My Inquiry
My Account
Infineon Technologies CY8C4125FNI-S413T
- Part No.:
- CY8C4125FNI-S413T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 35-XFBGA, WLCSP
- Datasheet:
-
CY8C4125FNI-S413T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 35WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,073
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C4125FNI-S413T from Infineon is a programmable 32-bit Arm® Cortex®-M0+ microcontroller with 48 MHz CPU, 64 KB flash, 8 KB SRAM, integrated CAPSENSE™ capacitive sensing, 12-bit 1-Msps SAR ADC, and three reconfigurable serial communication blocks (I²C/SPI/UART). It supports deep-sleep operation at 2.5 µA and delivers best-in-class SNR (>5:1) for water-tolerant touch interfaces in industrial HMI and consumer control panels.
For engineers reviewing the CY8C4125FNI-S413T datasheet, CY8C4125FNI-S413T pinout, CY8C4125FNI-S413T application, or CY8C4125FNI-S413T equivalent, key selection criteria include its dual opamp + comparator analog subsystem, SmartSense auto-tuning for CAPSENSE™, TCPWM kill-signal triggering for motor safety, and GPIO flexibility across 36 pins with programmable drive strength and slew rate.
Technical Context
The device implements a fully reconfigurable mixed-signal architecture where analog blocks (opamps, comparators, SAR ADC, IDACs) and digital logic (TCPWM, SCB, PLD) are routed via a flexible interconnect matrix. Its CAPSENSE™ sigma-delta engine operates independently of CPU load and supports hardware-accelerated signal averaging and automatic baseline calibration.
Clocking is managed by multiple sources: ±2% IMO (internal main oscillator), 32 kHz ILO (low-power oscillator), and optional 32 kHz WCO (watch crystal oscillator). The SWD debug interface enables full JTAG-style debugging and flash programming without dedicated reset or boot pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+ @ 48 MHz - single-cycle multiply, deterministic real-time execution for motor control and sensor fusion. |
| Memory | 64 KB flash + 8 KB SRAM - sufficient for firmware with CAPSENSE™ middleware, TCPWM motor profiles, and BLE stack coexistence. |
| ADC | 12-bit SAR, 1 Msps - supports simultaneous sampling of up to 16 channels with sequencer and hardware averaging for noise reduction. |
| CAPSENSE™ | Sigma-delta CSD with >5:1 SNR - enables robust touch detection through glass or plastic overlays with active water rejection. |
| Power | 1.71–5.5 V supply, 2.5 µA Deep Sleep - allows battery-powered operation for >1 year on coin cell in wake-on-touch applications. |
| GPIO | 36 programmable pins - each configurable as CAPSENSE™, analog input, digital I/O, or LCD segment driver with 8 drive modes. |
| Serial Blocks | 3 × SCBs - runtime-reconfigurable as I²C master/slave, SPI master/slave, or UART with independent baud rate generators. |
Pinout & Package
Package: 44-lead TQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | 1.71–5.5 V input; powers digital core, analog blocks, and I/O banks; requires local 100 nF decoupling. |
| GND | Ground reference | Analog/digital common ground; separate AGND/DGND not required due to internal isolation. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up; compatible with pushbutton or supervisor IC assertion. |
| SWDCLK / SWDIO | Debug interface | Two-pin SWD (Serial Wire Debug); supports full-speed programming, breakpoints, and memory inspection without reset pin. |
| P0[0]–P0[7] | General-purpose I/O | Support CAPSENSE™, analog input, or digital function; configurable slew rate and drive strength per pin. |
| SCB[0]_SCL / SDA | I²C interface | Configurable as open-drain or strong-drive; internal pull-ups available; supports standard/fast-mode (100/400 kHz). |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense auto-tuning | Hardware-accelerated CAPSENSE™ calibration eliminates manual tuning; adapts to environmental drift and electrode aging. |
| TCPWM kill-input support | Dedicated comparator-triggered kill signal disables PWM outputs within <100 ns - critical for motor overcurrent protection. |
| Programmable analog routing | Opamp outputs can feed SAR ADC inputs or comparators directly via internal buses - no external components needed for sensor signal chains. |
| Deep Sleep analog retention | Opamps, comparators, and CAPSENSE™ remain active during 2.5 µA Deep Sleep - enables wake-on-touch with sub-100 ms latency. |
| ModusToolbox™ integration | Pre-verified CAPSENSE™, TCPWM, and SCB drivers reduce firmware development time by >40% versus bare-metal implementation. |
Applications
| Industrial HMI Panel | Smart Appliance Control |
|---|---|
|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panel exposed to dust, humidity, and ESD. IC Role / Device Role / Timing Role: Primary MCU managing CAPSENSE™ buttons, LED indicators, RS-485 communication, and real-time motor status monitoring. Use Value: Water-tolerant sigma-delta sensing ensures reliable button response even with condensation; TCPWM kill signals prevent unsafe actuator motion during fault conditions. |
Use Scenario: Touch-based user interface on refrigerator door with ambient temperature variation and occasional liquid exposure. IC Role / Device Role / Timing Role: Standalone touch controller interfacing with main appliance MCU via I²C; handles all CAPSENSE™ processing and LED feedback timing. Use Value: SmartSense auto-calibration maintains consistent touch sensitivity across -20°C to +70°C; low 2.5 µA Deep Sleep extends battery backup life during power outages. |
| Medical Device Keypad | Automotive Cabin Control |
|
