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Infineon Technologies CYAT837AZA98-42002
- Part No.:
- CYAT837AZA98-42002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT837AZA98-42002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,669
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Product details
Overview
CYAT837AZA98-42002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller with Arm® Cortex® CPU, 98 sense I/Os, 128-pin TQFP package, -40°C to 85°C operating range, and support for wet-finger tracking, glove operation (≤1 mm), and 10-finger multitouch - deployed in infotainment displays up to 35-inch diagonal.
For engineers reviewing the CYAT837AZA98-42002 datasheet, CYAT837AZA98-42002 pinout, CYAT837AZA98-42002 application, or CYAT837AZA98-42002 equivalent, key selection criteria include sense channel count (98), glove/water rejection capability, I²C host interface speed (up to 1 Mbps), SNR-optimized multi-phase TX drive, and automotive temperature grade (A).
Technical Context
This device implements a register-configurable, multi-chip PSoC™ Automotive Multitouch Generation 7XL architecture with integrated DSP, 192-channel ADC array, and high-order multi-phase TX (up to 150 kHz) for noise-resilient scanning. It supports single-pass long-side scanning and automatic baseline tracking across environmental drift.
DualSense sensing enables simultaneous water rejection and wet-finger tracking; AutoArmor enhances EMI immunity/emissions while supporting thin-glove (≤1 mm) and fingernail input. The controller reports up to ten fingers at refresh rates up to 120 Hz on electrode pitches down to 6 mm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 98 - supports large-area touch sensors with high-resolution electrode grids |
| Operating Temp Range | -40°C to +85°C (Automotive-A grade) - validated for cabin-mounted infotainment systems |
| Host Interface | I²C slave up to 1 Mbps - enables low-latency communication with application processors |
| TX Frequency Max | 150 kHz - improves signal discrimination in noisy automotive EMI environments |
| Refresh Rate | Up to 120 Hz - delivers responsive user interaction for dynamic UI navigation |
| Power Consumption | 260 mW (3-chip solution) - optimized for thermal management in sealed display modules |
| ADC Channels | 192 - enables parallel acquisition across full sensor matrix without time-multiplexing loss |
Pinout & Package
128-pin TQFP package, 14 × 20 × 1.4 mm, 0.5-mm pitch, RoHS-compliant, lead-free finish.
| 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 system interfacing |
| VDDA | Analog supply | 3.0–5.5 V - powers ADCs and analog front-end for stable SNR performance |
| SCL / SDA | I²C host interface | Open-drain, 1 Mbps capable - direct connection to SoC without level-shifting |
| RESETn | Active-low reset | Asynchronous hardware reset - ensures deterministic startup after power sequencing |
| INT | Interrupt output | Push-pull, active-high - signals touch event readiness to host processor |
| SENSE[0:97] | Capsense electrode inputs | 98 dedicated sense pins - enables fine-grained electrode mapping for 35-inch displays |
Key Features
| Feature | Design Value |
|---|---|
| DualSense water rejection | Enables reliable operation during rain, condensation, or spill events without false triggers |
| AutoArmor EMI mitigation | Reduces radiated emissions and improves immunity without external shielding components |
| Glove mode switching | Automatic detection and seamless transition between bare-finger and ≤1-mm glove input |
| Fingernail tracking | Recognizes precise fingernail gestures for accessibility and stylus-like control |
| Manufacturing test kit (MTK) | Enables in-line calibration and functional verification during display module assembly |
Applications
| Infotainment Display Touch Controller | Center Stack Touch Interface |
|---|---|
Use Scenario: Integrated into 10–17-inch center-stack displays for automotive OEMs requiring AEC-Q100 compliance and glove operation. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing electrode scanning, noise filtering, and gesture reporting via I²C. Use Value: Supports thin-glove input and wet-finger tracking - critical for usability in cold/humid climates without compromising SNR. | Use Scenario: Embedded in premium vehicle instrument clusters with curved glass overlays and metal bezels. IC Role / Device Role / Timing Role: Multichip master controller coordinating multiple sensor zones and synchronizing scan timing across heterogeneous electrode layouts. Use Value: 192-channel ADC array enables single-pass scanning - reduces latency and eliminates inter-zone timing artifacts. |
| Rear Seat Entertainment Panel | Head-Up Display (HUD) Touch Overlay |
