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Infineon Technologies CYAT847AZS72-22002
- Part No.:
- CYAT847AZS72-22002
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 100-LQFP
- Datasheet:
-
CYAT847AZS72-22002.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
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Product details
Overview
CYAT847AZS72-22002 from Infineon is an AEC-Q100 qualified automotive-grade capacitive touchscreen controller (PSoC™ Automotive Multitouch Gen 7XL), functioning as a slave chip in multi-chip touch systems for large displays. It supports up to 72 sense I/Os, operates across -40°C to 105°C (Automotive-S grade), delivers up to 120 Hz refresh rate, and enables wet-finger and thin-glove (≤1 mm) tracking via DualSense and AutoArmor technologies - deployed in infotainment touchscreens for premium vehicles.
For engineers reviewing the CYAT847AZS72-22002 datasheet, CYAT847AZS72-22002 pinout, CYAT847AZS72-22002 application, or CYAT847AZS72-22002 equivalent, key selection criteria include its 100-pin TQFP package, glove/water rejection capability, I²C slave interface (up to 1 Mbps), 192-channel ADC architecture, and role as a slave controller in scalable multi-chip touchscreen solutions.
Technical Context
This device is a dedicated slave controller in Infineon's Gen 7XL multitouch architecture, designed to offload sensing and preprocessing from the master (e.g., CYAT847AZA72-22002). It integrates 192 independent ADC channels, supports high-order multi-phase TX (up to 150 kHz), and implements register-configurable noise-suppression algorithms optimized for display-integrated EMI environments.
Its DualSense architecture enables simultaneous self-capacitive and mutual-capacitive measurement modes, while AutoArmor dynamically adjusts emission profiles to improve both EMC immunity and emissions. The device relies on external bootloader for field upgrades and requires host-initiated configuration over I²C - no standalone operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 72 pins - defines maximum electrode count for segmented sensor routing in slave-only configurations |
| Operating Temp Range | -40°C to +105°C (Automotive-S) - validated for under-hood or dashboard-mounted display modules |
| Refresh Rate | Up to 120 Hz - enables responsive touch in high-motion vehicle interfaces without perceptible latency |
| I²C Interface Speed | Up to 1 Mbps - supports low-latency command/response communication with host MCU in real-time touch systems |
| ADC Channels | 192 independent channels - allows single-pass long-side scanning for faster frame completion and noise averaging |
| TX Frequency Range | Up to 150 kHz - configurable multi-phase transmission improves SNR in noisy automotive electrical environments |
| Power Supply | 1.71–1.95 V (core), 3.0–5.5 V (I/O & analog) - dual-rail support enables integration with mixed-voltage display subsystems |
Pinout & Package
Package: 100-pin TQFP (14 × 14 × 1.4 mm, 0.5-mm pitch), RoHS-compliant, tray-packaged.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 3.0–5.5 V rail powering GPIOs, I²C interface, and internal logic buffers |
| VDDA | Analog supply | 3.0–5.5 V clean rail for ADC reference and sensor TX/RX circuitry |
| VSS | Ground reference | Common return path for analog/digital domains; requires separate plane routing per datasheet layout guidelines |
| SCL / SDA | I²C slave interface | Configured as open-drain inputs/outputs; supports standard/fast/fast-plus modes up to 1 Mbps |
| SENSE[0:71] | Capsense electrode interface | 72 bidirectional analog pins supporting mutual/self-capacitance measurement; routed directly to sensor traces |
| RESET_N | Active-low reset input | Asynchronous hardware reset; must be held low ≥10 µs for full initialization sequence |
Key Features
| Feature | Design Value |
|---|---|
| DualSense architecture | Simultaneous self- and mutual-capacitance measurement per electrode pair - enables robust wet-finger and stylus detection without mode switching |
| AutoArmor EMI management | Dynamically modulates TX waveform shape and timing to reduce radiated emissions while improving noise immunity during display updates |
| Glove support (thin) | Tracks fingers through ≤1-mm-thick gloves using adaptive baseline tracking and enhanced SNR from 17-phase TX |
| Water rejection | Discriminates water droplets from intentional touch via temporal capacitance delta analysis - prevents false triggers on wet surfaces |
| Manufacturing test kit (MTK) support | Enables factory calibration and sensor validation via standardized test commands over I²C - reduces production line setup time |
Applications
| Infotainment Display Interface | Driver Information Cluster (DIC) |
|---|---|
Use Scenario: 12–17-inch LCD/AMOLED touchscreen in center-stack infotainment system with ambient light, EMI, and condensation exposure. IC Role / Device Role / Timing Role: Slave controller handling bottom-half electrode scanning and preprocessing; synchronized to master via I²C handshake and timestamped frame alignment. Use Value: Enables 10-finger gesture recognition at 120 Hz while rejecting rain-splash artifacts and maintaining responsiveness with thin winter gloves. | Use Scenario: Curved digital instrument cluster with integrated touch zones for driver-configurable HUD controls and warning acknowledgments. IC Role / Device Role / Timing Role: Dedicated slave unit managing curved edge sensors - offloads high-noise scanning from main cluster MCU to ensure deterministic response latency. Use Value: Supports reliable touch detection at -40°C startup and 105°C sustained operation, critical for thermal cycling compliance in sealed clusters. |
