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Infineon Technologies CY8C4025LQI-S412T
- Part No.:
- CY8C4025LQI-S412T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 32-UFQFN Exposed Pad
- Datasheet:
-
CY8C4025LQI-S412T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
CY8C4025LQI-S412T from Infineon is a 32-bit Arm® Cortex®-M0+ microcontroller with 32 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 system current, and delivers best-in-class SNR (>5:1) for water-tolerant touch interfaces in consumer HMI applications.
For engineers reviewing the CY8C4025LQI-S412T datasheet, CY8C4025LQI-S412T pinout, CY8C4025LQI-S412T application, or CY8C4025LQI-S412T 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 including two IDACs and low-power comparators.
Technical Context
The device implements a single-layer AHB-Lite interconnect between the Cortex®-M0+ core and peripherals, with dedicated MMIO routing for analog/digital subsystems. Its programmable analog includes a capacitance-sensing sigma-delta ADC and two current DACs usable on any GPIO, enabling flexible sensor interface design without external components.
Digital resources include five 16-bit TCPWM blocks supporting center-aligned PWM, edge-aligned timing, and pseudo-random modulation - all with hardware comparator-triggered kill inputs for motor control safety. Two reconfigurable serial communication blocks (SCBs) operate independently and support runtime protocol switching among I²C, SPI, and UART.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz with single-cycle multiply - enables real-time signal processing in resource-constrained embedded systems. |
| Memory | 32 KB flash with read accelerator + 4 KB SRAM - supports firmware updates and local data buffering without external memory. |
| Capacitive Sensing | CAPSENSE™ v2 with SmartSense auto-tuning and >5:1 SNR - eliminates manual calibration and ensures reliable operation under moisture or ESD stress. |
| Low-Power Modes | Deep Sleep mode draws 2.5 µA digital current while maintaining analog functionality - extends battery life in always-on touch interfaces. |
| GPIO | Up to 36 programmable pins with configurable drive strength, slew rate, and CAPSENSE™/analog/digital roles - simplifies PCB layout and reduces BOM count. |
| Timing Peripherals | Five 16-bit TCPWM blocks with comparator-based kill input - provides hardware-level fault response for motor drives and power converters. |
| Serial Interfaces | Two SCBs supporting I²C/SPI/UART concurrently - allows simultaneous host communication and sensor data aggregation. |
Pinout & Package
Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Accepts 1.71–5.5 V; powers digital logic, analog blocks, and GPIO drivers. |
| VSS | Ground reference | Common return path for analog/digital domains; requires low-impedance connection to thermal pad. |
| P0[0]–P0[7] | Programmable GPIO bank | Support CAPSENSE™, analog input/output, or digital logic; configurable pull-up/down and drive strength. |
| SWDCLK / SWDIO | Debug interface | ARM Serial Wire Debug pins for programming and real-time firmware debugging without additional hardware. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally to tolerate noisy board environments. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning and maintains accuracy across temperature/humidity drift. |
| Reconfigurable SCBs | Each SCB can be independently assigned as I²C master/slave, SPI master/slave, or UART - reduces need for multiple fixed-function peripherals. |
| Programmable analog blocks | Two IDACs and two low-power comparators usable on any GPIO - enable custom sensor front-ends without external op-amps or DACs. |
| Deep Sleep with analog retention | 2.5 µA system current while keeping comparators active and monitoring wake sources - ideal for battery-powered wake-on-touch systems. |
| Hardware kill signal | TCPWM blocks accept comparator outputs as immediate PWM disable triggers - meets functional safety requirements for motor control without software latency. |
Applications
| Home Appliance Control Panel | Industrial Human-Machine Interface |
|---|---|
Use Scenario: Touch-sensitive control panel on washing machine or oven with water splash resistance required. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ firmware, managing display via GPIO-driven LCD segments, and coordinating relay/motor control via TCPWM outputs. Use Value: Integrated CAPSENSE™ v2 achieves >5:1 SNR and automatic SmartSense tuning, eliminating external shielding and reducing mechanical design complexity. | Use Scenario: Operator terminal in factory automation with ESD-prone environment and need for fast wake-from-sleep response. IC Role / Device Role / Timing Role: Real-time controller handling button press detection, LED status feedback, and RS-485 communication via SCB configured as UART. Use Value: Deep Sleep mode at 2.5 µA enables multi-year battery operation while retaining analog wake capability on comparator inputs. |
| Medical Patient Monitor Front Panel | Smart Thermostat User Interface |
