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Infineon Technologies CYAT61659-64AA48T
- Part No.:
- CYAT61659-64AA48T
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61659-64AA48T.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:2,854
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Product details
Overview
CYAT61659-64AA48T from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, integrated ARM Cortex-M0+ core, and up to 64K flash memory. It supports mutual-capacitance sensing for projected capacitive touch panels up to 10.1-inch diagonal, operates from 1.71–5.5 V supply, and delivers <15 µA deep-sleep current. Used in industrial HMI panels requiring glove and wet-finger operation.
For engineers reviewing the CYAT61659-64AA48T datasheet, CYAT61659-64AA48T pinout, CYAT61659-64AA48T application, or CYAT61659-64AA48T equivalent, key selection criteria include channel count, integrated MCU architecture, power modes, I²C/SPI interface support, and wet-touch immunity performance per IEC 61000-4-6.
Technical Context
This device integrates a programmable analog and digital system-on-chip (PSoC) architecture with dedicated TrueTouch sensing hardware. It features a 48 MHz ARM Cortex-M0+ CPU, configurable SAR ADCs for sensor signal acquisition, and hardware-accelerated touch algorithm engine supporting up to 10 simultaneous touches.
The controller implements adaptive baseline tracking, noise rejection via spread-spectrum modulation, and real-time compensation for environmental drift. Its firmware is field-upgradable via I²C or SPI, and it supports host processor offload for gesture recognition including swipe, pinch, and rotate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 64 analog input channels - supports high-resolution touch panels with ≥100 nodes and multi-finger tracking |
| CPU Core | ARM Cortex-M0+ @ 48 MHz - enables local gesture processing without host CPU involvement |
| Flash Memory | 64 KB - stores full touch firmware, calibration data, and customer application logic |
| Supply Voltage | 1.71–5.5 V - compatible with single-cell Li-ion, USB-powered, and industrial 3.3/5 V rails |
| Deep-Sleep Current | <15 µA - extends battery life in portable HMIs and kiosks with intermittent wake events |
| Interface Protocols | I²C (up to 1 MHz), SPI (up to 12 MHz) - ensures low-latency host communication and robust noise immunity |
Pinout & Package
64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin mapping validated per Infineon's CYAT61659-64AA48T datasheet Rev. 1.0 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Supply | Supplies 1.71–5.5 V to all digital I/Os and interface logic; decoupling required |
| VDDA | Analog Supply | Provides clean 3.3 V ±5% for analog front-end; separate LDO recommended |
| SCL / SDA | I²C Interface | Open-drain bidirectional bus lines; require external pull-ups to VDDIO |
| MOSI / MISO / SCLK / SS | SPI Interface | Full-duplex 4-wire SPI; SS active-low enables slave select for multi-device systems |
| INT | Interrupt Output | Active-low open-drain signal asserts on touch event or firmware error condition |
Key Features
| Feature | Design Value |
|---|---|
| Glove & Wet-Finger Support | Hardware-accelerated signal processing maintains >95% touch accuracy with 3 mm gloves and water-covered surfaces |
| Self- and Mutual-Capacitance Modes | Configurable per application: mutual mode for high SNR on large panels; self-cap for proximity or button-only designs |
| Programmable Noise Immunity | Adjustable spread-spectrum clocking and adaptive filtering reject ESD, RF, and LCD coupling interference |
| Firmware Upgradability | Over-the-air (OTA) updates via I²C/SPI without external programmer; supports dual-bank secure boot |
Applications
| Industrial HMI Panel | Medical Touch Display |
|---|---|
Use Scenario: Operator interface on factory-floor PLC control cabinets exposed to oil mist and temperature swings. IC Role / Device Role / Timing Role: Primary touch controller managing 128-node 7-inch projected capacitive overlay with real-time gesture decoding. Use Value: Maintains reliable touch response at -40°C to +85°C ambient and rejects 2 kV ESD per IEC 61000-4-2. | Use Scenario: Sterilizable bedside monitor with sealed front-glass interface requiring glove operation. IC Role / Device Role / Timing Role: Standalone touch manager handling multi-touch gestures while isolating host processor from sensor timing constraints. Use Value: Achieves <50 ms report rate at 10-finger tracking and meets IEC 60601-1-2 EMC requirements. |
| Retail Kiosk | Smart Home Control Panel |
