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Infineon Technologies CY8C4125PVI-482T
- Part No.:
- CY8C4125PVI-482T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C4125PVI-482T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
CY8C4125PVI-482T from Infineon Technologies (formerly Cypress) is a 32-bit Arm Cortex-M0 programmable system-on-chip (PSoC® 4100 family) integrating MCU, reconfigurable analog/digital blocks, 12-bit 806 ksps SAR ADC, two opamps with comparator mode, and two SCBs supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and supports Deep Sleep mode with 20-nA current draw. Used in capacitive touch HMI, sensor interface, and low-power industrial control.
For engineers reviewing the CY8C4125PVI-482T datasheet, CY8C4125PVI-482T pinout, CY8C4125PVI-482T application, or CY8C4125PVI-482T equivalent, key selection criteria include its 32 kB flash / 4 kB SRAM memory map, CapSense Sigma-Delta (CSD) support with >5:1 SNR, 48-pin TQFP package with 36 GPIOs, and SWD debug interface compatibility with industry-standard Arm tools.
Technical Context
The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, enabling deterministic latency for real-time firmware execution. Its analog subsystem includes a CTBm block hosting two opamps configurable as buffers, comparators, or ADC input drivers, plus a dedicated SAR ADC with channel sequencer and signal averaging.
Digital flexibility stems from four TCPWM blocks supporting center-aligned PWM, pseudo-random modulation, and comparator-triggered kill signals for motor control safety. Two SCBs provide runtime-reconfigurable serial interfaces-each independently assignable to I²C, SPI, or UART-with hardware FIFOs and DMA support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0 @ 24 MHz with single-cycle 32-bit multiply - enables deterministic real-time control and binary upward compatibility with Cortex-M3/M4. |
| Flash / SRAM | 32 kB flash with Read Accelerator + 4 kB SRAM - supports medium-complexity firmware with zero-wait-state execution at max clock. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution sensor data acquisition with noise suppression. |
| Analog Blocks | 2 opamps (reconfigurable buffer/comparator/ADC driver) + 2 low-power comparators active in Deep Sleep - enables always-on analog monitoring without waking CPU. |
| GPIO | 36 programmable pins with configurable drive strength, slew rate, and CapSense/LCD/analog/digital modes - allows mixed-signal routing flexibility on single-chip HMI or sensor node designs. |
| Power Modes | Stop (20 nA), Hibernate, Deep Sleep, Sleep, Active - supports battery-powered applications requiring multi-year operation on coin cell. |
| Debug Interface | Serial Wire Debug (SWD) with 4 breakpoint + 2 watchpoint comparators - enables full on-chip debugging using standard Arm toolchains without external pods. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/O; requires local 100 nF decoupling. |
| VSS | Ground reference | Digital and analog ground common point; must be low-impedance connection to PCB plane. |
| P0[0]–P0[7] | Port 0 GPIO | 8-bit port with CapSense, LCD segment/common, analog input, or digital I/O capability; individually configurable. |
| P1[0]–P1[7] | Port 1 GPIO | 8-bit port supporting high-drive output, slew-rate control, and deep-sleep wakeup capability. |
| SWDCLK / SWDIO | Debug interface signals | Two-pin SWD interface for programming and real-time debugging; no external pull-ups required. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up enabled; compatible with open-drain or push-pull reset sources. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports 1–33 MHz crystals for precise timing; optional when using internal IMO/ILO oscillators. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense CSD | Hardware-accelerated capacitive sensing with >5:1 SNR and water-tolerant operation - eliminates need for external touch controller in consumer HMI. |
| SmartSense™ | Automatic hardware tuning of CapSense parameters - reduces firmware development time and field calibration effort. |
| LCD Drive | Segment/common drive on all GPIO pins with 4-bit per-pin memory in Deep Sleep - enables ultra-low-power segmented display without external driver IC. |
| SCB Flexibility | Two independent serial communication blocks each reconfigurable at runtime as I²C, SPI, or UART - simplifies BOM by eliminating fixed-function peripheral dependencies. |
| TCPWM Kill Signal | Comparator-triggered hardware kill input to TCPWM blocks - provides sub-microsecond fault response for motor gate drivers and safety-critical PWM systems. |
Applications
| Industrial Sensor Node | Capacitive Touch Remote Control |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local status LED. IC Role / Device Role / Timing Role: Main system controller handling ADC sampling, CapSense button detection, SPI communication to RF module, and low-power state management. Use Value: Deep Sleep current of 20 nA extends 2-AA battery life beyond 5 years; integrated opamp buffers enable direct thermistor/RTD interfacing without external signal conditioning. | Use Scenario: Consumer IR remote with touch slider and backlight control. IC Role / Device Role / Timing Role: Single-chip HMI controller managing CapSense slider, LED dimming via PWM, IR encoding, and low-voltage brown-out protection. Use Value: SmartSense™ auto-tunes slider sensitivity across temperature and humidity; integrated 12-bit ADC measures battery voltage for accurate low-battery warning. |
| Programmable Power Supply Monitor | Embedded Motor Starter Panel |
