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Infineon Technologies CYAT61658-64AS48
- Part No.:
- CYAT61658-64AS48
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61658-64AS48.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,161
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Product details
Overview
CYAT61658-64AS48 from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, 12-bit SAR ADC, and integrated ARM Cortex-M0+ core running at up to 48 MHz. It supports mutual-capacitance sensing for projected capacitive touch panels up to 10-inch diagonal, delivers <15 µs per sensor scan, and operates from 1.71–5.5 V supply. Used in industrial HMI panels requiring glove and wet-finger operation.
For engineers reviewing the CYAT61658-64AS48 datasheet, CYAT61658-64AS48 pinout, CYAT61658-64AS48 application, or CYAT61658-64AS48 equivalent, key selection criteria include channel count, scan speed, integrated MCU architecture, power supply range, and I²C/SPI interface compatibility with host processors.
Technical Context
This device integrates a dedicated capacitive-sensing analog front-end (AFE) with configurable scan engine, programmable gain amplifiers, and noise suppression logic optimized for high-SNR touch acquisition in EMI-prone environments. The embedded Cortex-M0+ executes firmware for gesture recognition, baseline tracking, and report generation without host intervention.
It supports both I²C (up to 1 MHz) and SPI (up to 12 MHz) host interfaces, includes 32 KB flash and 8 KB SRAM, and features hardware-accelerated digital filtering including moving average and median filters applied per-sensor prior to reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Touch Channels | 64 analog input channels support full matrix scanning of up to 10-inch projected capacitive panels. |
| Scan Speed | <15 µs per sensor enables sub-10 ms full-frame refresh at 100 Hz reporting rate. |
| ADC Resolution | 12-bit SAR ADC provides 4096-level capacitance measurement resolution for fine touch sensitivity control. |
| Core Processor | ARM Cortex-M0+ @ 48 MHz handles real-time touch processing, gesture classification, and host communication. |
| Supply Voltage | 1.71–5.5 V operation allows direct integration with 3.3 V or 5 V system rails without LDO overhead. |
| Interface Options | I²C (1 MHz max) and SPI (12 MHz max) enable flexible host processor pairing in resource-constrained designs. |
Pinout & Package
64-pin QFN package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment validated per Infineon's CYAT61658-64AS48 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/O pins; decoupling required within 10 mm of pin. |
| VDDA | Analog Supply | Provides clean 1.71–5.5 V to AFE and ADC; separate LDO or ferrite-bead filtering recommended. |
| SCL/SDA | I²C Interface | Open-drain bidirectional bus lines; require 2.2 kΩ pull-up to VDDIO for standard-mode operation. |
| MOSI/MISO/SCLK/SS | SPI Interface | Full-duplex 4-wire SPI; SS active-low enables slave select with automatic clock gating on deselect. |
| CTP[0:63] | Capsense Inputs | 64 dedicated analog inputs for mutual-capacitance TX/RX routing; each configurable as drive or sense via firmware. |
Key Features
| Feature | Design Value |
|---|---|
| Glove & Wet-Finger Support | Configurable signal-to-noise ratio and adaptive thresholding enable reliable detection through 3 mm gloves and water-covered surfaces. |
| Hardware-Based Noise Rejection | Dedicated digital filter block applies real-time moving average and median filtering before data transfer to CPU. |
| Self-Test Capability | On-chip diagnostics verify AFE functionality, memory integrity, and sensor continuity during power-up and runtime. |
| Low-Power Active Mode | 1.2 mA typical current draw at 100 Hz scan rate enables battery-powered portable HMIs with >1 week runtime. |
Applications
| Industrial Control Panel | Medical Device Touchscreen |
|---|---|
Use Scenario: Operator interface on PLC-mounted HMI with IP65-rated enclosure and chemical-resistant overlay. IC Role / Device Role / Timing Role: Primary capacitive touch controller managing 48-button + slider layout with real-time gesture decoding. Use Value: Immunity to EMI from nearby VFDs and solenoids ensures stable touch response without firmware recalibration. | Use Scenario: Touch-enabled patient monitor with sterilizable glass front and latex-glove operation requirement. IC Role / Device Role / Timing Role: Standalone touch processor handling multi-touch gestures and palm rejection while offloading host MCU. Use Value: Sub-10 ms latency and wet-finger tolerance meet IEC 62304 Class C software safety requirements. |
| Smart Appliance Interface | Automotive Infotainment Panel |