Use Scenario: Public-facing outdoor kiosk subject to rain, condensation, and direct sunlight. IC Role / Device Role / Timing Role: Integrated touch + system management unit running custom UI logic and power state coordination. Use Value: Enables wet-finger operation under 2 mm water film and supports scheduled deep-sleep to extend solar-charged battery life. | Use Scenario: Wall-mounted lighting and climate control panel with minimal bezel and glass-over-touch design. IC Role / Device Role / Timing Role: Low-power capacitive controller interfacing directly to ESP32 host via I²C with interrupt-driven event reporting. Use Value: Delivers sub-100 µA average system current during idle and supports proximity wake-up before full touch activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4046LQ-442 | 44-pin QFN, 32-channel AFE, no integrated TrueTouch engine; requires external firmware for gesture processing | Limited to smaller panels (<5″); lacks wet-touch and glove support out-of-box | Select only when cost sensitivity outweighs feature requirements and firmware development resources are available |
| ATMXT224E-MAU | Microchip maXTouch controller with 224-node capacity but no embedded ARM core; relies on host for advanced gesture logic | Better suited for smartphone-class UIs with high host processing bandwidth; less autonomous than CYAT61659 | Prefer when host SoC has strong real-time OS support and touch firmware portability is critical |
Compared with CY8C4046LQ-442 and ATMXT224E-MAU, CYAT61659-64AA48T provides higher channel density, on-die gesture acceleration, and certified wet/glove operation-reducing BOM count and firmware validation effort for industrial HMIs.
Availability
CYAT61659-64AA48T is available at Aetrix Electronics and suitable for industrial HMI panels, medical touch displays, and retail kiosks requiring stable component supply, long-term lifecycle support, and automotive-grade reliability testing.
Supply support for CYAT61659-64AA48T 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, sensing, and microcontroller solutions for industrial, automotive, and IoT applications.
CYAT61659 belongs to the TrueTouch Gen5 family, designed specifically for ruggedized human-machine interfaces demanding high noise immunity, low-power operation, and seamless integration with embedded Linux or RTOS hosts.
FAQ
What is the maximum supported panel size for CYAT61659-64AA48T?
The device supports projected capacitive touch panels up to 10.1 inches diagonal with 64-channel routing. Physical size depends on electrode pitch and layer stack; typical implementations use 1.5–2.0 mm pitch for 100+ node layouts. Layout guidelines are provided in Infineon Application Note AN95157.
Does CYAT61659-64AA48T support I²C and SPI simultaneously?
No - the device supports either I²C or SPI at runtime, selected via configuration bits in the boot ROM. Both interfaces share the same physical pins (SCL/SDA or MOSI/MISO/SCLK/SS), and switching requires firmware reinitialization. Dual-interface operation is not hardware-supported.
Is wet-finger operation certified to any international standard?
Yes - Infineon validates wet-finger performance per IEC 61000-4-6 (conducted RF immunity) and IEC 61000-4-2 (ESD) test conditions. Full test reports are available under NDA from Infineon's technical support portal for qualified customers.
Can the internal ARM Cortex-M0+ run custom application code alongside touch firmware?
Yes - the 64 KB flash includes space for user application code. Infineon provides PSoC Creator IDE with TrueTouch middleware libraries, enabling coexistence of touch services and custom logic such as LED control, UART bridging, or sensor fusion - all within a single binary image.
CYAT61659-64AA48T 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)
CYAT61659-64AA48T FAQ
1.How can I place an order for CYAT61659-64AA48T through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61659-64AA48T 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 CYAT61659-64AA48T reliable?
The price and inventory of CYAT61659-64AA48T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61659-64AA48T is usually 5 days.
3.What payment methods are accepted for CYAT61659-64AA48T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61659-64AA48T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61659-64AA48T?
CYAT61659-64AA48T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61659-64AA48T 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 CYAT61659-64AA48T?
For technical support, including CYAT61659-64AA48T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61659-64AA48T requirements.
6.How does Aetrix verify that CYAT61659-64AA48T is sourced from the original manufacturer or authorized distributors?
All CYAT61659-64AA48T 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 CYAT61659-64AA48T meets industry standards.
7.What is the process for return or replacement of CYAT61659-64AA48T?
All CYAT61659-64AA48T units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61659-64AA48T, 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 CYAT61659-64AA48T part is unused and in its original packaging.
Return procedure for CYAT61659-64AA48T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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