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Infineon Technologies CYAT61652-56LWA41
- Part No.:
- CYAT61652-56LWA41
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CYAT61652-56LWA41.pdf
- Description:
- TrueTouch
- Quantity:
- Payment:
- Shipping:
Inventory:1,065
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Product details
Overview
CYAT61652-56LWA41 from Infineon Technologies is a capacitive touch controller IC designed for single-chip multi-touch solutions in consumer and industrial human-machine interfaces. It integrates 56-channel analog front-end, on-chip firmware, and I²C/USB host interface, supporting up to 10 simultaneous touch points with 12-bit resolution and <10ms report rate. Used in interactive kiosks, medical panel displays, and industrial HMIs requiring robust noise immunity and glove operation.
For engineers reviewing the CYAT61652-56LWA41 datasheet, CYAT61652-56LWA41 pinout, CYAT61652-56LWA41 application, or CYAT61652-56LWA41 equivalent, key selection criteria include channel count, mutual-capacitance architecture, integrated firmware version, ESD tolerance (±15 kV air), and host interface compatibility with ARM Cortex-M or Linux-based controllers.
Technical Context
The CYAT61652-56LWA41 implements a mutual-capacitance sensing architecture with programmable scan timing and adaptive baseline tracking. It features integrated 56-channel TX/RX switch matrix, 12-bit SAR ADC per channel, and hardware-accelerated centroid calculation engine.
It supports both I²C (up to 400 kHz) and full-speed USB 2.0 (12 Mbps) host communication, with configurable interrupt signaling and built-in self-test (BIST) for sensor integrity validation. Firmware is field-upgradable via I²C or USB without external programming hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 56-channel TX/RX matrix enabling large-format touch panels up to 15.6″ diagonal |
| Max Simultaneous Touches | 10 independent touch points with true multi-finger gesture support |
| ADC Resolution | 12-bit per channel for high dynamic range and fine-grained touch sensitivity control |
| Report Rate | <10 ms at full 10-finger load, ensuring responsive UI interaction |
| ESD Rating | ±15 kV air discharge per IEC 61000-4-2, eliminating need for external TVS on touch lines |
| Host Interface | I²C (400 kHz) and USB 2.0 full-speed (12 Mbps) with dual-mode auto-detection |
Pinout & Package
Package: 64-pin QFN (9 mm × 9 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | 1.8 V ±5 % for digital interface logic; decoupling required per pin |
| VDDA | Analog supply rail | 3.3 V ±5 % for ADC and analog front-end; separate LDO recommended |
| SCL / SDA | I²C bidirectional bus | Open-drain, 3.3 V tolerant; internal pull-ups disabled by default |
| USB_DP / USB_DM | USB differential pair | Full-speed compliant; requires 27 Ω series termination per line |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready |
| RESET_N | Hardware reset input | Low pulse ≥10 µs initiates cold boot and firmware reload |
| TX0–TX15 | Transmit electrode drivers | Configurable as TX or GPIO; drive strength programmable per channel |
| RX0–RX39 | Receive electrode inputs | High-impedance analog inputs; support shielded routing for noise reduction |
Key Features
| Feature | Design Value |
|---|---|
| Glove and wet-finger operation | Supported via adaptive thresholding and signal-to-noise ratio enhancement algorithms |
| Integrated BIST | Automated sensor open/short detection during power-up and runtime diagnostics |
| Programmable scan configuration | Adjustable TX/RX active channel count and scan order to optimize frame rate vs. power |
| Firmware upgrade over interface | In-field updates via I²C or USB without external programmer or flash tool |
| Noise suppression engine | Real-time correlated double sampling and frequency hopping against 50/60 Hz and RF interference |
Applications
| Interactive Kiosk | Medical Diagnostic Panel |
|---|---|
Use Scenario: Public-facing self-service terminal in hospitals or retail environments with high ambient light and frequent glove use. IC Role / Device Role / Timing Role: Primary touch controller managing 55 cm × 35 cm projected-capacitive overlay with real-time gesture decoding. Use Value: Enables reliable multi-touch operation under clinical gloves (≥1.5 mm thick) and withstands repeated alcohol wipe cleaning cycles. | Use Scenario: Touch-enabled ultrasound or MRI console requiring EMI resilience near high-power RF sources. IC Role / Device Role / Timing Role: Dedicated HMI controller isolating touch processing from main SoC to prevent timing jitter in imaging subsystems. Use Value: Achieves >60 dB common-mode rejection at 13.56 MHz RFID and 2.4 GHz Bluetooth bands via synchronized scanning. |
| Industrial Control Panel | Smart Building Dashboard |
Use Scenario: Factory-floor HMI operating in temperature range −40 °C to +85 °C with oil and dust exposure. IC Role / Device Role / Timing Role: Ruggedized touch interface with metal-over-capacitive (MOC) support and IP65-rated overlay integration. Use Value: Maintains stable baseline tracking across thermal cycling and compensates for conductive contamination on cover lens. | Use Scenario: Wall-mounted building automation interface with ambient light variation from 10 lux to 10,000 lux. IC Role / Device Role / Timing Role: Ambient-adaptive controller dynamically adjusting gain and integration time per frame. Use Value: Eliminates manual brightness calibration; achieves consistent touch response under direct sunlight and dim corridor lighting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-touch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip maXTouch MXT2113T | 48-channel, 8-bit resolution, no integrated USB PHY; requires external transceiver | Limited to smaller panels (<12″); lower ESD rating (±8 kV) | Preferred for cost-sensitive designs where USB is not required and panel size is constrained |
| STMicroelectronics STMT320 | 64-channel, 16-bit ADC, SPI-only interface; no native I²C/USB dual mode | Requires external level-shifting for 1.8 V I/O domains; higher power in continuous scan mode | Chosen when higher resolution and SPI-native host architecture outweigh interface flexibility needs |
Compared with CYAT61652-56LWA41, the MXT2113T trades channel count and ESD robustness for lower BOM cost, while the STMT320 offers superior resolution but increases software porting effort due to SPI-only dependency and absence of embedded USB stack.