Use Scenario: Mounted behind acrylic or polycarbonate substrates in rear-seat tablets with PET-based sensor layers. IC Role / Device Role / Timing Role: Sensor interface handling Manhattan/diamond electrode patterns and self-test diagnostics. Use Value: Large object rejection prevents accidental activation by arms or clothing during vehicle motion. | Use Scenario: Integrated into HUD combiner glass with ultra-thin SOL (sensor-on-lens) stackup and AMOLED backlighting. IC Role / Device Role / Timing Role: High-SNR touch controller compensating for display EMI using DisplayArmor and multi-phase TX. Use Value: 150 kHz TX frequency and integrated DSP suppress display-coupled noise - maintains accuracy under bright ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT847AZA98-42002 | Slave configuration in multi-chip topology; lacks master arbitration logic and boot ROM for standalone operation | Requires companion CYAT837X master; used only in extended-sensor-count designs (>98 electrodes) | Select when scaling beyond 98 sense channels using daisy-chained architecture |
| CYAT837AZS98-42002 | Identical functionality but rated for -40°C to +105°C (Automotive-S grade) | Targeted for engine bay–adjacent or sun-exposed display mounting locations | Select for higher ambient thermal environments where 85°C limit is insufficient |
Compared with CYAT847AZA98-42002, this part serves as the master controller with full bootloader and autonomous operation; versus CYAT837AZS98-42002, it trades extended temperature range for cost and thermal margin optimization in cabin-constrained deployments.
Availability
CYAT837AZA98-42002 is available at Aetrix Electronics and suitable for automotive infotainment systems, center-stack touch interfaces, and rear-seat entertainment panels requiring stable component supply, AEC-Q100 qualification, and production-ready firmware support.
Supply support for CYAT837AZA98-42002 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, noise-immune capacitive touch in automotive human-machine interfaces with stringent safety and environmental requirements.
FAQ
What is the maximum supported touchscreen size for CYAT837AZA98-42002?
The device supports screen sizes up to 35-inch diagonal with 16:10 aspect ratio and 6-mm electrode pitch. This capability is enabled by its 98 sense I/Os, 192-channel ADC array, and single-pass long-side scanning architecture - verified in reference designs using Manhattan and diamond sensor layouts on glass and PET substrates.
Does CYAT837AZA98-42002 support Android OS integration out of the box?
Yes - Infineon provides certified Android drivers and HAL integration packages for this part, including support for Android 10 through 13. The driver implements standard Input Protocol (EV_ABS/EV_KEY) and handles DualSense, glove mode, and water rejection events as native Android touch events without middleware modification.
Can CYAT837AZA98-42002 operate with a 5-V analog supply while using 1.8-V digital I/Os?
Yes - the device supports independent supply domains: VDDA (3.0–5.5 V) for analog circuitry and VDDIO (1.71–1.95 V or 3.0–5.5 V) for digital I/Os. This allows direct interfacing with 5-V display bias supplies and 1.8-V application processors without level shifters or LDOs.
Is field firmware upgrade supported, and what interface is used?
Yes - field upgrades are supported via the integrated bootloader using the I²C interface. The bootloader validates signed firmware images and supports secure over-the-air (OTA) updates through host-controlled memory writes to designated flash sectors, with rollback protection and CRC-32 integrity checking.
CYAT837AZA98-42002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 128-LQFP
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- -
- Interface:
- I2C
- Voltage Reference:
- -
- Voltage - Supply:
- 1.71V ~ 1.95V, 3V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 128-TQFP (14x20)
CYAT837AZA98-42002 FAQ
1.How can I place an order for CYAT837AZA98-42002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT837AZA98-42002 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 CYAT837AZA98-42002 reliable?
The price and inventory of CYAT837AZA98-42002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT837AZA98-42002 is usually 5 days.
3.What payment methods are accepted for CYAT837AZA98-42002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT837AZA98-42002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT837AZA98-42002?
CYAT837AZA98-42002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT837AZA98-42002 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 CYAT837AZA98-42002?
For technical support, including CYAT837AZA98-42002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT837AZA98-42002 requirements.
6.How does Aetrix verify that CYAT837AZA98-42002 is sourced from the original manufacturer or authorized distributors?
All CYAT837AZA98-42002 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 CYAT837AZA98-42002 meets industry standards.
7.What is the process for return or replacement of CYAT837AZA98-42002?
All CYAT837AZA98-42002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT837AZA98-42002, 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 CYAT837AZA98-42002 part is unused and in its original packaging.
Return procedure for CYAT837AZA98-42002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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