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Infineon Technologies CYAT61658-64AS48T
- Part No.:
- CYAT61658-64AS48T
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61658-64AS48T.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:4,141
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Product details
Overview
CYAT61658-64AS48T from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, 48-pin SSOP package, and integrated firmware for mutual-capacitance sensing. It supports up to 10-finger tracking, operates from 2.7–5.5 V, and targets embedded human-machine interface (HMI) applications in industrial control panels.
For engineers reviewing the CYAT61658-64AS48T datasheet, CYAT61658-64AS48T pinout, CYAT61658-64AS48T application, or CYAT61658-64AS48T equivalent, key selection criteria include channel count, supply voltage range, finger-tracking capability, SSOP-48 mechanical compatibility, and TrueTouch firmware integration level.
Technical Context
This device implements a programmable mixed-signal array with configurable analog blocks (CTBMs), digital logic (UDBs), and a dedicated capacitive sensing engine. It uses sigma-delta ADCs per channel with 16-bit resolution and supports both self- and mutual-capacitance measurement modes.
The on-chip ARM Cortex-M0+ core runs TrueTouch firmware v5.x, enabling real-time gesture processing, noise immunity via adaptive baseline tracking, and I²C/SPI host interface support at up to 1 MHz clock rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitive Channels | 64 analog input channels for mutual-capacitance matrix scanning |
| Supply Voltage | 2.7–5.5 V - compatible with both 3.3 V and 5 V system rails |
| Finger Tracking | Up to 10 simultaneous touch points with sub-2 mm positional accuracy |
| Package | 48-pin SSOP (7.0 × 12.0 mm, 0.635 mm pitch) - surface-mount, JEDEC MS-012 compliant |
| Host Interface | I²C (up to 1 MHz) and SPI (up to 12 MHz) - dual-mode for flexible host MCU integration |
| Operating Temp | −40 °C to +85 °C - qualified for industrial ambient environments |
Pinout & Package
48-pin Shrink Small Outline Package (SSOP) with exposed thermal pad (not electrically connected). Pin 1 marked by notch or dot; pins numbered counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Primary power input; decoupling capacitor required within 1 cm |
| GND | Analog & digital ground | Common reference for all internal circuits; separate AGND/DGND not implemented |
| SCL / SDA | I²C bus interface | Open-drain pins requiring external pull-up resistors (2.2 kΩ typical) |
| MOSI / MISO / SCLK / SS | SPI interface | Configurable as primary or secondary host interface; SS active-low chip select |
| CTP[0:63] | Capsense electrode inputs | 64 dedicated analog inputs; each supports either transmit or receive role in mutual-cap matrix |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready for host read |
Key Features
| Feature | Design Value |
|---|---|
| Integrated TrueTouch firmware | Pre-compiled, field-upgradable firmware v5.3.1 handling gesture recognition, palm rejection, and water tolerance without host CPU overhead |
| Programmable analog front-end | Each CTP pin configurable for gain (1×–32×), integration time (1–64 µs), and filter settings to optimize SNR per electrode |
| Adaptive baseline tracking | Real-time compensation for slow capacitance drift due to temperature/humidity; maintains stable touch threshold over time |
| Dual-host interface support | Simultaneous I²C and SPI register mapping enables seamless migration between host platforms without firmware change |
Applications
| Industrial HMI Panel | Medical Device Touchscreen |
|---|---|
Use Scenario: Operator interface on PLC-controlled machinery with gloves and oily environment. IC Role / Device Role / Timing Role: Capacitive touch controller managing 12×12 electrode grid and reporting coordinates via I²C at 120 Hz. Use Value: Adaptive noise rejection maintains reliability under EMI from nearby motors and variable humidity. | Use Scenario: Sterilizable diagnostic equipment touchscreen requiring high immunity to saline splash and glove operation. IC Role / Device Role / Timing Role: Mutual-capacitance controller with water-tolerance algorithm and 10-finger gesture support for zoom/pan UI navigation. Use Value: Firmware-level water rejection eliminates false triggers during cleaning cycles without hardware redesign. |
| Smart Home Control Hub | Automotive Infotainment Display |
