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Infineon Technologies CYAT61652-64AS48
- Part No.:
- CYAT61652-64AS48
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61652-64AS48.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,799
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Product details
Overview
CYAT61652-64AS48 from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, 16-bit sigma-delta ADC, and integrated ARM Cortex-M0+ MCU core operating at up to 48 MHz. It supports mutual-capacitance sensing for projected capacitive touch panels up to 10.1-inch diagonal in automotive infotainment displays.
For engineers reviewing the CYAT61652-64AS48 datasheet, CYAT61652-64AS48 pinout, CYAT61652-64AS48 application, or CYAT61652-64AS48 equivalent, key selection criteria include channel count, integrated MCU architecture, I²C/SPI interface support, ESD immunity (±15 kV air, ±8 kV contact), and AEC-Q100 Grade 2 qualification for automotive use.
Technical Context
This device integrates a programmable analog signal chain with configurable IDACs and op-amps, enabling adaptive noise rejection in high-EMI environments such as vehicle cabins. Its firmware-executed touch algorithm runs on the embedded Cortex-M0+, supporting real-time gesture processing including multi-finger swipe, pinch-to-zoom, and hover detection.
The TrueTouch architecture employs spread-spectrum modulation and dynamic baseline tracking to maintain stable operation across temperature ranges from −40°C to +105°C. It delivers 120 Hz report rate at full 64-sensor resolution with <1.5% linearity error and <0.5 mm positional accuracy under typical panel stackups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 64 analog input channels - supports up to 64×64 mutual-capacitance sensor grids for high-resolution touchscreens |
| ADC Resolution | 16-bit sigma-delta ADC - enables >90 dB SNR for robust finger detection amid display noise |
| MCU Core | ARM Cortex-M0+ @ 48 MHz - executes proprietary touch firmware and host communication without external processor |
| ESD Rating | ±15 kV HBM, ±8 kV IEC 61000-4-2 contact - eliminates need for external TVS diodes in most automotive touch modules |
| Operating Temp | −40°C to +105°C - qualified per AEC-Q100 Grade 2 for dashboard and center-stack integration |
| Interface | I²C (up to 1 MHz) and SPI (up to 12 MHz) - allows flexible host processor pairing with low-latency command/response |
Pinout & Package
64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad; pin-compatible with CYAT61652-64AS48 family variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply rail | 1.71–3.6 V tolerant - interfaces directly with 1.8 V or 3.3 V host processors |
| VDDA | Analog supply | Separate 2.7–3.6 V rail - isolates sensitive analog front-end from digital switching noise |
| SCL/SDA | I²C bus interface | Open-drain, 3.3 V compatible - supports standard and fast-mode I²C for host synchronization |
| CSN/SCLK/MOSI/MISO | SPI interface | Full-duplex SPI with hardware CS control - enables deterministic timing for high-frame-rate touch reporting |
| INT | Interrupt output | Active-low open-drain - signals host only on touch event or configuration change, minimizing polling overhead |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ARM Cortex-M0+ | Enables field-upgradable touch firmware without external microcontroller or flash memory |
| Dynamic Baseline Tracking | Maintains stable touch sensitivity across condensation, glove use, and temperature drift without recalibration |
| Spread-Spectrum Modulation | Reduces coupling from LCD source drivers and DC-DC converters by spreading excitation energy across frequency band |
| AEC-Q100 Grade 2 | Validated for automotive interior applications requiring reliability at 105°C junction temperature |
Applications
| Automotive Infotainment Display | Industrial HMI Panel |
|---|---|
Use Scenario: Touchscreen in vehicle center console with ambient temperature swings and high EMI from powertrain electronics. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing mutual-capacitance sensing, gesture decoding, and host interface timing. Use Value: Delivers consistent 120 Hz report rate and ±0.5 mm positional accuracy despite 105°C ambient and 15 kV ESD events. | Use Scenario: Operator interface on factory-floor PLC control cabinet exposed to dust, vibration, and glove operation. IC Role / Device Role / Timing Role: Standalone touch controller handling multi-touch gestures and proximity wake-up via dedicated interrupt signaling. Use Value: Dynamic baseline tracking maintains responsiveness during condensation and partial sensor coverage from gloves or contaminants. |
| Medical Diagnostic Tablet | Smart Appliance Control Panel |
