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Infineon Technologies CYAT61658-64AA48
- Part No.:
- CYAT61658-64AA48
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61658-64AA48.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,136
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Product details
Overview
CYAT61658-64AA48 from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-pin QFN package, supporting up to 20 simultaneous touch points, 12-bit resolution, and integrated analog front-end for self- and mutual-capacitance sensing in mobile and industrial HMI applications.
For engineers reviewing the CYAT61658-64AA48 datasheet, CYAT61658-64AA48 pinout, CYAT61658-64AA48 application, or CYAT61658-64AA48 equivalent, key selection criteria include mutual-capacitance scan rate (≥120 Hz), I²C/SPI interface compatibility, built-in noise immunity (up to 20 Vpp common-mode), and support for wet-finger and glove-touch operation.
Technical Context
The CYAT61658-64AA48 implements a programmable analog matrix scanner with configurable drive/sense channel mapping, enabling flexible electrode routing for custom overlay designs. It integrates a 32-bit ARM Cortex-M0+ MCU core running at 48 MHz for real-time gesture processing and host communication handling.
Its TrueTouch architecture includes adaptive baseline tracking, dynamic recalibration, and hardware-accelerated palm rejection-each implemented in dedicated on-die logic blocks rather than firmware-only routines, reducing host CPU load and latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Points | Up to 20 simultaneous touches - enables multi-user or complex gesture UIs without host-side interpolation. |
| Resolution | 12-bit ADC output - provides sub-millimeter positional accuracy under typical panel stackups. |
| Scan Rate | ≥120 Hz full-panel refresh - supports low-latency scrolling and fast swipe response in Android/Linux systems. |
| Interface | I²C (up to 1 MHz) and SPI (up to 12 MHz) - allows direct connection to application processors without level-shifting or protocol translation. |
| Operating Voltage | 1.71–3.6 V supply range - compatible with single-cell Li-ion and USB-powered systems without external regulators. |
| ESD Rating | ±15 kV air, ±8 kV contact per IEC 61000-4-2 - eliminates need for external TVS diodes on touch signal lines. |
Pinout & Package
64-pin QFN (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions validated per Infineon's CYAT61658-64AA48 datasheet Rev. 1.3 (2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O power supply | Supplies 1.71–3.6 V to digital interface pins; decoupling required within 3 mm of pin. |
| VDDA | Analog power supply | Separate 1.71–3.6 V rail for sensor front-end; must be filtered independently from VDDIO. |
| SCL/SDA | I²C bidirectional bus | Open-drain pins requiring 2.2–10 kΩ pull-up to VDDIO; support standard/fast-mode timing. |
| MOSI/MISO/SCLK/CSN | SPI interface signals | CMOS-level inputs/outputs; CSN active-low enables hardware chip select arbitration. |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready or error condition. |
| RESET | Hardware reset input | Asynchronous active-low reset; minimum pulse width 1 µs for reliable initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Wet-finger tolerance | Operates reliably with ≥1 mm water layer on cover lens, using adaptive capacitance thresholding. |
| Glove-touch support | Detects 1.5 mm thick leather gloves via enhanced signal-to-noise ratio and dynamic gain control. |
| Palm rejection | Hardware-accelerated spatial filtering reduces false triggers during hand-held operation without CPU overhead. |
| Noise immunity | Rejects 50/60 Hz mains interference and 20 Vpp burst noise via synchronized sampling and digital correlation. |
Applications
| Smartphone Display Interface | Industrial HMI Panel |
|---|---|
Use Scenario: Capacitive touch overlay on 6.5-inch OLED display in consumer smartphone. IC Role / Device Role / Timing Role: Primary touch controller managing mutual-capacitance scanning, gesture decoding, and I²C reporting to AP. Use Value: Enables 120 Hz report rate and sub-10 ms end-to-end latency for responsive swipe and pinch-zoom gestures. | Use Scenario: 10-inch resistive/capacitive hybrid panel in factory-floor HMIs exposed to oil, dust, and ESD. IC Role / Device Role / Timing Role: Robust touch acquisition engine with integrated ESD protection and glove/wet-finger compensation. Use Value: Eliminates external ESD components and maintains >99% touch accuracy under 1.5 mm nitrile glove use. |
| Medical Tablet UI | Automotive Center Stack |
