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Infineon Technologies CYAT847AZA88-42002
- Part No.:
- CYAT847AZA88-42002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 128-LQFP
- Datasheet:
-
CYAT847AZA88-42002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,908
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Product details
Overview
CYAT847AZA88-42002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller (PSoC™ Automotive Multitouch Generation 7XL), functioning as a slave chip in multi-chip touch systems for large displays. It supports up to 88 sense I/Os, 10-finger tracking with ≤1-mm thin gloves, wet-finger rejection via DualSense, and operates across -40°C to +85°C ambient temperature.
For engineers reviewing the CYAT847AZA88-42002 datasheet, CYAT847AZA88-42002 pinout, CYAT847AZA88-42002 application, or CYAT847AZA88-42002 equivalent, key selection criteria include glove/water robustness, I²C slave interface (up to 1 Mbps), 128-pin TQFP package, SNR-optimized multi-phase TX drive, and integration into Gen7XL master-slave touchscreen architectures.
Technical Context
This device is a dedicated slave controller in Infineon's PSoC™ Automotive Multitouch Generation 7XL multichip architecture-paired with a master (e.g., CYAT837X) to scale sensing capacity beyond single-chip limits. It implements register-configurable capacitive sensing with integrated DSP per channel, enabling single-pass long-side scanning across up to 88 sense pins.
It delivers noise-suppression via DisplayArmor and AutoArmor, supports dual-sensing modes (DualSense) for simultaneous water/glove discrimination, and uses high-order multi-phase TX (up to 150 kHz) with 5-V VCCTX to achieve effective 20-V drive for enhanced SNR-critical for automotive displays exposed to EMI and environmental variability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 88 independent sense channels-enables scalable electrode routing for mid-size automotive touchscreens (e.g., 12–24 inch). |
| Operating Temp Range | -40°C to +85°C (Automotive-A grade)-qualified for instrument cluster and center console deployment without derating. |
| Host Interface | I²C slave, up to 1 Mbps-supports low-latency command/response communication with master MCU or host processor. |
| TX Drive Capability | 5-V VCCTX with 17-phase multi-phase TX-delivers effective 20-V differential drive for improved SNR in noisy automotive environments. |
| Touch Reporting | Up to 10 fingers, including fingernail and ≤1-mm thin-glove support-meets OEM human-machine interface (HMI) usability requirements. |
| Power Supply | 1.71–1.95 V core / 3.0–5.5 V I/O & analog-enables flexible power domain partitioning in automotive SoC subsystems. |
| Refresh Rate | Configurable up to 120 Hz-supports responsive UI interaction while allowing trade-off with power consumption (e.g., 60 Hz for lower power). |
Pinout & Package
Package: 128-pin TQFP (14 × 20 × 1.4 mm, 0.5-mm pitch), RoHS-compliant, tray or tape-and-reel delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 3.0–5.5 V input powering GPIOs and I²C interface-must be decoupled locally for EMI resilience. |
| VDDA | Analog supply | 3.0–5.5 V input for ADCs and sensor front-end-requires separate low-noise LDO and filtering. |
| VDDCORE | Core logic supply | 1.71–1.95 V input for Cortex-M CPU and digital logic-tight regulation critical for timing stability. |
| SCL, SDA | I²C slave interface | Open-drain bidirectional lines-require pull-ups to VDDIO; support standard/fast/fast-plus modes up to 1 Mbps. |
| SENSE[0:87] | Capsense electrode inputs | 88 dedicated analog input pins-each connects to one touchscreen electrode trace; routed with controlled impedance and guard traces. |
| VCCTX | TX voltage reference | 5-V supply for multi-phase TX driver-directly sets peak-to-peak TX amplitude and SNR headroom. |
Key Features
| Feature | Design Value |
|---|---|
| DualSense water/glove discrimination | Simultaneous capacitive and mutual-capacitive sensing enables reliable operation under rain, condensation, or thin-glove use without mode switching delay. |
| AutoArmor EMI mitigation | Integrated hardware-level emission suppression and immunity enhancement-reduces need for external shielding and board-level filtering. |
| Single-pass long-side scanning | 192-channel parallel ADC architecture allows full 88-sense-pin acquisition in one scan cycle-cuts latency and improves motion tracking fidelity. |
| Manufacturing test kit (MTK) support | On-chip self-test routines and diagnostic registers enable automated functional testing during PCBA burn-in and final QA. |
| Android driver compatibility | Pre-validated HAL layer integration-reduces bring-up time for infotainment systems targeting Android Automotive OS. |
Applications
| Instrument Cluster HMI | Center Console Touchscreen |
|---|---|
Use Scenario: Driver interacts with digital gauge cluster via swipe, tap, and pinch gestures under vibration, sunlight, and occasional glove use. IC Role / Device Role / Timing Role: Slave controller handling bottom-half electrode scanning in split-sensor architecture-synchronized to master via I²C handshake. Use Value: Thin-glove tracking (≤1 mm) and automatic baseline drift compensation maintain responsiveness despite cabin temperature swings (-40°C to +85°C). | Use Scenario: Passenger controls HVAC, media, and navigation on a 17-inch AMOLED center display exposed to ambient moisture and finger oils. IC Role / Device Role / Timing Role: Dedicated slave unit managing high-density electrode grid (88 pins) with DualSense-enabled wet-finger rejection and large-object false-touch suppression. Use Value: Water rejection and 120-Hz refresh rate ensure uninterrupted gesture recognition during rain exposure or rapid multi-finger input. |
