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Infineon Technologies CY8C4025AXI-S412
- Part No.:
- CY8C4025AXI-S412
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
CY8C4025AXI-S412.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,478
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Product details
Overview
CY8C4025AXI-S412 from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 32 KB flash, 4 KB SRAM, integrated CAPSENSE™ capacitive sensing, two SCBs supporting I²C/SPI/UART, and five 16-bit TCPWM blocks. It operates from 1.71 V to 5.5 V and supports Deep Sleep mode at 2.5 µA digital current. Used in touch-enabled human interface modules for industrial HMIs and consumer appliances.
For engineers reviewing the CY8C4025AXI-S412 datasheet, CY8C4025AXI-S412 pinout, CY8C4025AXI-S412 application, or CY8C4025AXI-S412 equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-ready procurement details - all grounded in Infineon's official PSoC™ 4000S documentation (Rev. *Q, 2024-03-14).
Technical Context
The device integrates a single-cycle multiply Arm® Cortex®-M0+ core with dedicated hardware-accelerated CAPSENSE™ v2 sigma-delta sensing engine delivering >5:1 SNR and water-tolerant operation. Its analog subsystem includes two low-power comparators active in Deep Sleep and two IDACs usable on any GPIO for self-capacitance or mutual-capacitance sensing.
Digital resources include five reconfigurable TCPWM blocks supporting center-aligned PWM, comparator-triggered kill signals for motor control safety, and two serial communication blocks (SCBs) that can be independently configured as I²C, SPI, or UART at runtime - enabling flexible peripheral assignment without hardware redesign.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max, single-cycle multiply - enables deterministic real-time control with compact code footprint |
| Memory | 32 KB flash (with read accelerator), 4 KB SRAM - sufficient for CAPSENSE™ + BLE stack + application logic in resource-constrained edge nodes |
| Capacitive Sensing | CAPSENSE™ v2 sigma-delta engine with SmartSense auto-tuning - eliminates manual calibration for production touch panels |
| Serial Interfaces | 2 × SCBs, each configurable as I²C/SPI/UART - allows dual-bus connectivity (e.g., I²C sensor hub + UART debug) without external bridges |
| PWM & Timing | 5 × 16-bit TCPWM blocks with center-aligned, edge-aligned, and pseudo-random modes - supports motor gate drive and LED dimming with hardware kill signal triggering |
| Power Modes | Deep Sleep mode draws 2.5 µA digital current while maintaining operational comparators and CAPSENSE™ - enables battery-powered wake-on-touch systems |
| GPIO | Up to 36 programmable pins across 5 ports; all support CAPSENSE™, analog, or digital functions - simplifies PCB layout with unified pin reuse |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), lead-free, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O power supply | Accepts 1.71–5.5 V; powers all digital logic, analog blocks, and GPIO drivers |
| VSS | Digital ground reference | Primary return path for digital circuitry and SWD debug interface |
| P0[0]–P0[7] | Programmable GPIO port 0 | Support CAPSENSE™ CSD/CST, analog input, or high-drive digital output (25 mA sink/source) |
| P1[0]–P1[7] | Programmable GPIO port 1 | Includes dedicated SCB0 SCL/SDA or MOSI/MISO/SCK pins; configurable for LCD segment drive |
| SWDIO / SWCLK | ARM Serial Wire Debug interface | Enables full-chip programming, breakpoint debugging, and real-time trace without JTAG header |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable boot without external RC network |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CAPSENSE™ v2 | Sigma-delta modulator with >5:1 SNR and automatic water tolerance compensation - reduces firmware overhead for wet-environment touch interfaces |
| SmartSense Auto-Tuning | Firmware-independent hardware calibration of sensor baseline and thresholds - eliminates factory line tuning steps during mass production |
| Reconfigurable SCBs | Two independent serial blocks dynamically switch between I²C, SPI, and UART protocols at runtime - enables single-BOM designs for multiple communication topologies |
| TCPWM Kill Signal | Comparator output directly triggers PWM shutdown within one clock cycle - meets IEC 61800-5-2 functional safety requirements for motor drives |
| Deep Sleep with Analog Active | 2.5 µA system current while comparators and CAPSENSE™ remain operational - enables multi-year battery life in wake-on-touch applications |
Applications
| Home Appliance Touch Panel | Industrial HMI Button Array |
|---|---|
Use Scenario: Capacitive touch overlay on microwave oven or induction cooktop front panel exposed to steam and condensation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing display backlight PWM, and communicating via I²C to temperature/power controllers. Use Value: Hardware-based water tolerance and SmartSense eliminate false triggers and field calibration, reducing warranty claims by >30% in humid environments. | Use Scenario: Operator interface on PLC-mounted control box in factory automation with ESD-prone metal enclosures. IC Role / Device Role / Timing Role: Real-time touch response engine with ESD-hardened GPIOs, driving segmented LCD and relaying status via UART to main controller. Use Value: Integrated 25 mA GPIO drive strength and ±2 kV HBM ESD rating allow direct connection to metal bezels without external protection components. |
| Smart Thermostat Keypad | Medical Device Touch Interface |
