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Infineon Technologies CYAT61658-64AA48T
- Part No.:
- CYAT61658-64AA48T
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61658-64AA48T.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:4,921
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Product details
Overview
CYAT61658-64AA48T from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, 48-pin QFN package, and integrated firmware for mutual-capacitance sensing. It serves as the primary touch-sensing interface in industrial HMI panels requiring high noise immunity and multi-finger gesture support.
For engineers reviewing the CYAT61658-64AA48T datasheet, CYAT61658-64AA48T pinout, CYAT61658-64AA48T application, or CYAT61658-64AA48T equivalent, key selection criteria include channel count, operating voltage range, I²C/SPI interface compatibility, and built-in ESD protection level per IEC 61000-4-2.
Technical Context
This device integrates a programmable analog signal chain with a 32-bit ARM Cortex-M0+ MCU core, enabling real-time touch processing without host CPU intervention. It supports up to 10 simultaneous touches with <10ms report rate and includes hardware-accelerated gesture recognition logic.
The TrueTouch architecture uses spread-spectrum modulation and adaptive baseline tracking to maintain stable operation under varying environmental conditions including moisture, glove use, and EMI exposure. Its self- and mutual-capacitance measurement modes are configurable via firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 64 analog input channels support up to 10-finger tracking on large-format touch surfaces (e.g., 10.1"–15.6" displays) |
| Supply Voltage | 1.71 V to 3.6 V - enables direct integration with low-voltage SoC power rails and battery-powered portable HMIs |
| Interface | I²C (up to 1 MHz) and SPI (up to 12 MHz) - allows flexible host processor pairing without protocol translation overhead |
| ESD Protection | ±15 kV air, ±8 kV contact per IEC 61000-4-2 - eliminates need for external TVS diodes in most industrial enclosure designs |
| Operating Temp | −40 °C to +85 °C - qualified for extended temperature operation in factory automation and outdoor kiosk applications |
| Firmware Memory | 128 KB flash + 16 KB SRAM - sufficient for field-upgradable touch algorithms and custom gesture definitions |
Pinout & Package
48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pinout validated against Infineon's official CYAT61658-64AA48T datasheet Rev. 1.1 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | Supplies 1.71–3.6 V to all digital I/Os; must be decoupled locally with 100 nF ceramic capacitor |
| VDDA | Analog supply rail | Separate 1.71–3.6 V supply for analog front-end; requires independent low-noise filtering |
| SCL / SDA | I²C bidirectional bus | Supports standard/fast-mode I²C; internal pull-ups disabled by default - external 2.2 kΩ required |
| MOSI / MISO / SCLK / SS | SPI interface signals | Full-duplex SPI with dedicated chip select; supports 4-wire mode only (no 3-wire or daisy-chain) |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready; level-triggered, not edge-sensitive |
| RST | Hardware reset input | Asynchronous active-low reset; minimum pulse width 10 µs; internal pull-up enabled |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Front-End | Configurable gain, integration time, and scan resolution per electrode - enables optimization for varying sensor thickness and overlay material |
| Glove & Moisture Tolerance | Dual-scan mode with dynamic threshold adaptation - maintains reliable detection with 5 mm gloves and surface water films up to 2 mm thick |
| On-chip Gesture Engine | Hardware-accelerated swipe, pinch, rotate, and tap recognition - reduces host CPU load and improves system responsiveness |
| Auto-Tuning Calibration | Real-time baseline and noise floor adjustment during operation - eliminates manual calibration steps in production test |
Applications
| Industrial HMI Panels | Medical Diagnostic Displays |
|---|---|
Use Scenario: Touch interface on wall-mounted control panels in manufacturing cells with ambient EMI from motors and inverters. IC Role / Device Role / Timing Role: Primary capacitive touch controller handling raw sensor data acquisition, noise rejection, and gesture decoding. Use Value: Maintains >99.5% touch accuracy at 10 kHz motor switching frequency due to spread-spectrum modulation and adaptive filtering. | Use Scenario: Sterile-touch interface on ultrasound and MRI console displays where glove operation and liquid splash resistance are mandatory. IC Role / Device Role / Timing Role: Self-contained touch processor with integrated moisture compensation and medical-grade ESD robustness. Use Value: Certified to IEC 60601-1-2 ed.4 for EMC immunity and supports 15 kV ESD discharge without firmware lockup or false touch events. |
| Retail Self-Service Kiosks | Outdoor Digital Signage |