Use Scenario: DIN-rail mounted AC/DC converter with overvoltage, undervoltage, and thermal shutdown monitoring. IC Role / Device Role / Timing Role: Safety monitor executing real-time analog comparisons, latching fault states, and driving relay control outputs via GPIO. Use Value: Dual low-power comparators remain active in Deep Sleep to detect faults while drawing <1 µA; hardware kill signal disables PWM outputs within 100 ns of overcurrent event. | Use Scenario: Small industrial motor starter with start/stop buttons, direction toggle, and thermal feedback. IC Role / Device Role / Timing Role: System-on-chip controller implementing pushbutton debouncing, direction logic, PWM speed control, and thermal shutdown via analog input. Use Value: Four TCPWM blocks generate synchronized center-aligned PWM for three-phase inverter control; programmable analog blocks condition thermistor signal without external opamp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4025LQI-482T | Same PSoC 4100 architecture but with 16 kB flash / 2 kB SRAM and no CapSense CSD block. | Suitable for cost-sensitive non-touch applications requiring basic analog/digital I/O and lower memory footprint. | Select when CapSense and >2 kB SRAM are unnecessary; retains identical pinout and peripheral set except CSD. |
| STM32G071CBT6 | Arm Cortex-M0+ core @ 64 MHz, 128 kB flash / 36 kB SRAM, no reconfigurable analog blocks, fixed-function peripherals only. | Better suited for high-throughput data logging or USB-C PD control where analog flexibility is secondary to memory and clock speed. | Choose when higher clock speed and larger memory are critical, and when design can accommodate fixed analog front-end components. |
Compared with CY8C4025LQI-482T, this part adds CapSense CSD and doubles memory resources for richer HMI or sensor fusion; versus STM32G071CBT6, it trades raw performance for on-die analog configurability and ultra-low-power wake-from-sleep latency.
Availability
CY8C4125PVI-482T is available at Aetrix Electronics and suitable for industrial sensor nodes, capacitive touch HMI interfaces, programmable power monitors, and embedded motor starter panels requiring stable component supply and long-term lifecycle support.
Supply support for CY8C4125PVI-482T 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and secure embedded solutions.
This device belongs to the PSoC® 4100 family - a scalable mixed-signal SoC platform designed for cost-sensitive, low-power embedded applications requiring analog/digital integration and field-programmable flexibility without external components.
FAQ
Does CY8C4125PVI-482T support USB connectivity?
No. This device lacks a USB PHY or dedicated USB controller. Communication is limited to I²C, SPI, and UART via its two SCB modules. For USB-enabled designs, consider the PSoC 4200 series or external USB-to-UART bridge ICs such as CP2102N.
Can the internal opamps drive external loads directly?
Yes - one opamp supports high-drive external mode (up to 25 mA sink/source) suitable for driving LEDs or small transducers; the other is optimized for internal buffering and comparator operation. Output swing is rail-to-rail under specified load conditions per the Electrical Specifications table in Rev. *K datasheet.
Is the 48-pin TQFP package RoHS-compliant and halogen-free?
Yes. The CY8C4125PVI-482T uses a lead-free, RoHS-compliant 48-pin TQFP package meeting JEDEC J-STD-020 moisture sensitivity level 3 requirements and certified halogen-free per IEC 61249-2-21.
What debug tools are officially supported?
Infineon officially supports the KitProg2 and KitProg3 programmers/debuggers, both compatible with PSoC Creator and ModusToolbox IDE. Third-party Arm SWD tools including Segger J-Link and ST-Link/V2 are also verified for flash programming and real-time debugging via the standard two-pin SWD interface.
CY8C4125PVI-482T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™ 4 CY8C4100
- 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:
- 22
- 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 8x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4125PVI-482T FAQ
1.How can I place an order for CY8C4125PVI-482T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125PVI-482T 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 CY8C4125PVI-482T reliable?
The price and inventory of CY8C4125PVI-482T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125PVI-482T is usually 5 days.
3.What payment methods are accepted for CY8C4125PVI-482T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125PVI-482T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125PVI-482T?
CY8C4125PVI-482T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125PVI-482T 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 CY8C4125PVI-482T?
For technical support, including CY8C4125PVI-482T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125PVI-482T requirements.
6.How does Aetrix verify that CY8C4125PVI-482T is sourced from the original manufacturer or authorized distributors?
All CY8C4125PVI-482T 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 CY8C4125PVI-482T meets industry standards.
7.What is the process for return or replacement of CY8C4125PVI-482T?
All CY8C4125PVI-482T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125PVI-482T, 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 CY8C4125PVI-482T part is unused and in its original packaging.
Return procedure for CY8C4125PVI-482T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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