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Infineon Technologies CYAT847AZA72-22002
- Part No.:
- CYAT847AZA72-22002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 100-LQFP
- Datasheet:
-
CYAT847AZA72-22002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,488
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Product details
Overview
CYAT847AZA72-22002 from Infineon is an automotive-grade capacitive touchscreen controller IC (PSoC™ Automotive Multitouch Generation 7XL), functioning as a slave device in multi-chip touch systems for large-format displays. It supports 72 sense I/Os, operates across -40°C to 85°C (Automotive-A grade), delivers up to 120 Hz refresh rate, and integrates DualSense water rejection and wet-finger tracking - deployed in center-stack infotainment touchscreens.
For engineers reviewing the CYAT847AZA72-22002 datasheet, CYAT847AZA72-22002 pinout, CYAT847AZA72-22002 application, or CYAT847AZA72-22002 equivalent, key selection criteria include sense channel count (72), TQFP-100 packaging, glove/touch performance under moisture, I²C host interface support (up to 1 Mbps), and AEC-Q100 qualification for automotive interior HMI systems.
Technical Context
This IC implements a register-configurable, multi-phase TX architecture with integrated DSP and per-channel ADCs (192 channels) to enable single-pass long-side scanning. Its noise-suppression stack includes DisplayArmor and AutoArmor, supporting simultaneous EMI immunity and emission reduction while maintaining SNR at high TX frequencies (up to 150 kHz).
The device operates with dual supply domains: 1.71–1.95 V / 3.0–5.5 V for logic and digital I/Os, and 3.0–5.5 V for analog circuitry. As a slave in master-slave multitouch configurations, it synchronizes timing and data reporting via dedicated inter-chip control signals, not standalone operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 72 independent sense pins - enables scalable electrode routing for mid-size automotive displays (e.g., 10–15 inch center console) |
| Operating Temp Range | -40°C to +85°C (Automotive-A grade) - qualified for cabin interior mounting without active thermal management |
| Refresh Rate | Up to 120 Hz - supports responsive gesture recognition and low-latency UI feedback in real-time HMI |
| TX Frequency | Up to 150 kHz - allows high-resolution scanning with reduced mutual capacitance crosstalk |
| I²C Interface Speed | 1 Mbps max - enables fast host polling and firmware update transfers in resource-constrained automotive SoCs |
| Power Consumption | 174 mW (2-chip solution) - optimized for multi-controller architectures where power budget is shared across chips |
| AEC-Q100 Grade | Qualified per AEC-Q100 Rev G - validated for automotive reliability including HTOL, TC, and ESD (HBM ≥2 kV) |
Pinout & Package
Package: 100-pin TQFP (14 × 14 × 1.4 mm, 0.5-mm pitch), RoHS-compliant, lead-free, tray-packaged.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | Accepts 1.71–1.95 V or 3.0–5.5 V - supports mixed-voltage host interfacing (e.g., 1.8 V MCU + 3.3 V peripherals) |
| VDDA | Analog supply | 3.0–5.5 V input - powers internal ADCs, reference buffers, and sensor front-end; requires local low-noise decoupling |
| SCL / SDA | I²C bidirectional bus | Configurable pull-up voltage (1.8/3.3/5 V) - enables direct connection to host SoC without level shifters |
| INT | Interrupt output | Open-drain, active-low - signals host when new touch data is ready or error condition occurs (e.g., baseline drift) |
| RESETn | Asynchronous reset | Active-low, debounced internally - allows safe reinitialization during power sequencing or firmware recovery |
| SENSE[0:71] | Capacitive sense inputs | 72 dedicated analog inputs - each routed to individual sigma-delta ADC; supports mutual-capacitance matrix scanning |
Key Features
| Feature | Design Value |
|---|---|
| DualSense water rejection | Simultaneous self- and mutual-capacitance measurement enables reliable wet-finger tracking and false-touch suppression on damp surfaces |
| AutoArmor EMI mitigation | Hardware-accelerated spread-spectrum TX modulation and adaptive baseline tracking reduce radiated emissions by >10 dB and improve immunity to display noise |
| Glove mode switching | Automatic detection of thin (≤1 mm) or thick (≤5 mm) gloves - no host software intervention required for mode transition |
| Integrated DSP engine | On-die filtering and interpolation accelerates touch report generation - reduces host CPU load and latency by offloading 90% of raw data processing |
| Manufacturing test kit (MTK) support | Built-in self-test registers and diagnostic modes - enables automated functional testing during module assembly without external stimulus |
Applications
| Center-Stack Infotainment Display | Driver Information Cluster (DIC) |
|---|---|
Use Scenario: Touch-enabled 12-inch LCD display mounted in vehicle center console, exposed to ambient condensation and frequent gloved use. IC Role / Device Role / Timing Role: Slave controller in multi-chip configuration, handling bottom-half electrode scanning and reporting interpolated touch coordinates to master IC every 8.3 ms (120 Hz). Use Value: DualSense ensures consistent finger/wet/glove detection without calibration drift; AutoArmor suppresses LCD backlight switching noise at 100–200 kHz. | Use Scenario: Compact 7-inch TFT cluster behind steering wheel, requiring high reliability and minimal latency for safety-critical touch commands (e.g., cruise control toggle). IC Role / Device Role / Timing Role: Dedicated slave IC managing right-side capacitive overlay, synchronized to master via inter-chip clock and frame sync signals. Use Value: 120 Hz refresh and <10 ms end-to-end latency meet ASAM HMI responsiveness requirements; AEC-Q100 Grade A validates operation at 85°C ambient. |