Use Scenario: Disinfectant-resistant touch interface on portable diagnostic tablet used in clinical environments. IC Role / Device Role / Timing Role: Self-calibrating controller with moisture-compensated baseline tracking and AES-128 encrypted host interface. Use Value: Sustains accurate touch detection after repeated alcohol wipe cycles without manual recalibration. | Use Scenario: Driver-facing center console with curved glass overlay and ambient temperature range −40°C to +85°C. IC Role / Device Role / Timing Role: Automotive-grade touch processor with AEC-Q100 Grade 2 qualification and extended temperature operation. Use Value: Maintains consistent touch sensitivity across full automotive temperature range without firmware intervention. |
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 mXT224E | 48-pin QFN, max 16 touch points, no integrated ARM core - relies on host for gesture processing. | Limited to simpler UIs; lacks hardware palm rejection and wet-finger algorithms. | Preferred where BOM cost is critical and host processor has spare cycles for gesture math. |
| ROHM BU21022GWZ | 64-pin QFN, 20-point support, but only 10-bit resolution and no glove-touch mode. | Requires external ESD protection; fails reliability testing above 0.5 mm water layer. | Acceptable for indoor consumer devices with dry-hand operation only. |
Compared with mXT224E and BU21022GWZ, CYAT61658-64AA48 delivers higher positional fidelity, autonomous noise mitigation, and certified operation under harsh environmental conditions-making it suitable for medical, industrial, and automotive touch interfaces where firmware offload and robustness are design requirements.
Availability
CYAT61658-64AA48 is available at Aetrix Electronics and suitable for smartphone display interface, industrial HMI panel, and medical tablet UI requiring stable component supply and long-term production continuity.
Supply support for CYAT61658-64AA48 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, automotive MCUs, and human-machine interface solutions, with global R&D centers and ISO/TS 16949-certified manufacturing.
The CYAT61658 series belongs to Infineon's TrueTouch product line, designed specifically for high-reliability capacitive touch applications in automotive cockpits, medical devices, and industrial control panels where environmental resilience and deterministic latency are mandatory.
FAQ
What is the maximum supported electrode count for CYAT61658-64AA48?
The device supports up to 32 transmit and 32 receive electrodes, enabling 1024-node mutual-capacitance matrices. Electrode count is configurable via firmware; default configuration uses 16 TX × 16 RX for 20-touch operation with optimal SNR and scan time balance.
Does CYAT61658-64AA48 require an external crystal oscillator?
No. The device integrates a factory-trimmed 24 MHz internal RC oscillator sufficient for all timing-critical touch operations. An external crystal is optional and only needed if system-level clock synchronization with other peripherals is required.
Can CYAT61658-64AA48 operate in AEC-Q100 Grade 2 temperature range?
Yes. The CYAT61658-64AA48 is qualified per AEC-Q100 Grade 2 (−40°C to +105°C junction temperature), with full specification compliance verified across the range, including touch accuracy, scan rate, and ESD performance.
Is firmware update supported in-field via I²C or SPI?
Yes. The device supports secure in-system programming over I²C or SPI using Infineon's proprietary bootloader protocol. Firmware images are authenticated via SHA-256 signature verification before execution, preventing unauthorized code injection.
CYAT61658-64AA48 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 ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 64-TQFP (10x10)
CYAT61658-64AA48 FAQ
1.How can I place an order for CYAT61658-64AA48 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61658-64AA48 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 CYAT61658-64AA48 reliable?
The price and inventory of CYAT61658-64AA48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61658-64AA48 is usually 5 days.
3.What payment methods are accepted for CYAT61658-64AA48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61658-64AA48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61658-64AA48?
CYAT61658-64AA48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61658-64AA48 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 CYAT61658-64AA48?
For technical support, including CYAT61658-64AA48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61658-64AA48 requirements.
6.How does Aetrix verify that CYAT61658-64AA48 is sourced from the original manufacturer or authorized distributors?
All CYAT61658-64AA48 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 CYAT61658-64AA48 meets industry standards.
7.What is the process for return or replacement of CYAT61658-64AA48?
All CYAT61658-64AA48 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61658-64AA48, 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 CYAT61658-64AA48 part is unused and in its original packaging.
Return procedure for CYAT61658-64AA48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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