| Rear Seat Entertainment | Head-Up Display (HUD) Touch Overlay |
Use Scenario: Child or passenger operates rear-seat tablet-style interface mounted on seatback, subject to accidental palm contact and variable lighting. IC Role / Device Role / Timing Role: Slave node in distributed Gen7XL system-offloading sensing computation from master to enable scalable multi-display coordination. Use Value: Large object rejection and fingernail tracking prevent misregistration from resting hands or stylus-like input, improving UI reliability. | Use Scenario: Driver touches semi-transparent HUD combiner glass to adjust projection brightness or route navigation-requiring ultra-low profile integration and optical clarity. IC Role / Device Role / Timing Role: Low-profile slave controller interfacing with SOL (sensor-on-lens) stackup-driving fine-pitch electrodes without interfering with optical path. Use Value: 6-mm electrode pitch support and 16:10 aspect ratio optimization enable seamless integration into curved, narrow-form-factor HUD overlays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multitouch slave controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT847AZS88-42002 | Same pinout and feature set, but rated for -40°C to +105°C (Automotive-S grade) | Required for under-hood or near-engine infotainment modules where ambient exceeds 85°C | Select when extended temperature operation is mandated by mechanical placement-not for standard cabin applications. |
| CYAT837AZA88-42002 | Identical package and temperature rating, but functions as master controller with integrated bootloader and host interface logic | Used as system coordinator in Gen7XL architecture-handles I²C host comms, firmware updates, and slave synchronization | Choose only if replacing a master node; not interchangeable as slave due to different internal control hierarchy. |
Compared with CYAT847AZA88-42002, the S-grade variant offers higher thermal margin at no functional cost, while the CYAT837AZA88-42002 serves a distinct architectural role-making direct substitution invalid without redesigning the master-slave topology and firmware partitioning.
Availability
CYAT847AZA88-42002 is available at Aetrix Electronics and suitable for automotive instrument clusters, center console touchscreens, and rear-seat entertainment systems requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for CYAT847AZA88-42002 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 ICs-with leadership in AEC-Q100-qualified microcontrollers and analog solutions.
CYAT847AZA88-42002 belongs to the PSoC™ Automotive Multitouch Generation 7XL product line, designed specifically for scalable, noise-resilient capacitive touch sensing in safety-critical automotive HMIs-including implementations requiring glove/water robustness and multi-chip electrode expansion.
FAQ
Is CYAT847AZA88-42002 a standalone touchscreen controller?
No. It is a slave-only device in Infineon's Gen7XL multichip architecture and requires pairing with a master controller (e.g., CYAT837X) to handle host communication, firmware updates, and system coordination. It cannot operate independently as a complete touch solution.
What distinguishes CYAT847AZA88-42002 from CYAT837AZA88-42002?
CYAT847AZA88-42002 is a slave controller with 88 sense I/Os and no built-in host interface logic, whereas CYAT837AZA88-42002 is the master-featuring integrated bootloader, Android driver stack, and full I²C host protocol handling. Their roles are architecturally fixed and non-interchangeable.
Does CYAT847AZA88-42002 support I²C clock stretching?
Yes. As an I²C slave, it supports clock stretching during ADC conversion and data processing cycles to prevent overrun when host read requests exceed internal scan completion timing-ensuring deterministic data integrity without packet loss.
Can CYAT847AZA88-42002 drive metal-mesh sensors?
Yes. The datasheet explicitly confirms support for metal-mesh sensor stackups, leveraging its high-drive multi-phase TX capability and adaptive baseline tracking to compensate for mesh-specific parasitic capacitance and signal attenuation.
CYAT847AZA88-42002 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)
CYAT847AZA88-42002 FAQ
1.How can I place an order for CYAT847AZA88-42002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT847AZA88-42002 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 CYAT847AZA88-42002 reliable?
The price and inventory of CYAT847AZA88-42002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT847AZA88-42002 is usually 5 days.
3.What payment methods are accepted for CYAT847AZA88-42002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT847AZA88-42002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT847AZA88-42002?
CYAT847AZA88-42002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT847AZA88-42002 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 CYAT847AZA88-42002?
For technical support, including CYAT847AZA88-42002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT847AZA88-42002 requirements.
6.How does Aetrix verify that CYAT847AZA88-42002 is sourced from the original manufacturer or authorized distributors?
All CYAT847AZA88-42002 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 CYAT847AZA88-42002 meets industry standards.
7.What is the process for return or replacement of CYAT847AZA88-42002?
All CYAT847AZA88-42002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT847AZA88-42002, 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 CYAT847AZA88-42002 part is unused and in its original packaging.
Return procedure for CYAT847AZA88-42002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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