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Infineon Technologies CY8C4724LQI-S401
- Part No.:
- CY8C4724LQI-S401
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY8C4724LQI-S401.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,504
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Product details
Overview
CY8C4724LQI-S401 from Infineon Technologies (formerly Cypress Semiconductor) is a programmable 32-bit Arm® Cortex®-M0+ microcontroller in the PSoC 4700S family, integrating MagSense™ inductive sensing and CapSense® capacitive sensing on a single die. It features 48 MHz CPU, 32 KB flash, 4 KB SRAM, up to 16 inductive sensors, and dual reconfigurable SCBs supporting I²C/SPI/UART. It targets metal proximity detection in industrial HMI and touchless control systems.
For engineers reviewing the CY8C4724LQI-S401 datasheet, CY8C4724LQI-S401 pinout, CY8C4724LQI-S401 application, or CY8C4724LQI-S401 equivalent, key selection criteria include its integrated MagSense capability for sub-190 nm metal deflection detection, CapSense Sigma-Delta architecture with >5:1 SNR, Deep Sleep current of 2.5 µA, 1.71–5.5 V operation, and support for SmartIO Boolean logic on GPIOs.
Technical Context
The device implements a tightly coupled Arm Cortex-M0+ core with 48 MHz max frequency, backed by 32 KB flash with Read Accelerator (two wait-state access at full speed) and 4 KB zero-wait-state SRAM. Its analog subsystem includes two low-power comparators operational in Deep Sleep mode, one 10-bit single-slope ADC, and two current DACs referenced to ±5% internal voltage.
Digital resources comprise five 16-bit TCPWM blocks supporting center-aligned, edge-aligned, and pseudo-random PWM modes with comparator-triggered kill signals; two run-time reconfigurable Serial Communication Blocks (SCBs); and SmartIO ports enabling Boolean logic on port-level signals without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz max - enables real-time sensor fusion and deterministic interrupt response in resource-constrained embedded systems. |
| Flash Memory | 32 KB with Read Accelerator - delivers 85% of SRAM-speed instruction fetch performance, reducing code execution latency in sensor polling loops. |
| SRAM | 4 KB, zero wait-state - supports full-speed stack and buffer operations during active sensing and communication tasks. |
| Inductive Sensing | Up to 16 MagSense channels - detects metal objects with <190 nm deflection resolution and built-in software calibration for manufacturing variation compensation. |
| Capacitive Sensing | CapSense Sigma-Delta (CSD) with >5:1 SNR - provides robust water-tolerant touch detection without external shielding or guard traces. |
| Power Modes | Deep Sleep at 2.5 µA digital system current - sustains analog peripherals (comparators, IDACs) while halting CPU and flash, ideal for battery-powered proximity wake-up. |
| Communication | 2 × SCBs, runtime-reconfigurable as I²C/SPI/UART - allows dynamic protocol switching per peripheral interface without firmware reload or pin remapping. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital core, flash, SRAM, and analog blocks via internal regulators. |
| VSS | Ground reference | Common return path for all analog/digital circuits; requires low-impedance PCB connection to minimize noise coupling into MagSense/CapSense. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures defined state on power-up; debounced externally for ESD immunity. |
| P0[0]–P0[7] | Programmable GPIO bank | Supports configurable drive modes, slew rates, and can serve as MagSense coil drivers, CapSense electrodes, or analog inputs. |
| SCB0_SDA / SCB0_SCL | I²C interface pins | Open-drain, 5 V tolerant; internally configurable as SPI/MOSI or UART/RX depending on SCB mode register setting. |
| SWDCLK / SWDIO | Debug interface | Two-wire Serial Wire Debug (SWD) for programming and real-time debugging; operates independently of application firmware state. |
Key Features
| Feature | Design Value |
|---|---|
| MagSense inductive sensing | Enables contactless metal detection with factory-calibrated baseline drift compensation, eliminating manual tuning across production batches. |
| CapSense SmartSense auto-tuning | Hardware-accelerated automatic capacitance baseline adjustment eliminates need for host MCU intervention during environmental changes (e.g., humidity, temperature). |
| SmartIO Boolean logic | Permits combinational logic (AND/OR/XOR) on GPIO signals in hardware, offloading timing-critical signal conditioning from the CPU. |
| TCPWM kill input | Comparator output can directly assert hardware-level PWM shutdown within one clock cycle, meeting functional safety requirements for motor control interlocks. |
| Deep Sleep analog retention | Low-power comparators and IDACs remain active with 2.5 µA total system current, enabling always-on proximity wake-up without external circuitry. |
Applications
| Industrial HMI Buttons | Automotive Proximity Switches |
|---|---|
Use Scenario: Metal pushbuttons mounted behind stainless steel panels in factory control cabinets. IC Role / Device Role / Timing Role: MagSense channel drives LC tank, measures resonance shift induced by button press; CapSense monitors adjacent non-metallic status indicators. Use Value: Eliminates mechanical wear and sealing issues; achieves <190 nm deflection detection through 2 mm panel thickness with no recalibration needed across temperature range. | Use Scenario: Door handle proximity detection for hands-free entry in EVs, operating under condensation and salt exposure. IC Role / Device Role / Timing Role: Dual-mode sensing: MagSense detects hand approach via metal frame perturbation; CapSense verifies presence through dielectric change in wet conditions. Use Value: Maintains >5:1 SNR in rain-soaked environments using CSD architecture; Deep Sleep current enables multi-year battery life in passive keyless entry subsystems. |
| Medical Equipment Touch Panels | Appliance Control Knobs |
