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Infineon Technologies CY8C4025AZQ-S403
- Part No.:
- CY8C4025AZQ-S403
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4025AZQ-S403.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,297
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Product details
Overview
CY8C4025AZQ-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 system current, and delivers best-in-class SNR (>5:1) for water-tolerant touch interfaces in consumer HMI applications.
For engineers reviewing the CY8C4025AZQ-S403 datasheet, CY8C4025AZQ-S403 pinout, CY8C4025AZQ-S403 application, or CY8C4025AZQ-S403 equivalent, key selection criteria include its 48-MHz CPU performance, dual SCB blocks (I²C/SPI/UART), five TCPWM timers 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 analog subsystem includes two low-power comparators active in Deep Sleep and a capacitance-sensing block implementing sigma-delta ADC for CAPSENSE™.
Digital resources comprise five 16-bit TCPWM blocks supporting center-aligned PWM and hardware kill-input triggering, two reconfigurable serial communication blocks (SCBs), and programmable logic blocks for Boolean operations on GPIOs - all routed via a unified I/O subsystem supporting any-pin CAPSENSE™, analog, or digital functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 48 MHz max - enables real-time control of motor drives and touch UIs with deterministic interrupt latency. |
| Flash Memory | 24 KB - sufficient for firmware + CAPSENSE™ tuning parameters and bootloader in space-constrained embedded designs. |
| SRAM | 4 KB - supports concurrent operation of multiple peripherals including SCBs, TCPWM, and CAPSENSE™ scanning buffers. |
| Supply Voltage | 1.71 V to 5.5 V - allows direct interface with 3.3 V or 5 V logic, battery-powered sensors, and industrial I/O without level shifters. |
| Deep Sleep Current | 2.5 µA digital system current - enables multi-year operation on coin-cell batteries in IoT endpoint devices. |
| CAPSENSE™ SNR | >5:1 - ensures reliable touch detection under wet conditions and EMI noise in appliances and medical devices. |
| TCPWM Blocks | 5 × 16-bit - provides independent PWM generation for RGB LED dimming, motor phase control, and audio tone synthesis. |
Pinout & Package
Package: 40-pin QFN (6 × 6 mm, 0.5 mm pitch), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers digital core, SRAM, and most peripherals. |
| VSS | Ground reference | Common return path for analog/digital domains; requires low-impedance PCB plane connection. |
| P0[0]–P0[7] | Programmable GPIO bank | Support CAPSENSE™, analog input/output, or digital logic; configurable drive strength and slew rate. |
| SWDCLK / SWDIO | Serial Wire Debug interface | Enables full-chip programming and real-time debugging using standard Arm® SWD protocol. |
| XRES | External reset input | Active-low asynchronous reset; debounced internally to tolerate noisy board-level reset signals. |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ auto-tuning | Eliminates manual CAPSENSE™ calibration during production by dynamically adjusting sensor parameters based on environmental drift. |
| Reconfigurable SCBs | Each SCB can be independently assigned as I²C master/slave, SPI master/slave, or UART - reducing BOM count in multi-protocol systems. |
| Programmable analog blocks | Two IDACs and two low-power comparators enable analog front-end design (e.g., current-source sensor excitation, threshold detection) without external op-amps. |
| GPIO flexibility | All 36 GPIOs support CAPSENSE™, analog, or digital roles - simplifies layout and enables late-stage design changes without PCB revision. |
Applications
| Home Appliance Control Panel | Industrial HMI Touch Interface |
|---|---|
Use Scenario: Capacitive touch buttons and sliders on microwave oven or washing machine control panels exposed to steam and condensation. IC Role / Device Role / Timing Role: Primary MCU executing CAPSENSE™ scanning, LED backlight PWM, and appliance state machine logic. Use Value: >5:1 SNR and water tolerance ensure reliable operation without mechanical switches or protective overlays. | Use Scenario: Operator panel on PLC-mounted HMIs requiring ESD-hardened touch response and real-time status updates over RS-485. IC Role / Device Role / Timing Role: System controller managing CAPSENSE™ input, UART-to-RS-485 bridge via SCB, and LED indicator timing via TCPWM. Use Value: Dual SCB blocks allow simultaneous UART debug port and RS-485 communication without external transceivers. |
| Medical Device Keypad | Smart Lighting Dimmer Module |
Use Scenario: Touch-sensitive keypad on portable diagnostic equipment where sterilization and glove operation are required. IC Role / Device Role / Timing Role: Low-power MCU handling CAPSENSE™ scan during standby, waking system only on valid touch event. Use Value: 2.5 µA Deep Sleep current extends battery life beyond 3 years on CR2032 cells. | Use Scenario: DALI-2 or 0–10 V dimmer module controlling LED drivers in commercial lighting fixtures. IC Role / Device Role / Timing Role: PWM generator and analog monitor - driving dimming output while measuring driver temperature via IDAC-based current source. Use Value: Integrated IDACs eliminate external current sources needed for PT100 or NTC biasing in thermal monitoring circuits. |
