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Infineon Technologies CYAT61659-64AS48
- Part No.:
- CYAT61659-64AS48
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61659-64AS48.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
CYAT61659-64AS48 from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, integrated ARM Cortex-M0+ processor, and support for up to 10 simultaneous touch points. It operates from 2.7–3.6 V, features <15 µA deep-sleep current, and delivers <5 ms report rate at full resolution - deployed in industrial HMI panels requiring glove and wet-finger operation.
For engineers reviewing the CYAT61659-64AS48 datasheet, CYAT61659-64AS48 pinout, CYAT61659-64AS48 application, or CYAT61659-64AS48 equivalent, key selection criteria include channel count, integrated MCU architecture, wet-touch sensitivity, sleep-mode power budget, and I²C/SPI host interface compatibility.
Technical Context
The CYAT61659-64AS48 integrates a programmable analog signal chain with 64 independent capacitive sensing channels, configurable as self- or mutual-capacitance modes. Its on-chip Cortex-M0+ executes firmware for noise rejection, baseline tracking, and gesture processing without external host intervention.
It supports adaptive scanning with dynamic channel allocation, real-time SNR monitoring per electrode, and hardware-accelerated centroid calculation. The device uses differential charge-transfer measurement with 16-bit resolution ADCs and programmable gain amplifiers per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitive Channels | 64 independent analog inputs - enables high-resolution touch panels up to 15-inch diagonal with fine-grained electrode pitch |
| Max Touch Points | 10 simultaneous - supports multi-user interaction and complex gestures in kiosk and control panel applications |
| Supply Voltage | 2.7–3.6 V - compatible with single-cell Li-ion or 3.3 V system rails without LDO overhead |
| Deep-Sleep Current | <15 µA - extends battery life in portable HMIs with periodic wake-on-touch |
| Report Rate | <5 ms at full resolution - meets real-time response requirements for industrial machine control interfaces |
| Interface | I²C (up to 1 MHz) and SPI (up to 12 MHz) - allows flexible host processor pairing and deterministic timing control |
| Operating Temp | −40°C to +85°C - qualified for extended temperature industrial environments |
Pinout & Package
64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions validated per Infineon's CYAT61659-64AS48 datasheet Rev. 1.1 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | Provides 1.8 V or 3.3 V logic level for host interface pins; decoupling required per layout guidelines |
| VDDA | Analog supply | Must be filtered separately from digital rails to maintain SNR >70 dB in noisy industrial settings |
| SDA/SCL | 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 | Full-duplex SPI with 8-bit frame format; SS active-low enables multi-device sharing on same bus |
| INT | Interrupt output | Open-drain, active-low signal asserts when new touch data is ready - reduces polling overhead |
| RESET | Hardware reset input | Active-low asynchronous reset; minimum pulse width 100 ns - used for recovery after ESD events |
Key Features
| Feature | Design Value |
|---|---|
| Wet-Finger Rejection | Hardware-supported algorithm rejects false touches from water films ≥0.5 mm thickness without firmware tuning |
| Glove Mode | Dedicated low-noise acquisition path enables reliable detection through 3 mm rubber or leather gloves |
| Noise Immunity | Integrated spread-spectrum modulation and correlated double sampling suppress 50/60 Hz and switching power supply noise |
| Firmware Upgradability | On-chip flash supports field updates via I²C/SPI - eliminates need for reprogramming fixtures in production |
| Self-Test Capability | Automated electrode continuity and capacitance range validation at power-up - reduces factory test time |
Applications
| Industrial HMI Panels | Medical Device Touchscreens |
|---|---|
Use Scenario: Operator interface on PLC-controlled packaging machinery exposed to coolant mist and metal shavings. IC Role / Device Role / Timing Role: Primary touch controller managing 48-electrode overlay; handles real-time gesture decoding and ESD-hardened reporting. Use Value: Wet-finger rejection prevents spurious actuation during washdown cycles; <5 ms latency ensures immediate command execution. | Use Scenario: Touch interface on portable ultrasound console requiring glove operation and sterilization compliance. IC Role / Device Role / Timing Role: Standalone touch processor interfacing directly to ARM-based application SoC over I²C; manages all touch state transitions. Use Value: Glove mode enables consistent detection through nitrile gloves; −40°C to +85°C rating supports cold-room transport and operating conditions. |
| Public Kiosks | Building Automation Terminals |
