Infineon Technologies CYAT847AZS98-42002
- Part No.:
- CYAT847AZS98-42002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT847AZS98-42002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:

- Shipping:

Inventory:720
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Product details
Overview
CYAT847AZS98-42002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller with Arm® Cortex® CPU, supporting up to 296 sense pins and 10-finger tracking on displays up to 35-inch diagonal. It delivers 120 Hz refresh rate, 150 kHz TX frequency, and integrated DSP for noise filtering in harsh EMI environments.
For engineers reviewing the CYAT847AZS98-42002 datasheet, CYAT847AZS98-42002 pinout, CYAT847AZS98-42002 application, or CYAT847AZS98-42002 equivalent, key selection criteria include glove/water rejection capability, 128-pin TQFP packaging, -40°C to 105°C operating range, and I²C host interface at up to 1 Mbps.
Technical Context
This device operates as a slave touchscreen controller in multi-chip PSoC Automotive Generation 7XL systems, configured as a Slave ('4' in part number) with DualSense water rejection and AutoArmor EMI mitigation. It supports high-order multi-phase TX (up to 17 phases) and 5-V VCCTX supply for enhanced SNR.
The IC integrates 192 independent ADC channels and dedicated DSP hardware to enable single-pass long-side scanning, reducing latency and improving noise immunity in automotive infotainment and instrument cluster touch interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp Range | -40°C to +105°C (Automotive-S grade, suitable for under-dash and center-stack mounting) |
| Touch Sensing Capacity | Up to 296 sense pins and 10,320 intersections (enables large-format, high-resolution touch panels) |
| Refresh Rate | Up to 120 Hz (supports responsive UI interaction in real-time driver information systems) |
| TX Frequency | Up to 150 kHz (optimized for noise immunity in electric vehicle EMI environments) |
| Host Interface | I²C slave at 100 kbps / 400 kbps / 1 Mbps (compatible with automotive SoCs without requiring SPI or custom protocols) |
| Power Supply | 1.71–1.95 V core, 3.0–5.5 V I/O and analog (dual-rail operation enables flexible power domain partitioning) |
| ADC Channels | 192 independent channels (enables parallel sensing and eliminates sequential scan bottlenecks) |
Pinout & Package
Package: 128-pin TQFP (14 mm × 20 mm × 1.4 mm, 0.5 mm pitch), RoHS-compliant, lead-free, automotive-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 3.0–5.5 V rail powering GPIOs and I²C interface; decoupling required per automotive EMC standards |
| VDDA | Analog supply | 3.0–5.5 V dedicated rail for ADCs and sensor front-end; isolated layout critical for SNR |
| VSS | Digital ground | Reference for digital logic and I²C signaling; must be star-connected to minimize ground bounce |
| VSSA | Analog ground | Separate AGND plane for ADC reference; isolated from digital ground except at single-point tie |
| SCL / SDA | I²C host interface | Open-drain pins supporting 1 Mbps; internal pull-ups disabled by default for external control |
| SENSE[0:295] | Capsense electrode inputs | Configurable as TX or RX; supports Manhattan/diamond routing and metal-mesh sensors |
| RESETn | Active-low reset | Asynchronous hardware reset; requires ≥10 µs pulse width for reliable initialization |
| INT | Interrupt output | Open-drain signal indicating touch event or firmware update readiness; level-triggered |
Key Features
| Feature | Design Value |
|---|---|
| DualSense water rejection | Simultaneous self- and mutual-capacitance measurement enables reliable wet-finger tracking without false triggers |
| AutoArmor EMI mitigation | Hardware-accelerated correlation filtering and multi-phase TX suppress display noise and radiated emissions |
| Glove mode switching | Automatic detection of thin (≤1 mm) or thick (≤5 mm) gloves; no host software intervention required |
| Fingernail and large-object rejection | Real-time capacitance gradient analysis discriminates fingernails from fingertips and rejects palm/forearm contact |
| Field-upgradable bootloader | Secure OTA update support via I²C; signed firmware images prevent unauthorized modification |
Applications
| Infotainment Display Touch Interface | Driver Instrument Cluster |
|---|---|
Use Scenario: 12–17-inch LCD/AMOLED touchscreen in center console with ambient light, vibration, and EMI from adjacent power modules. IC Role / Device Role / Timing Role: Primary slave capacitive controller handling mutual-capacitance scanning, baseline drift compensation, and gesture reporting. Use Value: 120 Hz refresh and 150 kHz TX frequency maintain responsiveness and accuracy despite engine-on EMI and glove use. | Use Scenario: 7–12-inch digital gauge cluster with curved glass overlay, exposed to wide thermal cycling and condensation. IC Role / Device Role / Timing Role: Secondary touch controller managing small-area controls (mode toggles, menu navigation) with ultra-low latency interrupt response. Use Value: DualSense water rejection ensures operability during rain-induced condensation; -40°C to +105°C rating guarantees reliability across cabin zones. |
| Head-Up Display (HUD) Touch Overlay | Passenger Seat Control Panel |
