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Infineon Technologies CY8C4125PVE-S422T
- Part No.:
- CY8C4125PVE-S422T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4125PVE-S422T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
CY8C4125PVE-S422T from Infineon is an AEC-Q100 Grade 2 automotive-qualified 32-bit PSoC™ Automotive 4100S microcontroller featuring an Arm® Cortex®-M0+ CPU running at 48 MHz, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing with >5:1 SNR, and three reconfigurable serial communication blocks (I²C/SPI/UART/LIN). It targets body control modules and touch-enabled automotive interior systems.
For engineers reviewing the CY8C4125PVE-S422T datasheet, CY8C4125PVE-S422T pinout, CY8C4125PVE-S422T application, or CY8C4125PVE-S422T equivalent, key selection criteria include AEC-Q100 S-grade (–40°C to +105°C) operation, Deep Sleep current of 2.5 µA with active analog, programmable CTB opamps with ADC input buffering, and TCPWM kill-signal triggering for motor safety logic.
Technical Context
The device implements a tightly coupled mixed-signal architecture where the Arm® Cortex®-M0+ core interfaces directly with configurable analog (CTB, SAR ADC, CSD, IDAC) and digital (TCPWM, SCB, PLD) peripherals via a programmable interconnect matrix. All analog blocks retain functionality in Deep Sleep mode, enabling always-on capacitive touch detection with <2.5 µA system current.
Its three Serial Communication Blocks (SCBs) support runtime reconfiguration between I²C master/slave, SPI master/slave, UART, and LIN slave modes - each with independent clocking and DMA support. The five TCPWM blocks provide center-aligned PWM, pseudo-random dithering, and comparator-triggered hardware kill signals for functional safety-critical timing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - deterministic real-time execution with Thumb-2 instruction set and NVIC interrupt controller. |
| Flash / SRAM | 64 KB flash with read accelerator; 8 KB SRAM - supports firmware updates and real-time data logging without external memory. |
| Operating Temp | –40°C to +105°C (AEC-Q100 Grade 2 S-grade) - qualified for under-hood and cabin-mounted automotive ECUs. |
| Deep Sleep Current | 2.5 µA with active analog - enables always-on capacitive touch wake-up while preserving battery life in parked vehicle states. |
| SAR ADC | 12-bit, 1 Msps, differential/single-ended, sequencer with signal averaging - supports high-accuracy sensor monitoring (e.g., temperature, pressure) with noise rejection. |
| CAPSENSE™ SNR | >5:1 signal-to-noise ratio with water tolerance - delivers reliable touch detection on wet or contaminated surfaces in automotive interiors. |
| TCPWM Blocks | Five 16-bit timer/counter/PWM units with comparator-triggered kill signals - enables safe motor control with hardware-enforced fault response <1 µs latency. |
Pinout & Package
Package: 40-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for automotive thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power domains | Four independent 1.71–5.5 V I/O banks enable mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V analog sensors). |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | All 40 pins support CAPSENSE™, analog input/output, or digital logic - no fixed-function pin constraints. |
| SWDCLK / SWDIO | Debug interface | Two-pin ARM Serial Wire Debug interface - enables in-circuit programming and real-time trace without dedicated JTAG pins. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up - supports fail-safe system recovery triggered by external watchdog or power supervisor. |
| VREFB | Analog reference buffer | Internal buffered reference for SAR ADC and comparators - eliminates need for external precision voltage reference. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable CTB opamps | Two continuous-time blocks supporting opamp, comparator, and ADC input buffer modes - reduces BOM count by eliminating discrete signal-conditioning ICs. |
| CSD-based CAPSENSE™ | Capacitive sigma-delta sensing with automatic hardware tuning - achieves production-ready touch performance without manual calibration or firmware tuning. |
| Runtime-reconfigurable SCBs | Three serial blocks dynamically switch between I²C/SPI/UART/LIN protocols - simplifies multi-interface ECU designs and enables field-upgradable communication topologies. |
| Deep Sleep analog retention | Opamps, comparators, and CSD remain active at 2.5 µA system current - enables low-power occupancy detection and proximity wake-up in battery-sensitive applications. |
| TCPWM kill-signal trigger | Hardware comparator output directly disables PWM outputs within one clock cycle - meets ASIL-B timing requirements for motor drive fault containment. |
Applications
| Door Control Module | Climate Control Panel |
|---|---|
Use Scenario: Detecting window lift obstruction, monitoring door lock actuator current, and managing anti-pinch logic in real time. IC Role / Device Role / Timing Role: Main MCU executing safety-critical motor control loops, sampling analog current sense signals via SAR ADC, and generating PWM with hardware kill signals. Use Value: Integrated TCPWM kill logic ensures <1 µs fault response, meeting ISO 26262 ASIL-B requirements without external safety monitors. | Use Scenario: Supporting multi-zone capacitive touch buttons and sliders on HVAC control surfaces exposed to condensation and glove contact. IC Role / Device Role / Timing Role: CAPSENSE™ controller with CSD engine and automatic water-tolerance tuning, backed by 48 MHz CPU for real-time UI rendering. Use Value: >5:1 SNR and hardware auto-tuning eliminate false triggers during moisture exposure, reducing warranty claims for touch failure. |
| Seat Position Memory | Steering Wheel Controls |
