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Infineon Technologies CYAT61659-64AS48T
- Part No.:
- CYAT61659-64AS48T
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61659-64AS48T.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,042
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Product details
Overview
CYAT61659-64AS48T from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, integrated ARM Cortex-M0+ MCU, and support for up to 10-finger simultaneous tracking. It operates from 1.71–3.6 V, features 256 KB flash and 32 KB SRAM, and targets embedded human-machine interface applications in industrial HMIs and medical touch panels.
For engineers reviewing the CYAT61659-64AS48T datasheet, CYAT61659-64AS48T pinout, CYAT61659-64AS48T application, or CYAT61659-64AS48T equivalent, key selection criteria include mutual-capacitance scan resolution, integrated firmware stack for gesture recognition, I²C/SPI/USB interface options, and AEC-Q200 qualification status for harsh-environment deployment.
Technical Context
The device integrates a programmable analog signal chain with configurable IDACs and sigma-delta ADCs per channel, enabling high-SNR capacitance measurement across noisy industrial environments. Its PSoC architecture allows hardware-level reconfiguration of sensor scanning sequences and real-time baseline compensation without CPU intervention.
TrueTouch firmware executes on the embedded Cortex-M0+, supporting dynamic threshold adaptation, palm rejection, hover detection, and proximity wake-up-all validated per IEC 61000-4-6 conducted immunity requirements at 10 V/m. The USB 2.0 interface supports HID-compliant report descriptors for plug-and-play integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 64 analog input channels support full matrix scanning of up to 1024-node touch panels |
| MCU Core | ARM Cortex-M0+ @ 48 MHz enables real-time gesture processing with <50 µs interrupt latency |
| Memory | 256 KB flash (with ECC) and 32 KB SRAM allow field-upgradable firmware and multi-layer gesture engine |
| Supply Voltage | 1.71–3.6 V operation ensures compatibility with single-cell Li-ion and 3.3 V system rails |
| Interface Options | I²C (up to 1 MHz), SPI (up to 24 MHz), and full-speed USB 2.0 support flexible host connectivity |
| Operating Temp | –40°C to +85°C rating qualifies for industrial control panel and medical diagnostic equipment use |
Pinout & Package
64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad for enhanced power dissipation in continuous scan mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | Supplies 1.71–3.6 V to all digital I/Os including I²C/SPI pins; decoupling required per layout guidelines |
| VDDA | Analog supply rail | Separate 1.71–3.6 V supply for analog front-end; improves SNR by isolating noise from digital switching |
| SDA/SCL | I²C bidirectional data/clock | Supports standard/fast-mode I²C; internal pull-ups disabled by default to avoid bus contention |
| USB_DP/DM | USB differential pair | Full-speed USB 2.0 physical layer compliant; requires 27 Ω series resistors and proper impedance-controlled routing |
| CTB0–63 | Capsense terminal bank | 64 dedicated analog inputs for mutual-capacitance sensing; each configurable as transmit or receive via firmware |
Key Features
| Feature | Design Value |
|---|---|
| Integrated TrueTouch firmware stack | Pre-certified gesture engine supports pinch-to-zoom, swipe, rotate, and multi-finger tap without host CPU load |
| Programmable analog front-end | Per-channel IDAC gain and ADC integration time configurable in real time to adapt to varying panel thickness and cover lens material |
| Hardware-accelerated baseline tracking | Dedicated digital logic maintains stable reference capacitance values during temperature drift or EMI events, reducing false touches |
| AEC-Q200 qualified | Validated for automotive-grade reliability including 1000-hour HTOL, thermal cycling, and mechanical shock testing |
Applications
| Industrial HMI Panel | Medical Diagnostic Touchscreen |
|---|---|
Use Scenario: Operator interface on factory-floor PLC control cabinets exposed to EMI and wide temperature swings. IC Role / Device Role / Timing Role: Primary capacitive touch controller handling real-time finger tracking and gesture decoding independent of main system MCU. Use Value: Hardware-based baseline compensation maintains touch accuracy during ambient temperature shifts from 0°C to 70°C without recalibration. | Use Scenario: Touch interface on portable ultrasound or patient monitor requiring glove operation and sterilizable surface compatibility. IC Role / Device Role / Timing Role: Self-contained touch acquisition and preprocessing unit delivering filtered, gesture-classified reports over I²C to safety-critical host processor. Use Value: Integrated palm rejection and hover detection prevent accidental activation when clinicians approach the screen with gloved hands. |
| Automotive Center Stack | Smart Building Control Terminal |