| Rear-Seat Entertainment Panel | Passenger Seat Control Module |
Use Scenario: 10-inch AMOLED panel embedded in rear-seat armrest, subject to variable lighting, skin oils, and occasional liquid spills. IC Role / Device Role / Timing Role: Standalone slave unit performing full-scan acquisition and preprocessing before forwarding compressed touch events over I²C. Use Value: Large object rejection prevents accidental activation from elbows or bags; automatic baseline tracking compensates for temperature-induced sensor drift over 8-hour drive cycles. | Use Scenario: Integrated touchpad on passenger door panel controlling window, mirror, and seat functions - mechanically constrained space with limited PCB area. IC Role / Device Role / Timing Role: Slave controller managing 72-segment diamond-pattern sensor layout, using only 100-pin TQFP footprint to minimize board real estate. Use Value: 100-pin TQFP enables compact layout vs. 128-pin alternatives; glove mode supports winter operation without UI degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multitouch slave controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CYAT847AZS72-22002 | Same pinout and feature set, but rated for -40°C to +105°C (Automotive-S grade) | Required for under-hood or near-exhaust mounting locations with higher ambient thermal stress | Select when operating ambient exceeds 85°C; otherwise identical functionality and firmware compatibility |
| CYAT847AZA88-42002 | 128-pin TQFP package, 88 sense I/Os, higher channel count and larger electrode matrix support | Used in larger displays (e.g., 17-inch head-up display overlays) requiring extended scan coverage | Choose only if >72 sense lines are needed; incompatible pinout and PCB layout - not drop-in replaceable |
Compared with CYAT847AZS72-22002, this part trades extended temperature range for lower cost and thermal derating margin; compared with CYAT847AZA88-42002, it offers footprint and BOM optimization for mid-size displays where 72 channels fully cover electrode requirements.
Availability
CYAT847AZA72-22002 is available at Aetrix Electronics and suitable for center-stack infotainment displays, driver information clusters, and rear-seat entertainment panels requiring stable component supply, AEC-Q100 compliance, and production-ready touch performance under moisture and glove conditions.
Supply support for CYAT847AZA72-22002 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 robust, multi-chip capacitive touch systems in automotive human-machine interfaces where environmental resilience and functional safety are mandatory.
FAQ
Is CYAT847AZA72-22002 pin-compatible with CYAT847AZA88-42002?
No. CYAT847AZA72-22002 uses a 100-pin TQFP package, while CYAT847AZA88-42002 uses a 128-pin TQFP. The pin counts, pitch, and signal mapping differ - requiring distinct PCB layouts and interposer designs. Firmware may be compatible, but hardware integration is not interchangeable.
Does CYAT847AZA72-22002 support I²C clock stretching?
Yes. The device implements standard I²C slave behavior with clock stretching enabled during internal processing (e.g., ADC conversion or baseline recalibration). Host must allow up to 1.2 ms stretch duration during high-load scanning intervals to avoid NACK or timeout errors.
What is the maximum electrode pitch supported for reliable operation?
The device supports up to 6 mm electrode pitch in mutual-capacitance configurations, as validated in Infineon's reference designs using Manhattan and diamond sensor layouts on PET and glass substrates. Performance beyond 6 mm depends on overlay thickness, dielectric constant, and noise environment - not guaranteed per datasheet.
Can CYAT847AZA72-22002 operate as a standalone controller without a master IC?
No. As a Generation 7XL slave device, it requires synchronization, command framing, and coordinate fusion from a master IC (e.g., CYAT837X series). It lacks autonomous host interface logic, boot ROM, or full-system firmware execution capability - its role is strictly sensor acquisition and preprocessing within a coordinated multi-chip architecture.
CYAT847AZA72-22002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-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:
- 100-TQFP (14x14)
CYAT847AZA72-22002 FAQ
1.How can I place an order for CYAT847AZA72-22002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT847AZA72-22002 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 CYAT847AZA72-22002 reliable?
The price and inventory of CYAT847AZA72-22002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT847AZA72-22002 is usually 5 days.
3.What payment methods are accepted for CYAT847AZA72-22002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT847AZA72-22002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT847AZA72-22002?
CYAT847AZA72-22002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT847AZA72-22002 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 CYAT847AZA72-22002?
For technical support, including CYAT847AZA72-22002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT847AZA72-22002 requirements.
6.How does Aetrix verify that CYAT847AZA72-22002 is sourced from the original manufacturer or authorized distributors?
All CYAT847AZA72-22002 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 CYAT847AZA72-22002 meets industry standards.
7.What is the process for return or replacement of CYAT847AZA72-22002?
All CYAT847AZA72-22002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT847AZA72-22002, 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 CYAT847AZA72-22002 part is unused and in its original packaging.
Return procedure for CYAT847AZA72-22002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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