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Infineon Technologies CY8C4024LQI-S411T
- Part No.:
- CY8C4024LQI-S411T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY8C4024LQI-S411T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24SQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,315
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Product details
Overview
CY8C4024LQI-S411T from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 24 KB flash, 4 KB SRAM, and integrated CAPSENSE™ capacitive touch-sensing engine. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode at 2.5 µA, and includes two reconfigurable serial communication blocks (SCBs) for I²C/SPI/UART, five 16-bit TCPWMs, and programmable analog blocks including dual IDACs and low-power comparators. It targets embedded human-interface applications requiring robust touch control and mixed-signal integration.
For engineers reviewing the CY8C4024LQI-S411T datasheet, CY8C4024LQI-S411T pinout, CY8C4024LQI-S411T application, or CY8C4024LQI-S411T equivalent, key selection criteria include its 24-pin QFN package, CAPSENSE™ sigma-delta SNR >5:1, SmartSense auto-tuning capability, 48 MHz CPU clock, and compatibility with ModusToolbox™ and PSoC™ Creator development environments.
Technical Context
The CY8C4024LQI-S411T implements a single-layer AHB-Lite interconnect between its Cortex®-M0+ core and peripherals, enabling deterministic access to memory and I/O. Its analog subsystem integrates a dedicated capacitance-to-digital sigma-delta converter (CSD) block with hardware-accelerated touch scanning and noise rejection, plus two current DACs usable for sensor biasing or CAPSENSE™ shield drive.
Digital resources include five TCPWM blocks supporting center-aligned PWM, comparator-triggered kill signals for motor control safety, and two SCBs that can be independently configured as I²C master/slave, SPI master/slave, or UART transceivers - all runtime-reconfigurable without reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max, single-cycle multiply - enables real-time firmware execution with minimal latency for touch response and sensor fusion. |
| Memory | 24 KB flash (with read accelerator), 4 KB SRAM - sufficient for CAPSENSE™ firmware + application logic in compact embedded nodes. |
| Capacitive Sensing | CAPSENSE™ v2 with sigma-delta CSD, SNR >5:1, SmartSense auto-tuning - delivers reliable touch detection under moisture and EMI without manual calibration. |
| Low-Power Modes | Deep Sleep mode draws 2.5 µA digital system current while retaining RAM and operational comparators - ideal for battery-powered wake-on-touch systems. |
| Communication | 2 × SCBs supporting I²C/SPI/UART concurrently - allows simultaneous host interface and sensor bus management on one chip. |
| Timing & PWM | 5 × 16-bit TCPWM blocks with center-aligned, edge-aligned, and pseudo-random modes - supports motor control, LED dimming, and timing-critical signal generation. |
| Analog Peripherals | 2 × low-power comparators (active in Deep Sleep), 2 × IDACs (up to 2 mA each) - enables always-on proximity sensing and programmable sensor excitation. |
Pinout & Package
This device is housed in a 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch) with wettable flank terminations, optimized for automated optical inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and GPIOs - supports single-rail operation across industrial and consumer voltage ranges. |
| VSS | Digital ground | Reference return path for digital circuitry; must be connected to system ground plane with low-impedance routing. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external components unless debounced externally. |
| SWDCLK / SWDIO | Serial Wire Debug interface | Two-pin debug port supporting full programming, breakpoint, and trace - eliminates need for JTAG header space and simplifies production test access. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7] | Programmable GPIOs | All 24 pins support CAPSENSE™, analog input/output, or digital functions; drive strength and slew rate configurable per pin in firmware. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning effort and maintains performance across temperature/humidity drift. |
| Runtime-reconfigurable SCBs | Each SCB can switch between I²C, SPI, and UART protocols in firmware - reduces BOM count and enables flexible peripheral assignment post-design. |
| Deep Sleep with active analog | Comparators and CSD remain functional during 2.5 µA Deep Sleep - enables ultra-low-power wake-on-touch or wake-on-event without MCU wake-up overhead. |
| Programmable I/O matrix | GPIOs route to any digital or analog peripheral via configurable interconnect - decouples pin assignment from hardware layout, accelerating prototype iteration. |
| Integrated ROM bootloader | 8 KB ROM contains factory-programmed boot code supporting UART/I²C-based firmware updates - eliminates need for external programmer in field upgrades. |
Applications
| Home Appliance Control Panel | Industrial HMI Keypad |
|---|---|
Use Scenario: Touch-enabled oven control panel exposed to steam, grease, and frequent cleaning. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scan, managing display backlight PWM, and communicating with main controller via I²C. Use Value: Sigma-delta CSD achieves >5:1 SNR and water tolerance, enabling reliable operation without mechanical buttons or overlay shielding. | Use Scenario: Dust- and vibration-prone operator interface on factory-floor machinery. IC Role / Device Role / Timing Role: Standalone HMI controller handling button emulation, status LED sequencing, and CAN bus gateway logic (via SCB + external transceiver). Use Value: Programmable drive strength and slew rate allow robust GPIO signaling over long traces; Deep Sleep mode extends battery life in portable service tools. |