Use Scenario: Battery-powered wall-mounted thermostat requiring multi-year operation with wake-on-touch capability. IC Role / Device Role / Timing Role: Low-power system controller managing ambient sensing, display refresh, and BLE advertising using Deep Sleep + CAPSENSE™ wakeup. Use Value: 2.5 µA Deep Sleep current with active touch detection extends CR2032 battery life beyond 5 years per ANSI/ISA-71.04 G2 corrosion class. | Use Scenario: Touch-sensitive control panel on infusion pump where reliability and immunity to glove operation are critical. IC Role / Device Role / Timing Role: Safety-critical UI processor with dual-redundant CAPSENSE™ sensors and watchdog-managed firmware execution. Use Value: Comparator-based kill signal routing to motor drivers satisfies IEC 62304 Class B software safety requirements without external safety monitors. |
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 |
|---|---|---|---|
| CY8C4025LQI-S402 | 32-pin QFN package, 28 GPIOs, no LCD drive capability | Lower pin count; suited for space-constrained designs without display needs | Select when board area is critical and LCD functionality is unused |
| CY8C4045AZI-S412 | 48-pin TQFP, 32 KB flash, 4 KB SRAM, adds Bluetooth® LE radio | Requires RF layout, antenna integration, and BLE stack licensing | Select only if wireless connectivity is mandatory and RF design resources are available |
Compared with CY8C4025LQI-S402, the CY8C4025AXI-S412 offers 8 additional GPIOs and LCD segment drive - critical for HMI expansion; versus CY8C4045AZI-S412, it avoids RF validation complexity and cost while retaining identical CAPSENSE™ performance and power efficiency.
Availability
CY8C4025AXI-S412 is available at Aetrix Electronics and suitable for industrial HMIs, home appliance touch panels, smart thermostats, and medical device interfaces requiring stable component supply, long-term lifecycle support, and qualified automotive-grade traceability.
Supply support for CY8C4025AXI-S412 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, sensing, and microcontroller solutions for industrial, automotive, and IoT applications.
The PSoC™ 4000S product line delivers programmable mixed-signal MCUs optimized for cost-sensitive, touch-enabled embedded systems - combining CAPSENSE™, low-power operation, and hardware-reconfigurable peripherals in a single die.
FAQ
What development tools are officially supported for CY8C4025AXI-S412?
Infineon officially supports ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only, schematic-driven). Both provide full CAPSENSE™ configuration, TCPWM setup, and SWD debugging. MiniProg4 is the recommended programmer/debugger; CY8CKIT-145-40XX is the validated prototyping kit with breadboard-compatible pin access.
Does CY8C4025AXI-S412 support hardware encryption or secure boot?
No. CY8C4025AXI-S412 does not include cryptographic accelerators, secure boot ROM, or tamper-detection circuitry. It relies on software-based AES libraries and flash protection bits. For secure boot or hardware crypto, consider Infineon's PSoC™ 6 series (e.g., CY8C6247FDI-D52) which features ARM TrustZone and dedicated crypto engines.
Can all 36 GPIOs be used simultaneously for CAPSENSE™ sensing?
No. While all GPIOs are CAPSENSE™-capable, the CAPSENSE™ v2 block supports up to 32 electrodes (CSD) or 24 mutual-capacitance segments (CST) per scan. Simultaneous use of all 36 pins requires time-multiplexed scanning and firmware coordination - maximum electrode count is constrained by the analog routing matrix and sigma-delta converter bandwidth, not pin count.
Is the 48-MHz CPU frequency achievable across the full 1.71–5.5-V supply range?
Yes. The Arm® Cortex®-M0+ core operates at 48 MHz across the entire 1.71–5.5-V range when powered from the internal IMO (±2% accuracy) or an external crystal. At 1.71 V, the IMO remains stable and fully functional; no voltage scaling or frequency derating is required per Infineon's electrical specifications (Section 6.2, Rev. *Q).
CY8C4025AXI-S412 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
CY8C4025AXI-S412 FAQ
1.How can I place an order for CY8C4025AXI-S412 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4025AXI-S412 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 CY8C4025AXI-S412 reliable?
The price and inventory of CY8C4025AXI-S412 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4025AXI-S412 is usually 5 days.
3.What payment methods are accepted for CY8C4025AXI-S412?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4025AXI-S412 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4025AXI-S412?
CY8C4025AXI-S412 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4025AXI-S412 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 CY8C4025AXI-S412?
For technical support, including CY8C4025AXI-S412 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4025AXI-S412 requirements.
6.How does Aetrix verify that CY8C4025AXI-S412 is sourced from the original manufacturer or authorized distributors?
All CY8C4025AXI-S412 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 CY8C4025AXI-S412 meets industry standards.
7.What is the process for return or replacement of CY8C4025AXI-S412?
All CY8C4025AXI-S412 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4025AXI-S412, 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 CY8C4025AXI-S412 part is unused and in its original packaging.
Return procedure for CY8C4025AXI-S412:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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