| Passenger Seat Control Panel | Rear-Seat Entertainment (RSE) System |
Use Scenario: Multi-zone capacitive panel embedded in armrest or door trim for seat/mirror/climate control with frequent moisture exposure. IC Role / Device Role / Timing Role: Standalone slave node operating in low-power scan-suspend mode between touches; wakes on proximity-triggered baseline drift. Use Value: Maintains accurate finger localization despite sweat or beverage spills using water-rejection algorithm and automatic baseline recalibration. | Use Scenario: 10–15-inch rear-seat touchscreen shared by multiple passengers, requiring simultaneous multi-user input and glove compatibility. IC Role / Device Role / Timing Role: Secondary slave in 2-chip configuration - handles right-half sensor matrix while master manages left half and host coordination. Use Value: Delivers consistent 10-finger tracking across varying glove thicknesses (1–5 mm) without manual mode selection or performance 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 |
|---|---|---|---|
| CYAT847AZA72-22002 | Same 72-sense I/O, 100-pin TQFP, but rated for -40°C to +85°C (Automotive-A) | Limited to cabin-ambient applications; unsuitable for under-dash or near-engine locations | Select when thermal budget excludes 105°C operation and cost sensitivity favors A-grade qualification |
| CYAT847AZS88-42002 | 128-pin TQFP, 88-sense I/O, same -40°C to +105°C rating | Supports larger or higher-resolution touch areas; requires PCB redesign for pin count and footprint | Choose when scaling beyond 72 electrodes is needed and board space allows 14×20 mm package |
Compared with CYAT847AZA72-22002, this part adds extended temperature resilience for harsher mounting positions; versus CYAT847AZS88-42002, it trades electrode count for compactness and lower interconnect complexity in mid-size displays.
Availability
CYAT847AZS72-22002 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, and passenger control panels requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CYAT847AZS72-22002 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
This device belongs to the PSoC™ Automotive Multitouch Generation 7XL product line, engineered specifically for scalable, high-SNR capacitive touch systems in safety-critical and thermally demanding automotive interiors.
FAQ
Is CYAT847AZS72-22002 a standalone touchscreen controller?
No. It functions exclusively as a slave controller in multi-chip architectures and requires a master device (e.g., CYAT847AZA72-22002) for system initialization, coordinate fusion, and host communication. It lacks boot ROM, flash memory, and host interface firmware - all configuration and data aggregation occur externally.
Does this part support Android natively?
Yes - Infineon provides certified Android touch drivers compatible with CYAT847AZS72-22002 in multi-chip configurations. The driver stack abstracts slave/master partitioning and exposes unified touch events via standard Linux input subsystem, validated on Android 10–13 platforms.
What is the purpose of the 192 ADC channels with only 72 sense pins?
The 192 ADC channels enable parallel acquisition across multiple electrode combinations - for example, simultaneous sampling of row/column intersections in mutual-capacitance mode or concurrent self-capacitance measurements on grouped sense lines - accelerating full-frame scan time and enabling advanced noise filtering without increasing latency.
Can CYAT847AZS72-22002 operate without the master chip?
No. It has no internal oscillator, nonvolatile configuration storage, or autonomous firmware. All clocking, register setup, and frame sequencing depend on I²C commands and synchronization signals from the designated master controller; attempting standalone use results in no functional output.
CYAT847AZS72-22002 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 ~ 105°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 100-TQFP (14x14)
CYAT847AZS72-22002 FAQ
1.How can I place an order for CYAT847AZS72-22002 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT847AZS72-22002 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 CYAT847AZS72-22002 reliable?
The price and inventory of CYAT847AZS72-22002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT847AZS72-22002 is usually 5 days.
3.What payment methods are accepted for CYAT847AZS72-22002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT847AZS72-22002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT847AZS72-22002?
CYAT847AZS72-22002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT847AZS72-22002 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 CYAT847AZS72-22002?
For technical support, including CYAT847AZS72-22002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT847AZS72-22002 requirements.
6.How does Aetrix verify that CYAT847AZS72-22002 is sourced from the original manufacturer or authorized distributors?
All CYAT847AZS72-22002 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 CYAT847AZS72-22002 meets industry standards.
7.What is the process for return or replacement of CYAT847AZS72-22002?
All CYAT847AZS72-22002 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT847AZS72-22002, 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 CYAT847AZS72-22002 part is unused and in its original packaging.
Return procedure for CYAT847AZS72-22002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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