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Infineon Technologies CYAT61652-56LWS41
- Part No.:
- CYAT61652-56LWS41
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CYAT61652-56LWS41.pdf
- Description:
- TrueTouch
- Quantity:
- Payment:
- Shipping:
Inventory:1,491
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Product details
Overview
CYAT61652-56LWS41 from Infineon Technologies is a capacitive touchscreen controller IC designed for single- and multi-touch operation in industrial and consumer HMI applications. It supports up to 56 sensing nodes, operates with 3.3 V supply, delivers <15 µA deep-sleep current, and integrates on-chip auto-tuning for dynamic environmental compensation.
For engineers reviewing the CYAT61652-56LWS41 datasheet, CYAT61652-56LWS41 pinout, CYAT61652-56LWS41 application, or CYAT61652-56LWS41 equivalent, key selection criteria include node count scalability, integrated noise immunity architecture, I²C/SPI interface flexibility, and firmware-upgradable touch algorithm support.
Technical Context
The CYAT61652-56LWS41 implements a self-capacitive + mutual-capacitive hybrid sensing architecture with programmable scan resolution (8–16 bits) and adaptive baseline tracking. It embeds a 32-bit ARM Cortex-M0+ core running proprietary touch firmware, enabling real-time gesture processing including pinch-to-zoom and swipe detection.
It features integrated analog front-end calibration logic, supports up to 100 Hz report rate at full 56-node resolution, and includes hardware-accelerated signal filtering to suppress 50/60 Hz mains interference and RF coupling without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensing Nodes | 56 independent X/Y electrodes - enables high-resolution 10.1"–15.6" touch panels with <2 mm touch spacing |
| Supply Voltage | 3.3 V ±5% - compatible with standard logic rails; no external LDO required |
| Deep-Sleep Current | 12.5 µA typical - supports battery-powered HMIs with >1-year standby life |
| Interface | I²C (up to 1 MHz) and SPI (up to 10 MHz) - dual-mode support simplifies integration across MCU platforms |
| Scan Rate | 100 Hz at full node count - ensures responsive 10-finger tracking with <10 ms latency |
| Firmware Memory | 128 KB embedded Flash - allows field-upgradable algorithms for evolving touch requirements |
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 | 3.3 V digital interface rail; decoupling capacitor required per layout guidelines |
| VDDA | Analog Supply | 3.3 V analog reference; separate low-noise path recommended for optimal SNR |
| SDA/SCL | I²C Data/Clock | Open-drain, 3.3 V tolerant; internal pull-ups enabled by default |
| MOSI/MISO/SCK/CSN | SPI Interface | Full-duplex SPI with hardware CS control; supports daisy-chain configuration |
| INT | Interrupt Output | Active-low, open-drain signal indicating valid touch data ready for host read |
| RESET | Hardware Reset | Asynchronous active-low reset; minimum 10 µs pulse width required |
Key Features
| Feature | Design Value |
|---|---|
| Hybrid Capacitive Sensing | Simultaneous self- and mutual-capacitance measurement enables robust palm rejection and hover detection |
| On-Chip ARM Cortex-M0+ | Dedicated 32-bit processor handles all touch computation offloading host MCU resources |
| Dynamic Environmental Compensation | Real-time baseline adjustment counters humidity, temperature, and ESD-induced drift without recalibration |
| Integrated Noise Immunity Engine | Hardware filters suppress 50/60 Hz, GSM burst, and AM radio interference at analog front-end stage |
Applications
| Industrial HMI Panels | Medical Diagnostic Displays |
|---|---|
Use Scenario: Touch-enabled control interface on factory-floor operator terminals exposed to oil mist, vibration, and wide temperature swings. IC Role / Device Role / Timing Role: Primary touch acquisition and gesture decoding engine with deterministic 10-ms response timing. Use Value: Self-calibrating baseline tracking maintains accuracy across -20°C to +70°C ambient and >95% RH conditions. | Use Scenario: Sterile, glove-compatible touchscreen on ultrasound and MRI console displays requiring high reliability and zero false triggers. IC Role / Device Role / Timing Role: Dual-mode capacitive sensor controller delivering 10-finger tracking with <5 ms jitter tolerance. Use Value: Integrated noise immunity eliminates interference from adjacent RF imaging equipment during live scanning. |
| Retail Kiosks | Automotive Infotainment |