Use Scenario: Storing and recalling driver seat position profiles using nonvolatile flash, with analog potentiometer feedback and motor drive control. IC Role / Device Role / Timing Role: Mixed-signal MCU handling analog position sensing (SAR ADC), EEPROM emulation (flash wear leveling), and bidirectional motor control (TCPWM + H-bridge drivers). Use Value: On-chip 64 KB flash with read accelerator enables fast profile load times (<50 ms), improving user experience over external EEPROM solutions. | Use Scenario: Interfacing rotary encoders, tactile switches, and haptic feedback drivers on steering wheel assemblies with strict EMC and space constraints. IC Role / Device Role / Timing Role: Low-emission GPIO with programmable slew rate and drive strength, communicating via LIN slave protocol to body domain controller. Use Value: Integrated LIN slave mode in SCB eliminates external transceiver, reducing PCB area and EMI sources in safety-critical zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon CY8C4126PVI-S433 | Same PSoC™ 4100S family, 64 KB flash, but 48-pin TQFP package and higher 128 KB flash option available; identical IP blocks and AEC-Q100 S-grade rating. | Supports larger BOMs requiring more GPIOs or external crystal routing flexibility; less suitable for space-constrained QFN-only layouts. | Select when board layout requires TQFP mechanical compatibility or future scalability to 128 KB flash variants. |
| NXP S32K142WHT0MLHT | ARM Cortex-M4F core, 112 MHz, CAN FD, Ethernet AVB, but no integrated CAPSENSE™ or programmable analog; requires external touch controller. | Targeted at gateway and powertrain applications needing CAN FD and higher compute; lacks native capacitive sensing capability. | Select only if CAN FD connectivity or floating-point math acceleration is mandatory and touch sensing is handled externally. |
Compared with CY8C4125PVE-S422T, CY8C4126PVI-S433 offers identical mixed-signal features in a different package, while S32K142WHT0MLHT trades programmable analog and CAPSENSE™ for CAN FD and higher CPU performance - making it unsuitable for touch-centric body electronics without added components.
Availability
CY8C4125PVE-S422T is available at Aetrix Electronics and suitable for automotive body control modules, touch-enabled climate panels, seat position memory systems, and steering wheel interface designs requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4125PVE-S422T 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 security solutions, with global R&D and manufacturing infrastructure supporting automotive qualification standards.
CY8C4125PVE-S422T belongs to the PSoC™ Automotive 4100S product line, designed specifically for cost-optimized, safety-aware body electronics requiring integrated capacitive sensing, mixed-signal processing, and AEC-Q100 compliance without external analog components.
FAQ
Is CY8C4125PVE-S422T qualified for automotive use?
Yes. It is AEC-Q100 qualified to Grade 2 (–40°C to +105°C), with full documentation including stress test reports, failure-in-time (FIT) data, and PPAP support packages available from Infineon. The device undergoes accelerated lifetime testing per AEC-Q100 Rev G specifications, including HTOL, TC, and UHAST.
Does it support CAN bus communication?
No. CY8C4125PVE-S422T does not include a CAN controller or physical layer. It supports I²C, SPI, UART, and LIN slave communication via its three reconfigurable Serial Communication Blocks (SCBs). For CAN-based systems, external transceivers or companion MCUs are required.
What development tools are supported?
ModusToolbox™ 3.x is the official IDE, providing PDL-based peripheral drivers, CAPSENSE™ Tuner GUI, and pre-certified safety libraries for ASIL-B functions. Hardware debugging uses KitProg3 on CY8CKIT-042-BLE or CY8CKIT-044 PSoC™ 4100S Automotive kits - both support SWD and power measurement.
Can it operate in Deep Sleep while detecting touch?
Yes. The CSD block, CTB opamps, and low-power comparators remain fully functional in Deep Sleep mode with total system current of 2.5 µA. Touch events generate interrupts that wake the Cortex-M0+ core, enabling ultra-low-power occupancy detection in parked vehicle scenarios.
CY8C4125PVE-S422T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- 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:
- 24
- 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, 12x12b SAR; D/A 2x7b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4125PVE-S422T FAQ
1.How can I place an order for CY8C4125PVE-S422T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125PVE-S422T 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 CY8C4125PVE-S422T reliable?
The price and inventory of CY8C4125PVE-S422T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125PVE-S422T is usually 5 days.
3.What payment methods are accepted for CY8C4125PVE-S422T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125PVE-S422T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125PVE-S422T?
CY8C4125PVE-S422T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125PVE-S422T 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 CY8C4125PVE-S422T?
For technical support, including CY8C4125PVE-S422T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125PVE-S422T requirements.
6.How does Aetrix verify that CY8C4125PVE-S422T is sourced from the original manufacturer or authorized distributors?
All CY8C4125PVE-S422T 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 CY8C4125PVE-S422T meets industry standards.
7.What is the process for return or replacement of CY8C4125PVE-S422T?
All CY8C4125PVE-S422T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125PVE-S422T, 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 CY8C4125PVE-S422T part is unused and in its original packaging.
Return procedure for CY8C4125PVE-S422T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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