| Smart Thermostat Interface | Medical Device Touch Overlay |
Use Scenario: Battery-powered wall-mounted thermostat with ambient light sensing and touch slider. IC Role / Device Role / Timing Role: System-on-chip managing capacitive slider, temperature ADC, RTC, and BLE connectivity (via SCB + external module). Use Value: 2.5 µA Deep Sleep with active comparators enables wake-on-touch while preserving multi-year coin-cell battery life. | Use Scenario: Sterilizable touch interface on infusion pump with glove-compatible operation. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ processor offloading touch processing from main safety-certified MCU. Use Value: Hardware-accelerated SmartSense ensures consistent sensitivity across repeated autoclave cycles without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4024LQI-S402 | Same die, 16 KB flash / 2 KB SRAM; no LCD segment drive capability | Suitable for simpler touch-only designs without display integration | Select when memory footprint and cost are constrained and LCD functionality is unused. |
| STM32G031F8P6 | Arm® Cortex®-M0+, 64 KB flash, no integrated CAPSENSE™; requires external touch controller or software-based solution | Requires additional BOM and firmware effort for comparable touch performance | Choose only if existing STM32 toolchain familiarity outweighs CAPSENSE™ integration benefit and power efficiency loss. |
Compared with CY8C4024LQI-S411T, the S402 offers lower memory and cost but omits LCD drive; the STM32G031 lacks hardware touch acceleration, increasing firmware complexity and reducing SNR margin in noisy environments.
Availability
CY8C4024LQI-S411T is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI keypads, smart thermostats, and medical device touch overlays requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4024LQI-S411T 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 ICs, and embedded controllers, with global R&D and manufacturing infrastructure.
The PSoC™ 4000S product line delivers programmable mixed-signal MCUs targeting cost-sensitive, low-power human-interface applications where integrated CAPSENSE™, flexible routing, and rapid prototyping are critical design requirements.
FAQ
Does CY8C4024LQI-S411T support USB device functionality?
No. This part does not include a USB PHY or USB controller. Communication is limited to the two SCBs supporting I²C, SPI, and UART protocols. For USB connectivity, an external USB-to-UART bridge or migration to a PSoC™ 4100S or PSoC™ 6 device is required.
What development tools are officially supported for CY8C4024LQI-S411T?
Infineon officially supports both ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only, schematic-driven). The CY8CKIT-145-40XX prototyping kit provides direct hardware access to all 24 GPIOs and includes onboard MiniProg4 debugger/programmer compatible with both IDEs.
Can the CAPSENSE™ block operate independently of the CPU core?
Yes. The CAPSENSE™ CSD block runs autonomously using dedicated hardware sequencers and DMA. It can perform full touch scans and generate interrupts or wakeup events while the CPU remains in Deep Sleep mode, consuming only 2.5 µA total system current.
Is the 24-pin QFN package RoHS-compliant and halogen-free?
Yes. The CY8C4024LQI-S411T uses a lead-free, RoHS-compliant, and halogen-free 24-pin QFN package (JEDEC MO-220, variant VVAA) with NiPdAu surface finish and wettable flanks, qualified per JEDEC J-STD-020 moisture sensitivity level 3.
CY8C4024LQI-S411T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4000S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 19
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4024LQI-S411T FAQ
1.How can I place an order for CY8C4024LQI-S411T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4024LQI-S411T 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 CY8C4024LQI-S411T reliable?
The price and inventory of CY8C4024LQI-S411T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4024LQI-S411T is usually 5 days.
3.What payment methods are accepted for CY8C4024LQI-S411T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4024LQI-S411T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4024LQI-S411T?
CY8C4024LQI-S411T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4024LQI-S411T 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 CY8C4024LQI-S411T?
For technical support, including CY8C4024LQI-S411T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4024LQI-S411T requirements.
6.How does Aetrix verify that CY8C4024LQI-S411T is sourced from the original manufacturer or authorized distributors?
All CY8C4024LQI-S411T 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 CY8C4024LQI-S411T meets industry standards.
7.What is the process for return or replacement of CY8C4024LQI-S411T?
All CY8C4024LQI-S411T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4024LQI-S411T, 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 CY8C4024LQI-S411T part is unused and in its original packaging.
Return procedure for CY8C4024LQI-S411T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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