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Infineon Technologies CY8C4025LQI-S412
- Part No.:
- CY8C4025LQI-S412
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
CY8C4025LQI-S412.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,215
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Product details
Overview
CY8C4025LQI-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 system current. Used in touch-enabled industrial HMI and smart appliance control panels.
For engineers reviewing the CY8C4025LQI-S412 datasheet, CY8C4025LQI-S412 pinout, CY8C4025LQI-S412 application, or CY8C4025LQI-S412 equivalent, key selection criteria include CAPSENSE™ SNR (>5:1), programmable analog (IDACs, low-power comparators), TCPWM kill-signal triggering for motor safety, and WLCSP-25 package compatibility with space-constrained PCB layouts.
Technical Context
The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, enabling deterministic access to 32 KB flash (with read accelerator) and 4 KB SRAM. Its programmable analog subsystem includes a capacitance-sensing sigma-delta ADC, two IDACs configurable per-pin, and two deep-sleep-capable comparators.
Digital resources comprise five TCPWM blocks supporting center-aligned PWM, edge-triggered counting, and comparator-driven kill signals for motor control safety logic; two reconfigurable SCBs provide runtime-switchable I²C/SPI/UART protocols without firmware reload.
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 loops. |
| Flash / SRAM | 32 KB flash with read accelerator / 4 KB SRAM - supports bootloader + application partitioning and real-time data buffering. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio - ensures reliable touch detection under moisture or EMI in appliance front panels. |
| Low-Power Mode | Deep Sleep at 2.5 µA digital current - sustains capacitive sensing wake-up capability while minimizing battery drain. |
| TCPWM Blocks | 5 × 16-bit timer/counter/PWM - provides independent motor phase control, dead-time insertion, and hardware-triggered fault shutdown. |
| SCB Interfaces | 2 × reconfigurable serial blocks - allows dynamic protocol switching (e.g., SPI for sensor readout, UART for debug) without pin remapping. |
| GPIO Count | Up to 36 programmable pins - supports mixed-signal routing with per-pin drive strength, slew rate, and CAPSENSE™/analog/digital assignment. |
Pinout & Package
CY8C4025LQI-S412 uses a 25-ball WLCSP (Wafer-Level Chip Scale Package) with 0.4 mm pitch, optimized for ultra-compact PCB layouts in wearables and space-constrained IoT endpoints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO4 | I/O power supply rails | Independent voltage domains per port group enable mixed-voltage interfacing (e.g., 1.8 V sensors + 3.3 V displays). |
| P0[0]–P5[7] | Programmable GPIO | Each pin supports CAPSENSE™, analog input/output, digital logic, or LCD segment drive - no fixed function assignment. |
| SWDCLK / SWDIO | Serial Wire Debug interface | Two-pin debug path compatible with standard Arm® SWD tools; enables full on-chip debugging without external pods. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; accepts 1.71–5.5 V logic levels for robust system-level reset coordination. |
| VDDD / VCC | Digital core supply | 1.71–5.5 V input powering CPU, SRAM, and digital peripherals; decoupling required per Infineon layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual threshold tuning across temperature/humidity variations. |
| Programmable analog blocks | Configurable CTB (continuous-time) and SCB (switched-capacitor) blocks allow custom op-amp, filter, or PGA implementations without external components. |
| Comparator-based kill signal | Direct hardware link from comparator output to TCPWM fault input enables sub-microsecond motor shutdown on overcurrent or overtemperature events. |
| Reconfigurable SCBs | Runtime protocol switching (I²C ↔ SPI ↔ UART) on same pins reduces BOM count and simplifies firmware updates for multi-interface systems. |
| WLCSP-25 footprint | 2.15 mm × 2.15 mm package with 0.4 mm ball pitch enables high-density routing and minimal PCB area usage in portable designs. |
Applications
| Home Appliance Touch Panel | Industrial Motor Control Interface |
|---|---|
Use Scenario: Capacitive touch overlay on microwave oven or washing machine control panel exposed to steam and condensation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing display backlight PWM, and coordinating relay control via GPIO. Use Value: >5:1 SNR and water-tolerant sigma-delta sensing ensure false-touch immunity during humid operation without mechanical buttons. | Use Scenario: Compact BLDC motor driver board requiring position feedback, PWM generation, and overcurrent protection. IC Role / Device Role / Timing Role: Real-time motor controller generating three-phase center-aligned PWM and monitoring current sense amplifier outputs. Use Value: Comparator-to-TCPWM hardware kill path achieves <1 µs fault response time, meeting IEC 61800-5-2 functional safety requirements. |
| Portable Medical Sensor Hub | Smart Lighting Dimmer Module |
Use Scenario: Battery-powered wearable patch monitoring skin impedance and temperature with minimal size and power budget. IC Role / Device Role / Timing Role: System-on-chip handling analog sensor acquisition, BLE communication (via SCB), and ultra-low-power sleep/wake cycles. Use Value: 2.5 µA Deep Sleep current with active CAPSENSE™ wake-up extends coin-cell life beyond 12 months. | Use Scenario: DIN-rail mounted LED dimmer with touch slider, ambient light sensing, and DALI bus interface. IC Role / Device Role / Timing Role: Dual-role controller: CAPSENSE™ for slider input and SCB configured as DALI transceiver for lighting network command execution. Use Value: Use Value: Single-device integration of human interface and industrial bus eliminates separate DALI PHY IC and reduces bill-of-materials cost by 30%. |
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 | Same core and peripherals but in 40-pin QFN package; lacks WLCSP-25 mechanical form factor. | Suitable for prototyping or higher-pin-count layouts where board area is less constrained. | Select when requiring easier hand-soldering, thermal pad access, or legacy QFN footprint compatibility. |
| CY8C4014LQI-S412 | Lower memory (16 KB flash / 2 KB SRAM); identical WLCSP-25 package and CAPSENSE™ engine. | Targeted at cost-sensitive, functionally trimmed touch interfaces with reduced firmware complexity. | Select when application firmware fits within 16 KB and no additional TCPWM or SCB resources are needed. |
Compared with CY8C4025LQI-S412, CY8C4025AZI-S402 trades miniaturization for assembly flexibility, while CY8C4014LQI-S412 reduces memory and peripheral count to lower unit cost-both retain identical CAPSENSE™ performance and low-power behavior.