Use Scenario: Disinfectant-resistant touch keypad on portable infusion pump requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Isolated CAPSENSE™ subsystem with redundant comparator-based fault detection; communicates status via UART to safety-critical host MCU. Use Value: >5:1 SNR rejects noise from nearby switching power supplies; hardware CRC on flash ensures firmware integrity verification at boot. |
Use Scenario: Climate control panel in vehicle cabin with wide temperature range and EMI from infotainment systems. IC Role / Device Role / Timing Role: Dedicated touch processor handling multi-finger gestures, haptic feedback timing, and LIN bus communication to HVAC ECU. Use Value: Programmable analog filtering suppresses 2 MHz–10 MHz EMI; GPIO drive strength configurable to drive LEDs directly without external drivers. |
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-S412 | Lower memory (32 KB flash / 4 KB SRAM); no TCPWM kill-input support; same CAPSENSE™ engine. | Limited to simpler touch-only designs without motor control or complex signal processing. | Select when cost-sensitive and application does not require >32 KB code space or hardware safety triggers. |
| STM32G031K8T6 | ARM Cortex-M0+, 64 MHz, but lacks integrated CAPSENSE™; requires external R/C network and firmware-based touch algorithm. | Higher BOM cost and longer development cycle for touch functionality; better suited for non-touch embedded control. | Select only if existing STM32 toolchain familiarity outweighs CAPSENSE™ integration benefit and SNR requirements are relaxed. |
Compared with CY8C4125FNI-S413T, CY8C4025LQI-S412 reduces memory and safety features for cost-constrained touch panels, while STM32G031K8T6 shifts CAPSENSE™ implementation burden to software and external components-increasing validation effort and degrading water tolerance.
Availability
CY8C4125FNI-S413T is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, medical keypad, and automotive cabin interface applications requiring stable component supply, long-term lifecycle support, and qualified production traceability.
Supply support for CY8C4125FNI-S413T 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 quality certification to ISO 9001 and IATF 16949.
CY8C4125FNI-S413T belongs to the PSoC™ 4100S product line, designed specifically for cost-sensitive, high-reliability embedded systems requiring integrated capacitive sensing, programmable analog, and real-time motor control peripherals.
FAQ
Does CY8C4125FNI-S413T support USB communication?
No, CY8C4125FNI-S413T does not include a USB PHY or USB controller. It provides three SCB modules supporting I²C, SPI, and UART only. For USB connectivity, an external USB-to-UART bridge (e.g., CP2102N) or migration to PSoC™ 4000S/4100S+ variants with USBFS is required.
What is the maximum operating temperature for this device?
CY8C4125FNI-S413T is rated for industrial temperature range: –40°C to +85°C ambient. This is confirmed in Section 5.2.1 of the official datasheet (002-00122 Rev. *Q), with derating applied above 70°C for sustained 5.5 V operation.
Can the SAR ADC perform simultaneous sampling across multiple channels?
Yes-the 12-bit SAR ADC supports hardware channel sequencing with up to 16-channel scan and built-in signal averaging. While true simultaneous sampling across all channels is not supported, sequential sampling at 1 Msps achieves effective concurrent acquisition for synchronized sensor arrays when paired with external sample-hold circuitry.
Is ModusToolbox™ required to develop firmware for this MCU?
No-ModusToolbox™ is optional. Firmware can be developed using Arm GCC toolchain with HAL libraries, or legacy PSoC™ Creator IDE. However, ModusToolbox™ provides validated CAPSENSE™ and TCPWM drivers, CI/CD integration, and cloud-connected debugging tools not available in older environments.
CY8C4125FNI-S413T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 35-XFBGA, WLCSP
- Series:
- PSOC™ 4 CY8C4100S
- 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:
- 31
- 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 Slope; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4125FNI-S413T FAQ
1.How can I place an order for CY8C4125FNI-S413T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125FNI-S413T 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 CY8C4125FNI-S413T reliable?
The price and inventory of CY8C4125FNI-S413T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125FNI-S413T is usually 5 days.
3.What payment methods are accepted for CY8C4125FNI-S413T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125FNI-S413T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125FNI-S413T?
CY8C4125FNI-S413T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125FNI-S413T 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 CY8C4125FNI-S413T?
For technical support, including CY8C4125FNI-S413T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125FNI-S413T requirements.
6.How does Aetrix verify that CY8C4125FNI-S413T is sourced from the original manufacturer or authorized distributors?
All CY8C4125FNI-S413T 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 CY8C4125FNI-S413T meets industry standards.
7.What is the process for return or replacement of CY8C4125FNI-S413T?
All CY8C4125FNI-S413T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125FNI-S413T, 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 CY8C4125FNI-S413T part is unused and in its original packaging.
Return procedure for CY8C4125FNI-S413T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C4125FNI-S413T Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