Use Scenario: Oven/microwave control panel operating across -20°C to +70°C ambient with condensation risk. IC Role / Device Role / Timing Role: Integrated touch controller with temperature-compensated baseline tracking and auto-calibration. Use Value: Maintains consistent touch sensitivity across thermal cycling without manual recalibration events. | Use Scenario: Center-stack infotainment display in passenger vehicle cabin with high ambient light and vibration. IC Role / Device Role / Timing Role: Dedicated touch acquisition engine synchronizing with display frame timing to suppress LCD noise coupling. Use Value: 12-bit ADC resolution and programmable gain enable robust signal capture despite wide dynamic range of finger contact area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4046LQI-483 | 48-channel AFE, no integrated TrueTouch firmware stack; requires external host for gesture processing. | Limited to simpler UIs without complex swipe/gesture logic; lower BOM cost but higher firmware development effort. | Select when touch algorithm is already developed and host MCU has spare cycles for real-time processing. |
| MTCH6302-I/ST | 24-channel AFE, no embedded MCU; relies entirely on host for all processing and reporting. | Suitable only for small displays (<5 inch); lacks hardware noise rejection blocks and self-test capability. | Choose for cost-sensitive consumer devices where touch complexity is low and host resources are abundant. |
Compared with CY8C4046LQI-483 and MTCH6302-I/ST, CYAT61658-64AS48 delivers higher channel density, autonomous gesture execution, and production-ready TrueTouch firmware-reducing host dependency and qualification time for industrial-grade HMIs.
Availability
CYAT61658-64AS48 is available at Aetrix Electronics and suitable for industrial HMI, medical device interfaces, smart appliance controls, and automotive infotainment panels requiring stable component supply and long-term lifecycle support.
Supply support for CYAT61658-64AS48 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 microcontroller solutions for industrial, automotive, and IoT applications.
CYAT61658-64AS48 belongs to the TrueTouch Gen5 product line, engineered specifically for high-reliability capacitive touch systems demanding robust performance in harsh electrical and environmental conditions.
FAQ
What is the maximum supported panel size for CYAT61658-64AS48?
The device supports projected capacitive touch panels up to 10 inches diagonal using its 64-channel AFE in mutual-capacitance mode. Panel size depends on electrode pitch and trace routing; typical layouts achieve 10-inch coverage with 12×12 or 16×16 TX/RX matrices. Larger panels require reduced channel count or multiplexing.
Does CYAT61658-64AS48 support I²C and SPI simultaneously?
No. The interface is selected at boot via hardware strap pins (I²C_SEL and SPI_SEL). Only one interface is active at a time; switching requires reset. Both protocols share the same interrupt output and register map, enabling firmware portability between host platforms.
Is firmware update possible in-system?
Yes. The device supports field firmware updates over I²C or SPI using Cypress-provided bootloader protocol. Updates preserve calibration data and user configuration stored in non-volatile memory. Bootloader occupies fixed 4 KB flash section and cannot be overwritten.
What thermal management provisions exist for the 64-pin QFN package?
The package includes an exposed thermal pad soldered to PCB ground plane. Recommended footprint uses 9×9 array of 0.3 mm diameter thermal vias filled with conductive epoxy to inner ground layers. Junction-to-board thermal resistance is 22°C/W under standard JEDEC 2S2P test conditions.
CYAT61658-64AS48 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)
CYAT61658-64AS48 FAQ
1.How can I place an order for CYAT61658-64AS48 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61658-64AS48 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 CYAT61658-64AS48 reliable?
The price and inventory of CYAT61658-64AS48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61658-64AS48 is usually 5 days.
3.What payment methods are accepted for CYAT61658-64AS48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61658-64AS48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61658-64AS48?
CYAT61658-64AS48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61658-64AS48 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 CYAT61658-64AS48?
For technical support, including CYAT61658-64AS48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61658-64AS48 requirements.
6.How does Aetrix verify that CYAT61658-64AS48 is sourced from the original manufacturer or authorized distributors?
All CYAT61658-64AS48 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 CYAT61658-64AS48 meets industry standards.
7.What is the process for return or replacement of CYAT61658-64AS48?
All CYAT61658-64AS48 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61658-64AS48, 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 CYAT61658-64AS48 part is unused and in its original packaging.
Return procedure for CYAT61658-64AS48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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