Use Scenario: Capacitive touch overlay on clinical device requiring high reliability and immunity to glove operation. IC Role / Device Role / Timing Role: Dedicated touch controller interfacing with main application processor over I²C; uses dual IDACs for differential sensing on noisy medical-grade PCBs. Use Value: Programmable analog blocks allow custom current sourcing and filtering, improving noise rejection without external components. | Use Scenario: Battery-powered HVAC thermostat with ambient light sensing and touch navigation. IC Role / Device Role / Timing Role: System-on-chip managing CAPSENSE™ buttons, ambient light ADC (via internal CTB), temperature monitoring, and Zigbee/Wi-Fi coexistence timing via TCPWM timers. Use Value: Single-chip integration of sensing, timing, and communication reduces bill-of-materials and PCB area versus discrete MCU + touch controller solutions. |
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 |
|---|---|---|---|
| CY8C4025LQI-S402 | Same die, 24-pin QFN package with fewer GPIOs (20) and no LCD segment drive capability. | Suitable for space-constrained designs where touch channel count and display integration are not required. | Select when footprint and pin count must be minimized and full 36-GPIO capability is unnecessary. |
| CY8C4025AZI-S402 | Same feature set but in 48-pin TQFP package with larger thermal mass and easier hand-soldering. | Better suited for prototyping, industrial control boards, or applications requiring higher thermal dissipation. | Choose for development platforms or production environments where reworkability and thermal margin outweigh size constraints. |
Compared with CY8C4025LQI-S412T, the S402 variants trade package form factor and I/O count for different mechanical or manufacturing priorities - the S412T's 40-pin QFN balances compactness, thermal performance, and full peripheral access for production HMI designs.
Availability
CY8C4025LQI-S412T is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMIs, medical patient monitors, and smart thermostat user interfaces requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4025LQI-S412T 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 embedded controllers, with global R&D and manufacturing infrastructure.
The PSoC™ 4000S product line targets cost-sensitive, high-integration embedded applications requiring programmable analog/digital logic, robust capacitive sensing, and ultra-low-power operation - especially in consumer and industrial HMI.
FAQ
What debug interface does CY8C4025LQI-S412T support?
CY8C4025LQI-S412T uses ARM Serial Wire Debug (SWD) with dedicated SWDCLK and SWDIO pins. It supports full on-chip debugging, flash programming, and real-time trace without external pods or emulators. The debug circuits are enabled by default but can be disabled in firmware for security-critical deployments.
Does CY8C4025LQI-S412T support LCD segment driving?
Yes, CY8C4025LQI-S412T provides LCD segment drive capability on designated GPIO pins. This function is implemented through the IOSS subsystem and supports static and multiplexed LCD configurations without external bias circuitry, reducing component count in display-integrated HMI designs.
Can the TCPWM blocks generate center-aligned PWM for motor control?
Yes, all five TCPWM blocks support center-aligned PWM mode, along with edge-aligned and pseudo-random modulation. Each block accepts comparator outputs as hardware kill signals, enabling sub-microsecond fault response - critical for brushless DC motor commutation and inverter protection.
Is CAPSENSE™ functionality available without external components?
Yes, CAPSENSE™ v2 is fully integrated with on-die sigma-delta modulators, IDACs, and SmartSense auto-tuning logic. No external resistors, capacitors, or op-amps are required for basic button/slider implementation, though optional external shield drivers may be used for advanced noise immunity.
CY8C4025LQI-S412T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-UFQFN Exposed Pad
- 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:
- 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-S412T FAQ
1.How can I place an order for CY8C4025LQI-S412T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4025LQI-S412T 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-S412T reliable?
The price and inventory of CY8C4025LQI-S412T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4025LQI-S412T is usually 5 days.
3.What payment methods are accepted for CY8C4025LQI-S412T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4025LQI-S412T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4025LQI-S412T?
CY8C4025LQI-S412T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4025LQI-S412T 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-S412T?
For technical support, including CY8C4025LQI-S412T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4025LQI-S412T requirements.
6.How does Aetrix verify that CY8C4025LQI-S412T is sourced from the original manufacturer or authorized distributors?
All CY8C4025LQI-S412T 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-S412T meets industry standards.
7.What is the process for return or replacement of CY8C4025LQI-S412T?
All CY8C4025LQI-S412T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4025LQI-S412T, 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-S412T part is unused and in its original packaging.
Return procedure for CY8C4025LQI-S412T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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