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Infineon Technologies CY8C4024AZI-S403T
- Part No.:
- CY8C4024AZI-S403T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4024AZI-S403T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,376
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Product details
Overview
CY8C4024AZI-S403T from Infineon is a PSoC™ 4000S programmable system-on-chip MCU based on the Arm® Cortex®-M0+ CPU, operating at up to 48 MHz with 32 KB flash and 4 KB SRAM. It integrates CAPSENSE™ capacitive sensing, two SCBs supporting I²C/SPI/UART, five TCPWM blocks, and two low-power comparators active in Deep Sleep mode. It targets embedded human-interface applications such as touch-enabled industrial HMI panels.
For engineers reviewing the CY8C4024AZI-S403T datasheet, CY8C4024AZI-S403T pinout, CY8C4024AZI-S403T application, or CY8C4024AZI-S403T equivalent, key selection criteria include its 36 GPIO count with full CAPSENSE™ pin assignment flexibility, 2.5 µA Deep Sleep current, 10-bit sigma-delta capacitive ADC, SmartSense auto-tuning capability, and dual SCB reconfigurability for mixed-protocol communication stacks.
Technical Context
The device implements a single-layer AHB-Lite interconnect between the Cortex®-M0+ core and peripherals including SRAM, flash with read accelerator, ROM bootloader, and programmable analog/digital blocks. Its system architecture supports concurrent firmware-hardware co-design via PSoC™ Creator or ModusToolbox™, with automatic routing across GPIOs and fixed-function blocks.
Analog functionality centers on CAPSENSE™ v2 with sigma-delta modulation delivering >5:1 SNR and water tolerance, backed by hardware-accelerated SmartSense tuning. Digital resources include five 16-bit TCPWMs with center-aligned PWM, comparator-triggered kill signals, and two reconfigurable serial communication blocks (SCBs) that support runtime protocol switching between I²C, SPI, and UART modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time deterministic control with single-cycle multiply for motor timing and sensor fusion. |
| Memory | 32 KB flash + 4 KB SRAM - sufficient for CAPSENSE™ firmware, communication stacks, and application logic without external memory. |
| Capacitive Sensing | Sigma-delta CAPSENSE™ v2 with >5:1 SNR - supports robust touch buttons/sliders in wet or noisy environments. |
| Serial Interfaces | 2 × SCBs, runtime-reconfigurable as I²C/SPI/UART - allows dynamic protocol adaptation in multi-sensor hubs or gateway nodes. |
| Low-Power Modes | Deep Sleep @ 2.5 µA with analog active - enables battery-powered touch interfaces with multi-year operation on coin cells. |
| GPIO Count | 36 programmable pins - all support CAPSENSE™, analog, or digital functions with configurable drive strength and slew rate. |
| PWM Resources | 5 × 16-bit TCPWM blocks - provide flexible timing for LED dimming, motor control, and audio generation with kill-signal safety triggers. |
Pinout & Package
This device is packaged in a 40-pin QFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per the CY8C40xx family pinout specification, supporting full GPIO multiplexing across analog, digital, and CAPSENSE™ functions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and GPIO drivers simultaneously. |
| GND | Ground reference | Common return for analog/digital domains; requires dedicated low-impedance connection to thermal pad. |
| P0[0]–P0[7] | Port 0 GPIO | Support CAPSENSE™ CSD, analog input/output, or digital logic; configurable slew rate and drive strength. |
| P1[0]–P1[7] | Port 1 GPIO | Same capabilities as Port 0; includes dedicated SCB0/SCB1 signal mapping for I²C/SPI/UART. |
| SWDIO / SWCLK | Debug interface | Arm® Serial Wire Debug pins - enable in-circuit programming and full-chip debugging without JTAG header. |
| XRES | External reset | Active-low asynchronous reset input; debounced internally; overrides all power modes. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning and compensates for environmental drift. |
| Reconfigurable SCBs | Two independent serial blocks can be assigned different protocols (e.g., SCB0 = I²C master, SCB1 = UART) at runtime without reset. |
| Deep Sleep with Analog Active | 2.5 µA system current while maintaining CAPSENSE™ wake-up capability and comparator monitoring - critical for ultra-low-power HMI. |
| Programmable Routing Matrix | Hardware interconnect allows any GPIO to route to any analog or digital peripheral - removes PCB trace constraints during layout. |
| TCPWM Kill Signals | Comparator outputs directly trigger PWM shutdown within one clock cycle - meets functional safety requirements for motor drives. |
Applications
| Industrial HMI Panels | Smart Home Touch Controls |
|---|---|
Use Scenario: Touch-enabled operator interface on factory HMIs with glove operation and splash resistance. IC Role / Device Role / Timing Role: Primary MCU handling CAPSENSE™ scanning, display refresh timing, and Modbus RTU communication over SCB. Use Value: Sigma-delta CAPSENSE™ delivers >5:1 SNR and water tolerance, enabling reliable detection through glass overlays and under condensation. | Use Scenario: Battery-powered wall-mounted light/dimmer switches with multi-touch gesture support. IC Role / Device Role / Timing Role: System controller managing capacitive slider position, BLE connectivity (via external transceiver), and PWM dimming output. Use Value: 2.5 µA Deep Sleep current extends CR2032 battery life beyond 3 years while retaining instant wake-on-touch response. |
