2046IRGVR
Texas Instruments
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