Availability
CY8C4025LQI-S412 is available at Aetrix Electronics and suitable for home appliance HMI, industrial motor interface, and portable medical sensor hub designs requiring stable component supply, long lifecycle support, and qualified WLCSP packaging.
Supply support for CY8C4025LQI-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, automotive MCUs, and secure connectivity solutions, with global manufacturing and R&D infrastructure.
CY8C40xx belongs to the PSoC™ 4000S product line, designed specifically for cost-optimized, space-constrained embedded systems requiring integrated capacitive sensing, programmable analog, and Arm®-based real-time control.
FAQ
What development environments support CY8C4025LQI-S412?
CY8C4025LQI-S412 is fully supported by both ModusToolbox™ (cross-platform, Eclipse-based) and PSoC™ Creator (Windows-only schematic-driven IDE). ModusToolbox™ provides peripheral configurators and CAPSENSE™ middleware; PSoC™ Creator offers drag-and-drop hardware design with automatic routing and pre-verified components. Both include BSPs and PDL drivers aligned to this device's silicon revision.
Does CY8C4025LQI-S412 support hardware encryption or secure boot?
CY8C4025LQI-S412 does not integrate dedicated cryptographic accelerators or secure boot ROM. It relies on software-implemented AES routines and flash protection mechanisms (e.g., write/erase lock bits, debug disable) for basic IP protection. For certified secure boot, designers must implement external secure elements or migrate to PSoC™ 6 series devices with TrustZone and hardware crypto engines.
Can all GPIO pins be used simultaneously for CAPSENSE™ and analog functions?
Yes - any of the up to 36 GPIO pins can be assigned to CAPSENSE™, analog input/output, or digital functions in the same design. However, simultaneous use of a single pin for CAPSENSE™ and high-precision analog measurement is not recommended due to shared internal routing paths and potential noise coupling. Dedicated analog pins (e.g., those routed to CTB inputs) are preferred for precision ADC or DAC operations.
What is the maximum operating temperature for CY8C4025LQI-S412 in WLCSP package?
CY8C4025LQI-S412 is rated for industrial temperature range: –40 °C to +85 °C ambient. The WLCSP-25 package has been characterized for thermal performance under continuous 48 MHz operation at 85 °C with standard PCB copper pour; derating is not required below 85 °C ambient when using recommended layout practices (e.g., thermal vias under VSS balls, minimum 1 oz copper).
CY8C4025LQI-S412 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-UFQFN Exposed Pad
- 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 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4025LQI-S412 FAQ
1.How can I place an order for CY8C4025LQI-S412 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4025LQI-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 CY8C4025LQI-S412 reliable?
The price and inventory of CY8C4025LQI-S412 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4025LQI-S412 is usually 5 days.
3.What payment methods are accepted for CY8C4025LQI-S412?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4025LQI-S412 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4025LQI-S412?
CY8C4025LQI-S412 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4025LQI-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 CY8C4025LQI-S412?
For technical support, including CY8C4025LQI-S412 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4025LQI-S412 requirements.
6.How does Aetrix verify that CY8C4025LQI-S412 is sourced from the original manufacturer or authorized distributors?
All CY8C4025LQI-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 CY8C4025LQI-S412 meets industry standards.
7.What is the process for return or replacement of CY8C4025LQI-S412?
All CY8C4025LQI-S412 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4025LQI-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 CY8C4025LQI-S412 part is unused and in its original packaging.
Return procedure for CY8C4025LQI-S412:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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