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-S403 | Same core and peripherals, but in 32-pin QFN package with fewer GPIOs (28 vs. 36) and no LCD segment drive capability. | Suitable for space-constrained designs where full GPIO count and LCD support are not required. | Select when footprint reduction outweighs need for LCD drive or additional CAPSENSE™ channels. |
| CY8C4014LQI-S402 | Lower memory (16 KB flash, 2 KB SRAM), no SmartSense™ auto-tuning, and reduced TCPWM count (3 vs. 5). | Targeted at cost-sensitive, lower-complexity touch applications such as basic remote controls. | Choose only if firmware size and CAPSENSE™ calibration overhead are acceptable trade-offs for lower unit cost. |
Compared with CY8C4025LQI-S403 and CY8C4014LQI-S402, the CY8C4025AZQ-S403 offers superior peripheral density, full SmartSense™ support, and larger memory - making it optimal for next-generation touch-enabled industrial and medical edge devices requiring field-upgradable firmware and robust environmental resilience.
Availability
CY8C4025AZQ-S403 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI interfaces, medical device keypads, and smart lighting dimmer modules requiring stable component supply across multi-year production cycles.
Supply support for CY8C4025AZQ-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 ICs, and embedded controllers, with global R&D and manufacturing infrastructure.
The PSoC™ 4000S product line targets cost-optimized, high-reliability embedded systems requiring integrated analog sensing, programmable logic, and ultra-low-power operation - especially in touch HMI, industrial control, and portable medical applications.
FAQ
What development tools are supported for CY8C4025AZQ-S403?
Infineon officially supports ModusToolbox™ software and PSoC™ Creator IDE for firmware development, debugging, and hardware configuration. Both environments provide CAPSENSE™ tuning utilities, TCPWM configurators, and peripheral driver libraries. MiniProg4 is the recommended programmer/debugger, fully compatible with SWD interface and production programming workflows.
Does CY8C4025AZQ-S403 support hardware-accelerated encryption?
No. The CY8C4025AZQ-S403 does not include cryptographic accelerators or secure boot hardware. It relies on software-based AES or SHA implementations in the PDL or third-party libraries. For secure firmware updates or data confidentiality, external secure elements or higher-tier PSoC™ 6 devices with TrustZone are required.
Can all GPIO pins be used simultaneously for CAPSENSE™ and analog functions?
Yes - all 36 GPIOs are individually configurable for CAPSENSE™, analog input/output, or digital use. However, simultaneous analog measurement and CAPSENSE™ scanning on the same pin is not supported. Dedicated analog routing paths and shared SAR ADC resources require time-multiplexed usage per pin group, managed automatically by the CAPSENSE™ Component in PSoC™ Creator or ModusToolbox™.
What is the maximum operating temperature for continuous operation?
The CY8C4025AZQ-S403 is rated for continuous operation from –40 °C to +85 °C ambient temperature, per its Industrial grade qualification. Thermal derating is not required within this range, and the device maintains full specification compliance including Deep Sleep current and CAPSENSE™ SNR performance across the entire temperature span.
CY8C4025AZQ-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
- 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:
- 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 SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4025AZQ-S403 FAQ
1.How can I place an order for CY8C4025AZQ-S403 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4025AZQ-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 CY8C4025AZQ-S403 reliable?
The price and inventory of CY8C4025AZQ-S403 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4025AZQ-S403 is usually 5 days.
3.What payment methods are accepted for CY8C4025AZQ-S403?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4025AZQ-S403 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4025AZQ-S403?
CY8C4025AZQ-S403 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4025AZQ-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 CY8C4025AZQ-S403?
For technical support, including CY8C4025AZQ-S403 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4025AZQ-S403 requirements.
6.How does Aetrix verify that CY8C4025AZQ-S403 is sourced from the original manufacturer or authorized distributors?
All CY8C4025AZQ-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 CY8C4025AZQ-S403 meets industry standards.
7.What is the process for return or replacement of CY8C4025AZQ-S403?
All CY8C4025AZQ-S403 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4025AZQ-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 CY8C4025AZQ-S403 part is unused and in its original packaging.
Return procedure for CY8C4025AZQ-S403:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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