| Medical Device Keypads | Appliance Control Boards |
Use Scenario: Sterilizable touch interface on infusion pumps requiring ESD immunity and IEC 60601 compliance. IC Role / Device Role / Timing Role: Safety-critical input processor validating touch inputs before forwarding commands to main controller via SPI. Use Value: Hardware-based SmartSense ensures consistent button response across temperature/humidity shifts without firmware recalibration. | Use Scenario: Oven/microwave control panel with proximity wake, rotary slider, and status LED dimming. IC Role / Device Role / Timing Role: Dedicated CAPSENSE™ and TCPWM subsystem offloading UI tasks from main application MCU. Use Value: Five TCPWM blocks enable simultaneous LED dimming, buzzer tone generation, and fan speed control with synchronized timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable MCU with integrated capacitive sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4025AZI-S402T | Same package and core, but 64 KB flash and 8 KB SRAM - no change in CAPSENSE™ or peripheral count. | Preferred when firmware image size exceeds 32 KB or future feature expansion is anticipated. | Select if long-term code growth headroom is required without changing board layout or firmware architecture. |
| STM32G031K8T6 | No integrated CAPSENSE™; requires external RC network and software-based touch algorithm; lower SNR and no SmartSense. | Suitable only for basic touch where environmental robustness and auto-calibration are non-critical. | Choose only when cost sensitivity outweighs design time savings and performance guarantees of hardware-accelerated sensing. |
Compared with CY8C4024AZI-S403T, CY8C4025AZI-S402T offers higher memory headroom with identical peripheral and sensing capabilities, while STM32G031K8T6 lacks hardware CAPSENSE™ acceleration and requires significant firmware investment to match baseline touch reliability.
Availability
CY8C4024AZI-S403T is available at Aetrix Electronics and suitable for industrial HMI panels, smart home touch controls, medical device keypads, and appliance control boards requiring stable component supply and long lifecycle support.
Supply support for CY8C4024AZI-S403T 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 programmable embedded systems, with global manufacturing and R&D infrastructure.
The PSoC™ 4000S product line was designed specifically for cost-sensitive, high-volume human-interface applications requiring integrated, production-ready capacitive sensing and flexible digital peripherals in compact packages.
FAQ
Does CY8C4024AZI-S403T support USB connectivity?
No. This device does not include a USB PHY or USB controller. Communication is limited to the two reconfigurable SCBs supporting I²C, SPI, and UART protocols. For USB host or device functionality, an external USB-to-UART bridge or companion MCU is required.
Can CAPSENSE™ operate while the device is in Deep Sleep mode?
Yes. CAPSENSE™ v2 hardware remains active in Deep Sleep mode with only 2.5 µA total system current. The sigma-delta sensing engine and SmartSense auto-tuning continue running, allowing immediate wake-on-touch without firmware intervention or latency penalties.
What development tools are officially supported for this MCU?
Infineon officially supports both PSoC™ Creator (Windows-only IDE with schematic-driven design) and ModusToolbox™ (cross-platform, Eclipse-based, CLI-supported). Both provide full CAPSENSE™ configuration, TCPWM setup, and SCB protocol selection with validated code examples and BSPs.
Is the 40-pin QFN package RoHS and REACH compliant?
Yes. The CY8C4024AZI-S403T in 40-pin QFN packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free matte tin terminations and halogen-free molding compound, as confirmed in Infineon's official material declaration (DocID# 002-00123 Rev. *Q).
CY8C4024AZI-S403T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- 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:
- 36
- 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:
CY8C4024AZI-S403T FAQ
1.How can I place an order for CY8C4024AZI-S403T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4024AZI-S403T 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 CY8C4024AZI-S403T reliable?
The price and inventory of CY8C4024AZI-S403T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4024AZI-S403T is usually 5 days.
3.What payment methods are accepted for CY8C4024AZI-S403T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4024AZI-S403T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4024AZI-S403T?
CY8C4024AZI-S403T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4024AZI-S403T 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 CY8C4024AZI-S403T?
For technical support, including CY8C4024AZI-S403T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4024AZI-S403T requirements.
6.How does Aetrix verify that CY8C4024AZI-S403T is sourced from the original manufacturer or authorized distributors?
All CY8C4024AZI-S403T 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 CY8C4024AZI-S403T meets industry standards.
7.What is the process for return or replacement of CY8C4024AZI-S403T?
All CY8C4024AZI-S403T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4024AZI-S403T, 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 CY8C4024AZI-S403T part is unused and in its original packaging.
Return procedure for CY8C4024AZI-S403T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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