Use Scenario: Sterilizable glass-front control panels on infusion pumps requiring glove-compatible operation. IC Role / Device Role / Timing Role: CapSense CSD electrode array scans 12-button grid; MagSense monitors actuator shaft position for tactile feedback confirmation. Use Value: Water tolerance prevents false triggers during wipe-down; SmartSense auto-tunes baseline every 100 ms to compensate for conductive residue buildup. | Use Scenario: Rotating encoder knob on smart oven with metal housing and glass overlay. IC Role / Device Role / Timing Role: MagSense coil pair detects rotational position via ferrous target; CapSense ring senses finger proximity to enable wake-up before rotation. Use Value: Enables zero-power wake-up via Deep Sleep comparator monitoring; TCPWM generates precise 12-bit PWM for LED intensity control synchronized to knob position. |
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 |
|---|---|---|---|
| CY8C4744AZI-S433 | Same PSoC 4700S family, 64-pin TQFP, 36 GPIOs vs. 36 GPIOs, adds USBFS block and 8 KB flash. | Requires USB host/device connectivity; larger package increases PCB area and routing complexity. | Select when USB interface or additional flash for bootloader + application partitioning is required. |
| STM32G071KBT6 | Arm Cortex-M0+, 64 MHz, 128 KB flash, 36 KB SRAM, no integrated MagSense or CapSense IP. | Requires external ICs or custom PCB layout for inductive/capacitive sensing, increasing BOM count and validation effort. | Select when high memory headroom is critical and sensing is implemented via discrete analog front-end or third-party IP. |
Compared with CY8C4724LQI-S401, CY8C4744AZI-S433 offers expanded I/O and USB but sacrifices compact 48-pin footprint, while STM32G071KBT6 provides greater memory and clock speed but lacks native MagSense/CapSense hardware-requiring external components and firmware development to replicate sensing functionality.
Availability
CY8C4724LQI-S401 is available at Aetrix Electronics and suitable for industrial HMI, automotive proximity sensing, medical touch interfaces, and appliance control systems requiring stable component supply, long-term lifecycle support, and qualified sourcing for production programs.
Supply support for CY8C4724LQI-S401 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 global semiconductor leader headquartered in Munich, Germany, delivering power systems, sensing solutions, and microcontrollers for industrial, automotive, and IoT applications.
The PSoC 4700S product line was designed to unify inductive and capacitive sensing in a single programmable SoC, targeting touchless human-machine interfaces where reliability under harsh environmental conditions is mandatory.
FAQ
What development tools are required to program CY8C4724LQI-S401?
PSoC Creator IDE (free Windows-based tool) is required for schematic-driven hardware configuration and firmware generation. It provides drag-and-drop component integration, automatic routing, and pre-verified APIs for MagSense, CapSense, TCPWM, and SCBs. Debugging uses standard ARM SWD via KitProg2 or MiniProg4 programmers; no JTAG adapter is needed.
Does CY8C4724LQI-S401 support hardware encryption or secure boot?
No. CY8C4724LQI-S401 does not include dedicated cryptographic accelerators, TRNG, or secure boot ROM. It relies on software-based AES libraries and external secure elements for advanced security. Its ROM contains only boot loader and configuration routines-not cryptographic keys or secure storage.
Can the MagSense and CapSense blocks operate simultaneously?
Yes. The analog subsystem supports concurrent operation: MagSense channels use dedicated LC oscillator circuitry, while CapSense CSD engine runs on separate sigma-delta modulator. Time-division multiplexing is handled automatically by the hardware sequencer, allowing interleaved scanning without CPU overhead or signal crosstalk.
What is the maximum operating temperature for continuous MagSense operation?
The device is rated for industrial temperature range (–40 °C to +85 °C). MagSense performance remains stable across this range due to on-chip temperature compensation algorithms and factory-trimmed oscillator references; no derating or external thermal management is required for full-spec inductive sensing operation.
CY8C4724LQI-S401 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C4700S
- Packaging:
- Tray
- 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 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4724LQI-S401 FAQ
1.How can I place an order for CY8C4724LQI-S401 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4724LQI-S401 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 CY8C4724LQI-S401 reliable?
The price and inventory of CY8C4724LQI-S401 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4724LQI-S401 is usually 5 days.
3.What payment methods are accepted for CY8C4724LQI-S401?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4724LQI-S401 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4724LQI-S401?
CY8C4724LQI-S401 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4724LQI-S401 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 CY8C4724LQI-S401?
For technical support, including CY8C4724LQI-S401 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4724LQI-S401 requirements.
6.How does Aetrix verify that CY8C4724LQI-S401 is sourced from the original manufacturer or authorized distributors?
All CY8C4724LQI-S401 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 CY8C4724LQI-S401 meets industry standards.
7.What is the process for return or replacement of CY8C4724LQI-S401?
All CY8C4724LQI-S401 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4724LQI-S401, 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 CY8C4724LQI-S401 part is unused and in its original packaging.
Return procedure for CY8C4724LQI-S401:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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