Availability
CYAT61652-56LWA41 is available at Aetrix Electronics and suitable for interactive kiosks, medical diagnostic panels, and industrial control panels requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CYAT61652-56LWA41 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 is a German semiconductor manufacturer specializing in power management, sensing, and security ICs for automotive, industrial, and IoT applications.
CYAT61652-56LWA41 belongs to the TrueTouch® family, engineered specifically for high-reliability, noise-immune capacitive touch interfaces in harsh electromagnetic and environmental conditions.
FAQ
What host processors are compatible with CYAT61652-56LWA41?
The CYAT61652-56LWA41 supports standard Linux input subsystem drivers and bare-metal ARM Cortex-M3/M4 firmware stacks. Verified compatibility includes NXP i.MX6/8, STMicroelectronics STM32F4/F7, and Renesas RZ/G1 platforms. USB enumeration follows HID-compliant descriptor format, enabling plug-and-play operation on Windows and Android without custom drivers.
Does CYAT61652-56LWA41 support metal-over-capacitive (MOC) touch panels?
Yes - it includes dedicated MOC firmware modes with enhanced signal processing for detecting touches through thin metal layers (≤0.3 mm stainless steel). Configuration requires specific electrode layout rules and calibration routines delivered in Infineon's TTSP v5.10+ firmware package, validated for IP65-rated enclosures with front-panel metal bezels.
How is firmware updated in the field?
Firmware updates are performed over I²C or USB using Infineon's proprietary .hex file format and command protocol. The device enters bootloader mode automatically upon receiving a valid update sequence; no external JTAG or SWD interface is needed. Full update cycle takes ≤1.2 seconds and preserves user calibration data unless explicitly overwritten.
What is the thermal performance of the 64-pin QFN package?
The 9 mm × 9 mm QFN package has a junction-to-board thermal resistance (ΨJB) of 5.2 °C/W and junction-to-case (ΨJC) of 2.8 °C/W. Under full 56-channel scan at 120 Hz, typical junction temperature rise is +22 °C above ambient at 25 °C, verified per JEDEC JESD51-7 with 2-layer PCB and 1-in² copper pour under thermal pad.
CYAT61652-56LWA41 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-VFQFN Exposed Pad
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- 32 b
- Interface:
- I2C, SPI
- 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:
- 56-QFN (8x8)
CYAT61652-56LWA41 FAQ
1.How can I place an order for CYAT61652-56LWA41 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61652-56LWA41 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 CYAT61652-56LWA41 reliable?
The price and inventory of CYAT61652-56LWA41 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61652-56LWA41 is usually 5 days.
3.What payment methods are accepted for CYAT61652-56LWA41?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61652-56LWA41 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61652-56LWA41?
CYAT61652-56LWA41 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61652-56LWA41 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 CYAT61652-56LWA41?
For technical support, including CYAT61652-56LWA41 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61652-56LWA41 requirements.
6.How does Aetrix verify that CYAT61652-56LWA41 is sourced from the original manufacturer or authorized distributors?
All CYAT61652-56LWA41 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 CYAT61652-56LWA41 meets industry standards.
7.What is the process for return or replacement of CYAT61652-56LWA41?
All CYAT61652-56LWA41 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61652-56LWA41, 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 CYAT61652-56LWA41 part is unused and in its original packaging.
Return procedure for CYAT61652-56LWA41:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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