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Infineon Technologies CY8C4024AXI-S402
- Part No.:
- CY8C4024AXI-S402
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
CY8C4024AXI-S402.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 32TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,338
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Product details
Overview
CY8C4024AXI-S402 from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 24 KB flash, 4 KB SRAM, and integrated CAPSENSE™ capacitive sensing engine. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode at 2.5 µA system current, and delivers best-in-class SNR (>5:1) for touch interfaces in consumer HMI and industrial control panels.
For engineers reviewing the CY8C4024AXI-S402 datasheet, CY8C4024AXI-S402 pinout, CY8C4024AXI-S402 application, or CY8C4024AXI-S402 equivalent, key selection criteria include its reconfigurable analog/digital blocks, dual SCB serial interfaces (I²C/SPI/UART), five 16-bit TCPWMs, and hardware-accelerated SmartSense™ auto-tuning for robust wet-finger operation.
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ CPU running at up to 48 MHz, paired with programmable analog blocks including two low-power comparators active in Deep Sleep and a sigma-delta CAPSENSE™ engine. Its digital subsystem includes five TCPWM blocks supporting center-aligned PWM and comparator-triggered kill signals for motor control safety.
Two reconfigurable Serial Communication Blocks (SCBs) provide runtime-selectable I²C, SPI, or UART functionality, while the I/O Subsystem enables any of its 36 GPIOs to serve as CAPSENSE™, analog input, or digital port-each with programmable drive strength, slew rate, and pull-up/down configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables deterministic real-time control with single-cycle multiply for motor timing and sensor fusion. |
| Flash / SRAM | 24 KB flash / 4 KB SRAM - sufficient for CAPSENSE™ firmware + BLE stack integration or small RTOS deployments. |
| Capacitive Sensing | Sigma-delta CAPSENSE™ v2 with SmartSense™ - eliminates manual tuning; achieves >5:1 SNR and water tolerance without external components. |
| Power Modes | Deep Sleep @ 2.5 µA - maintains analog sensing and wake-on-touch capability while preserving battery life in portable devices. |
| Serial Interfaces | 2 × SCBs - each configurable as I²C, SPI, or UART at runtime, enabling flexible peripheral connectivity without pin remapping. |
| PWM Resources | 5 × 16-bit TCPWM - supports center-aligned PWM for motor drives and hardware-synchronized kill signals via comparator inputs. |
| GPIO Count | 36 programmable pins - all support CAPSENSE™, analog, or digital functions; each with configurable drive modes and slew rates. |
Pinout & Package
Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers CPU, memory, and all digital/analog blocks. |
| VSS | Digital ground | Reference return for digital logic and I/O drivers. |
| P0[0]–P0[7] | Port 0 GPIO | Support CAPSENSE™, analog input, or digital I/O; configurable pull-up/down and drive strength. |
| P1[0]–P1[7] | Port 1 GPIO | Same capabilities as Port 0; includes dedicated SWD debug pins (SWDIO/SWCLK). |
| XTAL_IN / XTAL_OUT | 32 kHz WCO interface | Connects to external watch crystal for precise RTC timing and low-power wake-up sources. |
| RESET | Active-low reset | Asynchronous reset input; debounced internally; supports external push-button or supervisor IC assertion. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | Two low-power comparators operational in Deep Sleep mode - enable always-on proximity detection with sub-µA wake-up latency. |
| SmartSense™ Auto-Tuning | Hardware-accelerated calibration - removes manual parameter adjustment for CAPSENSE™ electrodes across temperature/humidity variations. |
| Programmable Digital Logic | Boolean logic on port I/O - implements glue logic (e.g., AND/OR/XOR) without CPU intervention or external gates. |
| Runtime-Configurable SCBs | Two serial blocks independently switch between I²C/SPI/UART - simplifies BOM by eliminating dedicated protocol-specific ICs. |
| LCD Segment Drive | GPIO-based segment driving - supports up to 32-segment LCD without external driver IC in space-constrained displays. |
Applications
| Consumer Touch Panels | Industrial HMI Controls |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on kitchen appliances and smart home panels. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware and managing local display backlight/PWM. Use Value: SmartSense™ ensures reliable operation under condensation or light liquid contact without recalibration. | Use Scenario: Operator interface on PLC-mounted control terminals with ESD-prone environments. IC Role / Device Role / Timing Role: Real-time HMI controller interfacing with RS-485 fieldbus via SCB-configured UART. Use Value: 5.5 V tolerant I/O and programmable slew rates reduce ESD-induced glitches during panel servicing. |
| Portable Medical Devices | Motor Control Interface Modules |