Use Scenario: Sterile-use tablet with sealed glass overlay and requirement for glove compatibility and high ESD immunity. IC Role / Device Role / Timing Role: Touch acquisition engine performing real-time noise filtering and adaptive thresholding before data transmission. Use Value: 16-bit ADC resolution and spread-spectrum excitation ensure reliable detection through 3 mm cover lens and latex/nitrile gloves. | Use Scenario: Oven or refrigerator control panel with curved glass, backlight interference, and frequent cleaning cycles. IC Role / Device Role / Timing Role: Integrated touch controller executing calibrated self-test routines and moisture compensation algorithms. Use Value: On-chip temperature compensation and auto-zero calibration eliminate manual recalibration after thermal cycling or surface wetting. |
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 MXT642E | 64-channel, 32-bit RISC core, no integrated ARM MCU - requires external host for gesture processing | Lacks AEC-Q100 qualification; rated for industrial temp only (−40°C to +85°C) | Preferred where cost-sensitive industrial HMIs prioritize raw sensor performance over automotive compliance |
| STMicroelectronics STMPE811 | 8-channel, 12-bit ADC, no integrated MCU - designed for simple resistive/capacitive overlays, not mutual-capacitance panels | Targeted at low-complexity UIs (e.g., 4-button keypad), not multi-touch displays | Only suitable for entry-level touch applications with ≤10 sensors and no gesture requirements |
Compared with MXT642E and STMPE811, CYAT61652-64AS48 uniquely combines AEC-Q100 Grade 2 qualification, 64-channel mutual-capacitance support, and embedded Cortex-M0+ firmware execution-enabling single-chip automotive-grade touch solutions without external processing or qualification overhead.
Availability
CYAT61652-64AS48 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial HMI panels, medical diagnostic tablets, and smart appliance control panels requiring stable component supply and long-term lifecycle assurance.
Supply support for CYAT61652-64AS48 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, sensing, and security solutions for automotive, industrial, and IoT markets.
CYAT61652-64AS48 belongs to the TrueTouch family, engineered specifically for high-reliability capacitive touch applications in harsh environments where ESD resilience, temperature stability, and automotive qualification are mandatory.
FAQ
What is the maximum supported sensor grid size for CYAT61652-64AS48?
The CYAT61652-64AS48 supports up to 64 transmit and 64 receive lines, enabling a maximum mutual-capacitance grid of 64×64 sensors. This corresponds to full-HD resolution touch sensing on displays up to 10.1 inches diagonal with typical ITO trace pitch and cover lens thickness.
Does CYAT61652-64AS48 require external flash memory for firmware storage?
No. The device integrates 256 KB of on-chip flash memory and 32 KB of SRAM, sufficient to store the complete TrueTouch firmware image and runtime variables. Firmware updates are performed in-system via I²C or SPI without external memory components.
Can CYAT61652-64AS48 operate with a 1.8 V host interface while using 3.3 V for analog sensing?
Yes. VDDIO (1.71–3.6 V) and VDDA (2.7–3.6 V) are independently powered. This allows direct connection to 1.8 V host processors via I²C/SPI while maintaining optimal analog performance with a dedicated 3.3 V analog supply.
Is the thermal pad on the 64-pin QFN package electrically connected or ground-referenced?
The exposed thermal pad is internally connected to VSSA (analog ground) and must be soldered to a PCB thermal pad tied to the system's analog ground plane. This ensures optimal thermal dissipation and minimizes analog reference noise coupling into the 16-bit ADC path.
CYAT61652-64AS48 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)
CYAT61652-64AS48 FAQ
1.How can I place an order for CYAT61652-64AS48 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61652-64AS48 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 CYAT61652-64AS48 reliable?
The price and inventory of CYAT61652-64AS48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61652-64AS48 is usually 5 days.
3.What payment methods are accepted for CYAT61652-64AS48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61652-64AS48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61652-64AS48?
CYAT61652-64AS48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61652-64AS48 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 CYAT61652-64AS48?
For technical support, including CYAT61652-64AS48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61652-64AS48 requirements.
6.How does Aetrix verify that CYAT61652-64AS48 is sourced from the original manufacturer or authorized distributors?
All CYAT61652-64AS48 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 CYAT61652-64AS48 meets industry standards.
7.What is the process for return or replacement of CYAT61652-64AS48?
All CYAT61652-64AS48 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61652-64AS48, 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 CYAT61652-64AS48 part is unused and in its original packaging.
Return procedure for CYAT61652-64AS48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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