Use Scenario: Compact projected HUD with transparent conductive film overlay, subject to optical interference and low-signal coupling. IC Role / Device Role / Timing Role: High-SNR slave controller using 17-phase multi-phase TX to boost effective drive voltage to 20 V for improved signal integrity. Use Value: 20-V effective drive and integrated DSP enable stable detection through optically complex stackups with minimal false touches. | Use Scenario: Multi-zone rear-seat control panel with PET substrate, metal mesh electrodes, and frequent glove usage in cold climates. IC Role / Device Role / Timing Role: Dedicated glove-optimized controller performing automatic mode switching between bare-finger and thick-glove profiles. Use Value: Confirmed ≤5-mm glove support and automatic baseline tracking eliminate manual calibration and ensure consistent UX year-round. |
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 | Same silicon, -40°C to +85°C temperature grade (Automotive-A vs. Automotive-S) | Limited to non-under-hood locations; unsuitable for high-ambient zones like center stack near HVAC vents | Select when cost sensitivity outweighs extended thermal margin requirements |
| MTCH6302-I/SS | Microchip 10-bit ADC, 64-channel max, no integrated DSP or glove/water algorithms | Requires host-side firmware for water/glove handling; lacks AutoArmor and DualSense IP blocks | Choose only for non-automotive, low-EMI consumer panels where Infineon's automotive IP is unnecessary |
Compared with CYAT847AZS98-42002, the CYAT847AZA98-42002 trades thermal robustness for lower cost, while the MTCH6302-I/SS lacks hardware-accelerated automotive features entirely-requiring significant host-CPU overhead and limiting suitability to benign environments.
Availability
CYAT847AZS98-42002 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, and passenger control panels requiring stable component supply, AEC-Q100 compliance, and extended temperature operation.
Supply support for CYAT847AZS98-42002 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 microcontrollers, and sensing 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 in automotive cockpits-including infotainment, instrumentation, and HUD interfaces.
FAQ
What is the maximum supported electrode count for CYAT847AZS98-42002?
The CYAT847AZS98-42002 supports up to 296 sense pins and 10,320 intersections, enabling large-format touchscreens up to 35-inch diagonal with fine electrode pitch (e.g., 6 mm). This capacity is fixed in silicon and confirmed in the official Infineon datasheet summary (002-35956 Rev. **).
Does CYAT847AZS98-42002 require an external crystal or oscillator?
No external crystal is required. The device integrates a precision internal oscillator for system timing and supports optional external clock input for synchronization in multi-chip configurations. All timing-critical functions-including TX frequency generation and ADC sampling-are derived from on-die PLLs.
Can CYAT847AZS98-42002 operate with only one power supply rail?
No. It requires three independent supplies: 1.71–1.95 V for core logic, 3.0–5.5 V for I/O and digital peripherals, and 3.0–5.5 V for analog circuitry (VDDA). Separation of VDDA and VDDIO is mandatory to meet SNR and AEC-Q100 EMC requirements.
Is Android driver support included out-of-the-box?
Yes. Infineon provides a certified Android HAL (Hardware Abstraction Layer) driver package compatible with Android 9–13, including touch coordinate mapping, gesture parsing, and power management hooks. Integration requires minimal platform-specific adaptation per the MTK (Manufacturing Test Kit) documentation.
CYAT847AZS98-42002 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 ~ 105°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 128-TQFP (14x20)
CYAT847AZS98-42002 FAQ
1.How can I place an order for CYAT847AZS98-42002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT847AZS98-42002 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 CYAT847AZS98-42002 reliable?
The price and inventory of CYAT847AZS98-42002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT847AZS98-42002 is usually 5 days.
3.What payment methods are accepted for CYAT847AZS98-42002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT847AZS98-42002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT847AZS98-42002?
CYAT847AZS98-42002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT847AZS98-42002 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 CYAT847AZS98-42002?
For technical support, including CYAT847AZS98-42002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT847AZS98-42002 requirements.
6.How does Aetrix verify that CYAT847AZS98-42002 is sourced from the original manufacturer or authorized distributors?
All CYAT847AZS98-42002 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 CYAT847AZS98-42002 meets industry standards.
7.What is the process for return or replacement of CYAT847AZS98-42002?
All CYAT847AZS98-42002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT847AZS98-42002, 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 CYAT847AZS98-42002 part is unused and in its original packaging.
Return procedure for CYAT847AZS98-42002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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