Use Scenario: Battery-powered glucose meters and handheld diagnostic tools with touch UI. IC Role / Device Role / Timing Role: System-on-chip handling sensor acquisition, touch input, and BLE communication. Use Value: Deep Sleep at 2.5 µA extends battery life beyond 1 year on coin-cell power. | Use Scenario: Fan speed controller or small BLDC drive interface with overcurrent protection. IC Role / Device Role / Timing Role: PWM generator and fault monitor using TCPWM kill signal triggered by comparator output. Use Value: Hardware-level shutdown response <100 ns prevents MOSFET shoot-through during overcurrent events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-integrated-capacitive-sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4025AZI-S402 | 28 KB flash, same package and peripherals - adds 4 KB more program storage. | Required when CAPSENSE™ firmware plus BLE stack exceeds 24 KB flash limit. | Select if firmware complexity demands additional non-volatile code space without changing layout. |
| STM32G031K8T6 | No integrated CAPSENSE™; requires external RC network and software library for touch - higher BOM cost and design effort. | Suitable only when touch channel count ≤4 and SNR requirements are relaxed (<3:1). | Choose only when leveraging existing STM32 toolchain and no wet-finger or high-noise immunity needed. |
Compared with CY8C4024AXI-S402, CY8C4025AZI-S402 offers headroom for feature-rich firmware, while STM32G031K8T6 shifts capacitive sensing implementation burden to software and external components - increasing validation time and reducing noise resilience.
Availability
CY8C4024AXI-S402 is available at Aetrix Electronics and suitable for consumer HMI, industrial control panels, portable medical devices, and motor interface modules requiring stable component supply and long-term lifecycle assurance.
Supply support for CY8C4024AXI-S402 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 secure embedded systems, with global R&D and manufacturing infrastructure.
The PSoC™ 4000S product line targets cost-sensitive, low-power embedded applications requiring integrated analog sensing, programmable logic, and robust human-machine interface - especially where capacitive touch reliability under environmental stress is critical.
FAQ
What development tools support CY8C4024AXI-S402 firmware creation?
Infineon provides two primary environments: ModusToolbox™ (cross-platform, Eclipse-based, CLI-friendly) and PSoC™ Creator (Windows-only, schematic-driven IDE). Both include CAPSENSE™ Tuner, Peripheral Driver Library, and pre-verified code examples. MiniProg4 is the recommended programmer/debugger, supporting SWD interface and full flash programming.
Does CY8C4024AXI-S402 support hardware encryption or secure boot?
No. CY8C4024AXI-S402 does not include hardware cryptographic accelerators or secure boot ROM. Flash protection is implemented via lock bits and read-out prevention, but it lacks AES engines, TRNG, or public-key support. For secure firmware updates, external secure elements or software-based signing verification must be implemented.
Can all 36 GPIOs be used simultaneously for CAPSENSE™ sensing?
No. While all GPIOs are CAPSENSE™-capable, practical electrode count is limited by mutual capacitance coupling and scan time. The datasheet specifies up to 28 self-capacitance or 16 mutual-capacitance sensors per device. Using all 36 pins concurrently degrades SNR and increases scan latency beyond real-time UI requirements.
Is the 32 kHz WCO required for Deep Sleep operation?
No. The internal 32 kHz ILO oscillator suffices for Deep Sleep timing and wake-up events. The WCO is optional and improves RTC accuracy to ±20 ppm versus ±5% for ILO - beneficial only when precise timekeeping (e.g., calendar clock) is needed alongside ultra-low-power operation.
CY8C4024AXI-S402 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-LQFP
- Series:
- PSOC™ 4 CY8C4000S
- 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:
- 27
- 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; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4024AXI-S402 FAQ
1.How can I place an order for CY8C4024AXI-S402 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4024AXI-S402 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 CY8C4024AXI-S402 reliable?
The price and inventory of CY8C4024AXI-S402 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4024AXI-S402 is usually 5 days.
3.What payment methods are accepted for CY8C4024AXI-S402?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4024AXI-S402 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4024AXI-S402?
CY8C4024AXI-S402 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4024AXI-S402 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 CY8C4024AXI-S402?
For technical support, including CY8C4024AXI-S402 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4024AXI-S402 requirements.
6.How does Aetrix verify that CY8C4024AXI-S402 is sourced from the original manufacturer or authorized distributors?
All CY8C4024AXI-S402 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 CY8C4024AXI-S402 meets industry standards.
7.What is the process for return or replacement of CY8C4024AXI-S402?
All CY8C4024AXI-S402 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4024AXI-S402, 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 CY8C4024AXI-S402 part is unused and in its original packaging.
Return procedure for CY8C4024AXI-S402:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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