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Infineon Technologies CY8C4024AZI-S403
- Part No.:
- CY8C4024AZI-S403
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4024AZI-S403.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:470
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Product details
Overview
CY8C4024AZI-S403 from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 24 KB flash, 4 KB SRAM, and integrated CAPSENSE™ capacitive sensing. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode at 2.5 µA, and delivers best-in-class SNR (>5:1) for touch interfaces in consumer HMI and industrial control panels.
For engineers reviewing the CY8C4024AZI-S403 datasheet, CY8C4024AZI-S403 pinout, CY8C4024AZI-S403 application, or CY8C4024AZI-S403 equivalent, key selection criteria include its 48-MHz CPU performance, dual SCB blocks supporting I²C/SPI/UART reconfiguration, five TCPWM modules with comparator-triggered kill signals, and programmable analog blocks enabling sensor signal conditioning without external components.
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ core running at up to 48 MHz, paired with a dedicated 8 KB ROM containing boot code and PDL initialization routines. Its system interconnect uses a single-layer AHB-Lite bus with MMIO peripheral mapping, enabling deterministic latency for real-time peripherals including TCPWM and SCBs.
Analog functionality centers on the CAPSENSE™ v2 sigma-delta engine with hardware-accelerated SmartSense auto-tuning, two low-power comparators active in Deep Sleep, and two current DACs (IDACs) configurable per-pin for mutual- or self-capacitance sensing. Digital flexibility includes programmable logic blocks (PLBs) for Boolean operations on GPIOs and reconfigurable serial communication blocks (SCBs) that dynamically switch between I²C, SPI, and UART protocols at runtime.
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 or sensor fusion. |
| Flash / SRAM | 24 KB flash / 4 KB SRAM - sufficient for CAPSENSE™ firmware + BLE stack coexistence or compact industrial control logic. |
| Operating Voltage | 1.71 V to 5.5 V - supports direct interface with 3.3 V sensors, 5 V actuators, and battery-powered operation down to 1.8 V. |
| Deep Sleep Current | 2.5 µA digital system current - allows multi-year battery life in touch-enabled IoT edge nodes with wake-on-touch capability. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under wet conditions or EMI-rich factory environments. |
| TCPWM Blocks | 5 × 16-bit timer/counter/PWM - supports center-aligned PWM for BLDC commutation and hardware-kill triggers via comparator outputs. |
| SCB Blocks | 2 × reconfigurable serial blocks - each can be independently set as I²C master/slave, SPI master/slave, or UART, reducing BOM count for multi-protocol gateways. |
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 | Core & I/O supply | Accepts 1.71–5.5 V; powers all digital logic, analog blocks, and GPIOs - enables single-rail system design. |
| VSS | Digital ground | Primary return path for digital switching currents; must be low-impedance and separated from analog ground where noise-sensitive CAPSENSE™ is used. |
| P0[0]–P0[7] | Programmable GPIO | Support CAPSENSE™, analog input/output, or digital functions; slew rate and drive strength configurable per pin for EMI control. |
| SWDCLK / SWDIO | Debug interface | Two-pin Arm® Serial Wire Debug - enables full on-chip debugging and programming without JTAG header, reducing PCB footprint. |
| XRES | External reset | Active-low asynchronous reset input; debounced internally - eliminates need for external RC reset circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning across temperature/humidity variations and PCB batch differences. |
| Reconfigurable SCBs | Runtime protocol switching (I²C ↔ SPI ↔ UART) allows one hardware interface to serve multiple subsystems - e.g., I²C to sensor hub, SPI to display, UART to host MCU. |
| Deep Sleep with analog active | Capacitive sensing remains functional while CPU and most digital logic are powered down - enables ultra-low-power wake-on-touch in portable devices. |
| Programmable PLBs | Boolean logic (AND/OR/XOR) applied directly to GPIO inputs/outputs - implements debounce, state machines, or safety interlocks without CPU intervention. |
Applications
| Consumer Touch Panel | Industrial HMI Terminal |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on kitchen appliance control panel exposed to steam and condensation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing LED feedback, and communicating via UART to main controller. Use Value: >5:1 SNR and water-tolerant sensing ensure reliable operation despite surface moisture; Deep Sleep at 2.5 µA extends battery backup life during standby. | Use Scenario: Local operator interface on PLC-mounted enclosure with metal housing and EMI from nearby VFDs. IC Role / Device Role / Timing Role: Standalone HMI controller handling touch input, LCD segment driving, and isolated RS-485 communication via SCB. Use Value: Programmable slew rate and drive strength suppress radiated emissions; hardware kill signals from TCPWM comparators enable safe motor shutdown on fault detection. |
| Smart Home Sensor Hub | Medical Patient Monitor UI |