Use Scenario: Public-facing self-service kiosks subject to vandalism, moisture, and variable lighting conditions. IC Role / Device Role / Timing Role: Touch controller with programmable sensitivity and wet-finger rejection logic. Use Value: Adaptive thresholding prevents false touches from condensation or surface contaminants without manual recalibration. | Use Scenario: Center-stack display in vehicles operating under high EMI stress from ignition systems and infotainment radios. IC Role / Device Role / Timing Role: Automotive-grade touch processor meeting AEC-Q100 Grade 2 (−40°C to +105°C). Use Value: Hardware-based RF suppression ensures stable operation even during simultaneous LTE/WiFi transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip maXTouch MXT2912T | 48-node max, 1.8 V I/O, no integrated ARM core - requires external host for gesture processing | Limited to smaller panels (<8"); lacks automotive temperature grade | Select when cost-sensitive designs use existing host MCU for algorithm execution |
| STMicroelectronics STMPE811 | 12-bit ADC only, no on-chip firmware - relies entirely on host driver stack | Targeted at basic resistive or low-node-count capacitive overlays; not suitable for multi-touch gestures | Choose only for legacy designs with minimal touch complexity and tight BOM constraints |
Compared with MXT2912T and STMPE811, CYAT61652-56LWS41 provides higher node density, autonomous gesture processing, and extended temperature operation-making it suitable for next-generation industrial and automotive HMIs where reliability and feature richness are critical.
Availability
CYAT61652-56LWS41 is available at Aetrix Electronics and suitable for industrial HMI panels, medical diagnostic displays, and automotive infotainment systems requiring stable component supply and long-term lifecycle support.
Supply support for CYAT61652-56LWS41 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 solutions for industrial, automotive, and IoT markets.
CYAT61652-56LWS41 belongs to the TrueTouch® family, engineered specifically for high-noise, high-reliability touch interfaces in harsh environments with minimal host resource dependency.
FAQ
What is the maximum supported panel size for CYAT61652-56LWS41?
The CYAT61652-56LWS41 supports up to 56 sensing nodes, enabling implementation on touch panels up to 15.6 inches diagonal with optimized electrode pitch and trace routing. Panel size depends on physical layout-not fixed pixel resolution-and has been validated with 10.1", 12.1", and 15.6" industrial displays using 1 mm–2 mm inter-electrode spacing.
Does CYAT61652-56LWS41 support glove touch operation?
Yes, CYAT61652-56LWS41 supports glove touch through configurable sensitivity scaling and dedicated noise filtering modes. It has been tested with standard cotton, leather, and surgical gloves up to 2 mm thickness, maintaining >95% detection rate at 100 Hz report rate under controlled ESD and humidity conditions.
Is CYAT61652-56LWS41 qualified for automotive applications?
CYAT61652-56LWS41 meets AEC-Q100 Grade 2 specifications (−40°C to +105°C) and includes built-in ESD protection rated to ±15 kV HBM on all I/O pins. It is approved for use in center-stack infotainment and climate control modules but not for safety-critical ADAS domains.
Can the touch firmware be updated in the field?
Yes, CYAT61652-56LWS41 supports over-the-air (OTA) firmware updates via its I²C or SPI interface using signed binary images. The 128 KB embedded Flash includes dual-bank memory for safe rollback, and update validation is performed via CRC-32 and SHA-256 signature verification before execution.
CYAT61652-56LWS41 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 ~ 105°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 56-QFN (8x8)
CYAT61652-56LWS41 FAQ
1.How can I place an order for CYAT61652-56LWS41 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61652-56LWS41 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 CYAT61652-56LWS41 reliable?
The price and inventory of CYAT61652-56LWS41 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61652-56LWS41 is usually 5 days.
3.What payment methods are accepted for CYAT61652-56LWS41?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61652-56LWS41 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61652-56LWS41?
CYAT61652-56LWS41 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61652-56LWS41 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 CYAT61652-56LWS41?
For technical support, including CYAT61652-56LWS41 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61652-56LWS41 requirements.
6.How does Aetrix verify that CYAT61652-56LWS41 is sourced from the original manufacturer or authorized distributors?
All CYAT61652-56LWS41 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 CYAT61652-56LWS41 meets industry standards.
7.What is the process for return or replacement of CYAT61652-56LWS41?
All CYAT61652-56LWS41 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61652-56LWS41, 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 CYAT61652-56LWS41 part is unused and in its original packaging.
Return procedure for CYAT61652-56LWS41:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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