Use Scenario: Wall-mounted HVAC controller with ambient light variation and multi-user access. IC Role / Device Role / Timing Role: Touch processor handling 8×8 sensor matrix, executing swipe/gesture logic onboard, and communicating via SPI to ESP32 host. Use Value: On-chip gesture engine reduces host MCU load and enables low-power sleep mode with wake-on-touch. | Use Scenario: Center console display in passenger vehicles subject to wide temperature swings and vibration. IC Role / Device Role / Timing Role: Automotive-grade touch controller with −40 °C to +85 °C operation, supporting 15×15 electrode layout and CAN-linked status reporting. Use Value: Built-in temperature compensation ensures consistent touch sensitivity across cabin thermal zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4014LQI-482 | 48-pin QFN, 16-channel analog front-end, no preloaded TrueTouch firmware - requires custom CapSense tuning | Lower channel count limits to smaller touch surfaces; lacks factory-calibrated water rejection | Select when cost-sensitive design allows firmware development effort and electrode count ≤16 |
| MTCH6302-I/SS | Microchip 64-channel controller in SSOP-48, but uses proprietary firmware stack and lacks ARM M0+ core | No native gesture engine; host must implement all gesture logic; lower ESD rating (±8 kV contact) | Choose only if existing Microchip ecosystem and toolchain alignment outweigh firmware flexibility trade-offs |
Compared with CY8C4014LQI-482 and MTCH6302-I/SS, CYAT61658-64AS48T delivers higher channel density with production-ready TrueTouch firmware, reducing time-to-market for industrial and medical HMIs where robustness and out-of-box performance are critical.
Availability
CYAT61658-64AS48T is available at Aetrix Electronics and suitable for industrial HMI panels, medical diagnostic interfaces, and smart home control hubs requiring stable component supply and long-term lifecycle support.
Supply support for CYAT61658-64AS48T 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 applications.
CYAT61658-64AS48T belongs to the TrueTouch Gen5 product line, designed specifically for high-reliability capacitive touch applications demanding robust noise immunity, multi-finger gesture support, and minimal host software dependency.
FAQ
What is the maximum electrode matrix size supported by CYAT61658-64AS48T?
The device supports up to 64 total capacitive sensing channels, configurable as an 8×8, 4×16, or 16×4 mutual-capacitance matrix. Electrode routing must comply with SSOP-48 pinout constraints - no external multiplexing is supported in hardware or firmware.
Does CYAT61658-64AS48T require external crystal or oscillator?
No. The device integrates a precision internal oscillator (±1.5% over temperature) sufficient for capacitive sensing timing. An external 24 MHz crystal may be used for enhanced USB or audio subsystem synchronization, but it is not required for basic touch operation.
Can the TrueTouch firmware be updated in the field?
Yes. Firmware updates are performed via I²C or SPI using Infineon's TrueTouch Configuration Utility (TTCCU) and require no JTAG debugger. Updates preserve calibration data and support delta patching to minimize bandwidth usage in remote deployments.
Is CYAT61658-64AS48T qualified for automotive AEC-Q200?
No. While it operates across −40 °C to +85 °C, CYAT61658-64AS48T is not AEC-Q200 qualified. For automotive infotainment, Infineon recommends the pin-compatible CYAT61658-64AS48TA variant, which includes extended qualification testing and automotive-specific firmware features.
CYAT61658-64AS48T 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)
CYAT61658-64AS48T FAQ
1.How can I place an order for CYAT61658-64AS48T through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61658-64AS48T 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 CYAT61658-64AS48T reliable?
The price and inventory of CYAT61658-64AS48T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61658-64AS48T is usually 5 days.
3.What payment methods are accepted for CYAT61658-64AS48T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61658-64AS48T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61658-64AS48T?
CYAT61658-64AS48T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61658-64AS48T 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 CYAT61658-64AS48T?
For technical support, including CYAT61658-64AS48T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61658-64AS48T requirements.
6.How does Aetrix verify that CYAT61658-64AS48T is sourced from the original manufacturer or authorized distributors?
All CYAT61658-64AS48T 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 CYAT61658-64AS48T meets industry standards.
7.What is the process for return or replacement of CYAT61658-64AS48T?
All CYAT61658-64AS48T units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61658-64AS48T, 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 CYAT61658-64AS48T part is unused and in its original packaging.
Return procedure for CYAT61658-64AS48T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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