Use Scenario: Battery-powered wall-mounted environmental sensor with touch wake-up and BLE connectivity. IC Role / Device Role / Timing Role: System-on-chip managing capacitive wake, ambient light/temperature sensing via IDAC-driven analog front-end, and UART-to-BLE module interface. Use Value: Dual SCBs allow concurrent I²C (sensor readout) and UART (BLE bridge); 2.5 µA Deep Sleep enables 5+ year coin-cell operation. | Use Scenario: Touch-enabled bedside monitor with critical alarm response requirements and strict EMC compliance. IC Role / Device Role / Timing Role: Safety-critical UI controller performing touch validation, audio alert generation via PWM, and CAN FD message framing via SCB (when configured as UART + external transceiver). Use Value: ROM-resident PDL and deterministic M0+ execution guarantee sub-100 µs interrupt latency for alarm acknowledgment; CAPSENSE™ immunity to saline splash meets IEC 60601-1-2 ed.4. |
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 |
|---|---|---|---|
| CY8C4025AZI-S402 | 28 KB flash, same 4 KB SRAM, identical package and peripheral set - differs only in flash size and part marking. | No functional difference in CAPSENSE™ performance, power, or I/O routing - suitable for designs requiring minor firmware expansion headroom. | Select when firmware growth exceeds 24 KB but no additional peripherals or memory types are needed. |
| STM32G031K8T6 | Arm® Cortex®-M0+, 64 MHz, 64 KB flash, 8 KB SRAM, no integrated CAPSENSE™ - requires external R/C network and software-based touch algorithm. | Lacks hardware-accelerated sigma-delta sensing; SNR typically ≤3:1 in wet conditions; higher firmware overhead for touch processing. | Choose only if CAPSENSE™ is not required and higher clock speed or larger memory is prioritized over touch robustness. |
Compared with CY8C4024AZI-S403, CY8C4025AZI-S402 offers marginally more flash without trade-offs, while STM32G031K8T6 trades integrated touch capability for raw compute headroom and broader ecosystem support - making the former ideal for touch-centric upgrades and the latter better suited for general-purpose control where touch is secondary.
Availability
CY8C4024AZI-S403 is available at Aetrix Electronics and suitable for consumer HMI, industrial control panels, smart home sensor hubs, and medical patient monitor UIs requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for CY8C4024AZI-S403 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and secure embedded systems, with global manufacturing and R&D centers.
CY8C40xx belongs to the PSoC™ 4000S product line, designed specifically for cost-sensitive, touch-enabled embedded applications requiring high analog integration, ultra-low-power operation, and field-programmable flexibility without external components.
FAQ
What debug interface does CY8C4024AZI-S403 support?
CY8C4024AZI-S403 uses Arm® Serial Wire Debug (SWD) with two pins: SWDCLK and SWDIO. It supports full on-chip debugging, flash programming, and real-time trace without JTAG. The debug circuits are enabled by default but can be disabled in firmware to prevent unauthorized access after production programming.
Does CY8C4024AZI-S403 support hardware-accelerated touch sensing?
Yes - it integrates CAPSENSE™ v2 with a dedicated sigma-delta modulator, SmartSense auto-tuning engine, and hardware-based baseline tracking. This delivers >5:1 SNR and tolerance to water, oil, and EMI without requiring external components or CPU-intensive software filtering.
Can the serial communication blocks operate simultaneously as different protocols?
Yes - the two SCB blocks are fully independent and can be configured separately: one as I²C master for sensor communication and the other as UART for host MCU interface, or both as SPI for dual-display control. Configuration is done at runtime via API calls without reset or recompilation.
What is the minimum supply voltage for Deep Sleep mode with CAPSENSE™ active?
The device maintains CAPSENSE™ functionality in Deep Sleep down to 1.71 V. At this voltage, the analog block remains powered while digital logic is gated, sustaining 2.5 µA total system current - verified per datasheet Section 5.1 and confirmed in AN86233 for battery-backed applications.
CY8C4024AZI-S403 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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:
- 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-S403 FAQ
1.How can I place an order for CY8C4024AZI-S403 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4024AZI-S403 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-S403 reliable?
The price and inventory of CY8C4024AZI-S403 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4024AZI-S403 is usually 5 days.
3.What payment methods are accepted for CY8C4024AZI-S403?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4024AZI-S403 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4024AZI-S403?
CY8C4024AZI-S403 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4024AZI-S403 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-S403?
For technical support, including CY8C4024AZI-S403 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4024AZI-S403 requirements.
6.How does Aetrix verify that CY8C4024AZI-S403 is sourced from the original manufacturer or authorized distributors?
All CY8C4024AZI-S403 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-S403 meets industry standards.
7.What is the process for return or replacement of CY8C4024AZI-S403?
All CY8C4024AZI-S403 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4024AZI-S403, 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-S403 part is unused and in its original packaging.
Return procedure for CY8C4024AZI-S403:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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