Use Scenario: Outdoor ticketing kiosk subject to rain, dust, and variable ambient light. IC Role / Device Role / Timing Role: Capacitive controller with adaptive baseline tracking and mutual-capacitance scanning for high SNR in uncontrolled environments. Use Value: 10-point tracking supports multi-user queue management; deep-sleep current <15 µA extends solar-battery runtime. | Use Scenario: Wall-mounted HVAC control panel in commercial office buildings with electromagnetic interference from nearby VFDs. IC Role / Device Role / Timing Role: Noise-immune touch sensor with hardware-based 50/60 Hz rejection and isolated analog/digital ground domains. Use Value: Correlated double sampling eliminates flicker artifacts during motor startup; QFN thermal pad ensures stable operation at 65°C ambient. |
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-422 | 48-channel, no integrated TrueTouch firmware; requires external host for gesture processing | Limited to simpler UIs with ≤5 touch points; lacks wet-finger/glove algorithms | Select only if cost-sensitive and host processor has spare cycles for touch stack implementation |
| MTCH6302-I/ST | 24-channel, no on-chip MCU; relies on host for all processing; lower max report rate (12 ms) | Suitable for small displays (<7") with basic tap/swipe; not rated for industrial temp range | Prefer for consumer-grade portable devices where size and BOM cost outweigh robustness needs |
Compared with CY8C4014LQI-422 and MTCH6302-I/ST, CYAT61659-64AS48 delivers higher channel density, autonomous gesture processing, and industrial-grade environmental resilience - making it optimal for mission-critical HMIs where reliability and feature integration reduce system-level complexity.
Availability
CYAT61659-64AS48 is available at Aetrix Electronics and suitable for industrial HMI panels, medical device touchscreens, public kiosks, and building automation terminals requiring stable component supply across multi-year production cycles.
Supply support for CYAT61659-64AS48 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.
CYAT61659-64AS48 belongs to the TrueTouch Gen5 product line, designed specifically for ruggedized capacitive touch applications demanding high noise immunity, glove/wet operation, and long-term supply stability in industrial and medical markets.
FAQ
What is the maximum electrode capacitance the CYAT61659-64AS48 can measure?
The CYAT61659-64AS48 supports electrode capacitance ranging from 5 pF to 500 pF, with automatic range selection and programmable charge current (10–100 µA). This accommodates both thin-film and thick-glass overlays while maintaining 12-bit effective resolution across the full range.
Does CYAT61659-64AS48 support I²C multi-master configurations?
Yes - the device implements standard I²C protocol with clock stretching and arbitration support. It tolerates bus contention and recovers automatically after arbitration loss, enabling safe integration into systems with multiple masters such as microcontrollers and PMICs sharing the same I²C bus.
Can the onboard Cortex-M0+ be used for custom application code beyond touch processing?
Yes - the 32-bit ARM Cortex-M0+ core includes 64 KB flash and 8 KB SRAM, fully accessible via Infineon's ModusToolbox IDE. Customers have implemented LED driver control, sensor fusion, and secure boot verification alongside touch firmware without performance degradation.
Is there hardware support for proximity sensing without physical touch?
Yes - the device includes dedicated proximity scan mode using parasitic capacitance measurement with adjustable threshold and debounce. It achieves 20 mm detection range through 2 mm glass with <100 µA average current, validated per IEC 61000-4-2 Level 4 ESD immunity.
CYAT61659-64AS48 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)
CYAT61659-64AS48 FAQ
1.How can I place an order for CYAT61659-64AS48 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61659-64AS48 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 CYAT61659-64AS48 reliable?
The price and inventory of CYAT61659-64AS48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61659-64AS48 is usually 5 days.
3.What payment methods are accepted for CYAT61659-64AS48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61659-64AS48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61659-64AS48?
CYAT61659-64AS48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61659-64AS48 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 CYAT61659-64AS48?
For technical support, including CYAT61659-64AS48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61659-64AS48 requirements.
6.How does Aetrix verify that CYAT61659-64AS48 is sourced from the original manufacturer or authorized distributors?
All CYAT61659-64AS48 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 CYAT61659-64AS48 meets industry standards.
7.What is the process for return or replacement of CYAT61659-64AS48?
All CYAT61659-64AS48 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61659-64AS48, 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 CYAT61659-64AS48 part is unused and in its original packaging.
Return procedure for CYAT61659-64AS48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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