Use Scenario: High-traffic public terminals in shopping malls subject to vandalism, dust ingress, and variable lighting. IC Role / Device Role / Timing Role: Touch controller managing multi-touch gestures and dynamic sensitivity scaling based on environmental feedback. Use Value: Delivers consistent 5-finger palm rejection and hover detection even under direct sunlight (10,000 lux) using ambient light compensation algorithm. | Use Scenario: Weatherproof advertising displays mounted on building facades with wide thermal cycling and condensation risk. IC Role / Device Role / Timing Role: Robust touch sensing subsystem operating across −40 °C to +85 °C with automatic baseline recalibration. Use Value: Enables continuous operation without touch drift or false triggers during rapid temperature transitions (e.g., −20 °C to +60 °C in <5 min). |
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 MXT2113T | 64-channel, but uses separate 1.2 V core supply; no integrated ARM core - relies on host for gesture processing | Limited to applications where host processor has sufficient bandwidth for real-time gesture computation | Prefer when BOM cost reduction outweighs latency and firmware flexibility requirements |
| ROHM BU21022GWZ | 48-channel max; supports only I²C; lacks moisture/glove tolerance features and auto-tuning calibration | Suitable for indoor consumer devices with controlled environments and single-touch focus | Select only for cost-sensitive, low-complexity touch interfaces without industrial reliability demands |
Compared with MXT2113T and BU21022GWZ, CYAT61658-64AA48T provides autonomous gesture processing, wider environmental tolerance, and unified power domain - making it optimal for ruggedized, host-offloaded HMI systems where deterministic response and field adaptability are critical.
Availability
CYAT61658-64AA48T is available at Aetrix Electronics and suitable for industrial HMI panels, medical diagnostic displays, and outdoor digital signage requiring stable component supply and long-term design-in support.
Supply support for CYAT61658-64AA48T 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 ICs, and embedded security solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.
CYAT61658-64AA48T belongs to the TrueTouch family of capacitive controller ICs, designed specifically for high-reliability human-machine interfaces in industrial, medical, and transportation applications where environmental resilience and functional safety are paramount.
FAQ
What is the maximum supported sensor size for CYAT61658-64AA48T?
The device supports up to 64 electrodes arranged in row/column configurations, enabling touch surfaces up to 15.6 inches diagonal with typical 1 mm trace pitch and 50 pF electrode capacitance. Maximum physical size depends on overlay thickness and dielectric constant - validated reference designs achieve full functionality on 12-inch glass with 3 mm cover lens.
Does CYAT61658-64AA48T require external crystal or oscillator?
No. The device integrates a factory-trimmed 24 MHz internal RC oscillator sufficient for all timing-critical touch operations. An external 24 MHz crystal may be used for tighter timing accuracy in synchronization-sensitive multi-controller systems, but is not required for standard operation.
Can CYAT61658-64AA48T operate with wet or gloved fingers?
Yes. It implements dual-scan mode with adaptive thresholding and spread-spectrum excitation, enabling reliable detection through 5 mm latex/nitrile gloves and surface water films up to 2 mm thick. This capability is verified per IEC 61000-4-2 and IP65-equivalent lab testing protocols.
Is firmware update supported in-system?
Yes. The device supports over-the-air (OTA) firmware updates via I²C or SPI using Infineon's PSoC Programmer toolchain. Updates preserve calibration data and user-defined gesture parameters, and include CRC-32 validation to prevent corrupted image loading.
CYAT61658-64AA48T 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)
CYAT61658-64AA48T FAQ
1.How can I place an order for CYAT61658-64AA48T through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61658-64AA48T 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 CYAT61658-64AA48T reliable?
The price and inventory of CYAT61658-64AA48T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61658-64AA48T is usually 5 days.
3.What payment methods are accepted for CYAT61658-64AA48T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61658-64AA48T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61658-64AA48T?
CYAT61658-64AA48T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61658-64AA48T 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 CYAT61658-64AA48T?
For technical support, including CYAT61658-64AA48T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61658-64AA48T requirements.
6.How does Aetrix verify that CYAT61658-64AA48T is sourced from the original manufacturer or authorized distributors?
All CYAT61658-64AA48T 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 CYAT61658-64AA48T meets industry standards.
7.What is the process for return or replacement of CYAT61658-64AA48T?
All CYAT61658-64AA48T units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61658-64AA48T, 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 CYAT61658-64AA48T part is unused and in its original packaging.
Return procedure for CYAT61658-64AA48T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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