Use Scenario: Infotainment center stack in passenger vehicles operating under AEC-Q200 environmental stress conditions. IC Role / Device Role / Timing Role: Automotive-qualified TrueTouch controller managing multi-touch gestures and proximity wake-up for display backlight control. Use Value: USB HID interface enables direct connection to head-unit SoC without additional protocol translation firmware. | Use Scenario: Wall-mounted HVAC and lighting control panel in commercial buildings with glass overlay and metal bezel interference. IC Role / Device Role / Timing Role: Capacitive controller compensating for parasitic coupling from nearby metal enclosures using shield drive and guard ring configuration. Use Value: Configurable shield drive output reduces false triggers caused by metal frame proximity, verified per IEC 61000-4-3 radiated immunity tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247LQI-BL483 | Same PSoC 4 architecture but lacks TrueTouch firmware stack and dedicated analog front-end calibration logic | Requires external touch library development and custom analog tuning for each panel design | Select only if full firmware customization and lower BOM cost outweigh development time and qualification effort |
| MTCH6302-I/SS | Dedicated touch controller with 64-channel support but no embedded MCU; relies on external host for gesture processing | Suitable for designs where host processor handles all gesture logic and only raw coordinate data is needed | Choose when system already includes a capable application processor and deterministic low-latency USB/I²C transport is available |
Compared with CY8C4247LQI-BL483 and MTCH6302-I/SS, CYAT61659-64AS48T delivers certified gesture recognition out-of-box, reduces host processor load by 70% in multi-finger scenarios, and eliminates need for third-party touch firmware validation-critical for medical and automotive certifications.
Availability
CYAT61659-64AS48T is available at Aetrix Electronics and suitable for industrial HMIs, medical diagnostic devices, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and AEC-Q200 compliance.
Supply support for CYAT61659-64AS48T 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 microcontroller solutions for industrial, automotive, and IoT markets.
CYAT61659-64AS48T belongs to the TrueTouch Gen5 product line, engineered specifically for high-reliability capacitive touch applications demanding robust noise immunity, glove/finger differentiation, and automotive-grade qualification.
FAQ
What is the maximum supported touch panel size for CYAT61659-64AS48T?
The device supports up to 1024-node mutual-capacitance panels, typically implemented as 32×32 matrices. Maximum physical size depends on electrode pitch and trace resistance; validated designs include 15.6-inch diagonal panels with 0.5 mm ITO pitch and <200 Ω/sq sheet resistance.
Does CYAT61659-64AS48T support active stylus input?
No, CYAT61659-64AS48T is designed exclusively for passive capacitive touch sensing and does not include active stylus protocol support such as AES or EMR. It detects finger and conductive stylus input only, with no pressure or tilt reporting capability.
Can the TrueTouch firmware be updated in the field?
Yes, firmware updates are supported via I²C or USB using Infineon's CAPSENSE™ Tuner tool and signed update packages. Field updates preserve calibration data and require no hardware reset, enabling remote feature enhancements and EMI mitigation patches.
Is there a recommended layout guideline for the exposed thermal pad?
Yes, the exposed pad must be soldered to a minimum 12 mm² copper pour connected to VSS through ≥4 thermal vias (0.3 mm diameter, 0.6 mm pitch). This ensures junction temperature remains below 115°C during continuous 64-channel scanning at 120 Hz refresh rate.
CYAT61659-64AS48T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- -
- 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:
- 64-TQFP (10x10)
CYAT61659-64AS48T FAQ
1.How can I place an order for CYAT61659-64AS48T through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61659-64AS48T 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 CYAT61659-64AS48T reliable?
The price and inventory of CYAT61659-64AS48T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61659-64AS48T is usually 5 days.
3.What payment methods are accepted for CYAT61659-64AS48T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61659-64AS48T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61659-64AS48T?
CYAT61659-64AS48T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61659-64AS48T 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 CYAT61659-64AS48T?
For technical support, including CYAT61659-64AS48T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61659-64AS48T requirements.
6.How does Aetrix verify that CYAT61659-64AS48T is sourced from the original manufacturer or authorized distributors?
All CYAT61659-64AS48T 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 CYAT61659-64AS48T meets industry standards.
7.What is the process for return or replacement of CYAT61659-64AS48T?
All CYAT61659-64AS48T units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61659-64AS48T, 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 CYAT61659-64AS48T part is unused and in its original packaging.
Return procedure for CYAT61659-64AS48T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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