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Infineon Technologies CY8C4125AXI-483
- Part No.:
- CY8C4125AXI-483
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4125AXI-483.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:6,216
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Product details
Overview
CY8C4125AXI-483 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 dual SCB peripherals supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and supports –40 °C to +105 °C industrial temperature range in a 48-pin TQFP package.
For engineers reviewing the CY8C4125AXI-483 datasheet, CY8C4125AXI-483 pinout, CY8C4125AXI-483 application, or CY8C4125AXI-483 equivalent, key selection criteria include its integrated CapSense® sigma-delta engine for robust capacitive touch, Deep Sleep mode with 20-nA current draw and GPIO wakeup, and hardware-accelerated LCD segment drive capability across all pins.
Technical Context
The device implements a single-core Arm Cortex-M0 CPU running at up to 24 MHz with single-cycle multiply and NVIC supporting 32 interrupts. Its programmable analog subsystem includes two opamps configurable as buffers, comparators, or ADC input drivers, plus a dedicated 12-bit SAR ADC with differential input support and hardware channel sequencer.
Digital flexibility is delivered via two reconfigurable Serial Communication Blocks (SCBs), four 16-bit TCPWM modules supporting center-aligned PWM and comparator-triggered kill signals, and a programmable digital interconnect (DSI) enabling custom logic routing between analog and digital resources without fixed signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 24 MHz max, 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 firmware storage with zero-wait-state execution and retained RAM during Hibernate. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended modes, hardware channel sequencer - enables high-resolution sensor acquisition with automatic multi-channel scanning. |
| Analog Peripherals | 2 opamps (buffer/comparator/ADC driver), 2 low-power comparators, 2 IDACs - provides flexible signal conditioning and capacitive sensing biasing on any GPIO. |
| Power Modes | Stop (20 nA), Deep Sleep (1.3 µA), Hibernate (200 nA) - allows ultra-low-power operation with configurable wakeup sources including GPIO and comparators. |
| Operating Voltage | 1.71 V to 5.5 V - supports direct interface with 3.3 V and 5 V systems without level-shifting. |
| Temperature Range | –40 °C to +105 °C - qualified for extended industrial environments including motor control and HVAC applications. |
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 | Primary power supply | Accepts 1.71–5.5 V; powers core, analog, and I/O domains; requires local decoupling per datasheet layout guidelines. |
| VSS | Ground reference | System ground return; multiple pins provided for low-impedance analog/digital separation and EMI reduction. |
| P0[0]–P0[7] | Programmable GPIO | Port 0 pins support CapSense®, LCD segment/common, analog input/output, and digital functions with configurable drive strength/slew rate. |
| P1[0]–P1[7] | Programmable GPIO | Port 1 pins include dedicated SWD debug interface (P1[0]/P1[1]) and support same mixed-signal capabilities as Port 0. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Support optional 4–25 MHz crystal for precise clock source; internal IMO provides factory-trimmed 48 MHz clock if external crystal omitted. |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and resets peripherals; internal POR/BOD circuitry ensures reliable startup under varying supply conditions. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense® Sigma-Delta (CSD) | Hardware-accelerated capacitive sensing with >5:1 SNR and water-tolerant operation - eliminates need for external touch controller in HMI designs. |
| SmartSense™ Auto-Tuning | Runtime self-calibration of CapSense® parameters - removes manual tuning effort and maintains performance across temperature/humidity drift. |
| LCD Drive | Segment and common drive on all GPIO pins with 4-bit memory retention in Deep Sleep - enables low-power segmented display interfaces without external drivers. |
| SWD Debug Interface | 2-pin Serial Wire Debug with 4 breakpoint and 2 watchpoint comparators - enables full on-chip debugging using standard Arm tools without JTAG header overhead. |
| Flash Security | Three protection levels: Open (debug enabled), Protected (debug disabled, flash erasable), Kill (irreversible debug+erase disable) - enforces IP protection for production firmware. |
Applications
| Industrial Human-Machine Interface | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled control panel for HVAC or industrial PLC with waterproof overlay and backlight dimming. IC Role / Device Role / Timing Role: Main system controller executing CapSense® touch detection, driving 4-digit LCD display, and managing UART communication to host MCU. Use Value: Single-chip integration eliminates external touch controller and LCD driver, reducing BOM cost and PCB area while maintaining >5:1 SNR under condensation. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality with wake-on-event operation. IC Role / Device Role / Timing Role: Low-power sensor aggregator sampling analog sensors via SAR ADC, processing data in Cortex-M0, and transmitting via I²C to wireless module. Use Value: 20-nA Stop mode with GPIO wakeup extends battery life to >5 years on coin cell; hardware sequencer enables synchronized multi-channel acquisition. |
| Motor Control Interface | Programmable Power Supply Monitor |
Use Scenario: Compact BLDC motor driver board requiring overcurrent protection, PWM generation, and fault signaling. IC Role / Device Role / Timing Role: Real-time PWM generator using TCPWM blocks with comparator-triggered kill signal to shut down gate drivers during overcurrent events. Use Value: Hardware-based kill path reduces fault response time to <100 ns - critical for IGBT/MOSFET protection without software latency. | Use Scenario: Embedded power rail supervisor in telecom equipment monitoring +12 V, +3.3 V, and +1.8 V supplies with programmable thresholds. IC Role / Device Role / Timing Role: Analog monitor using opamp comparators and internal voltage references to detect undervoltage/overvoltage conditions. Use Value: Configurable LVD/BOD thresholds and interrupt generation enable adaptive power sequencing without external supervisor ICs. |
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-482 | Lower flash (16 kB) and SRAM (2 kB); no CapSense® CSD block; same 48-pin TQFP package. | Lacks hardware capacitive sensing acceleration - unsuitable for touch HMI but sufficient for basic sensor polling or motor control. | Select when CapSense® and LCD drive are unnecessary and cost sensitivity outweighs future firmware scalability. |
| STM32L432KC | Arm Cortex-M4F core, 64 kB flash, 16 kB SRAM, no integrated CapSense® or programmable analog; 32-pin QFN package. | Requires external components for touch sensing and analog signal conditioning; higher compute throughput but less analog integration. | Select when floating-point math, USB, or higher clock speed (80 MHz) is required and external analog components are acceptable. |
Compared with CY8C4025LQI-482, CY8C4125AXI-483 adds CapSense® and doubles memory, enabling richer HMI and firmware features; versus STM32L432KC, it trades raw CPU performance for on-die analog configurability and lower system-level component count in touch/display applications.
Availability
CY8C4125AXI-483 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, motor control interfaces, and programmable power supply monitors requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for CY8C4125AXI-483 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 connectivity solutions.
This device belongs to the PSoC® 4100 family - a scalable, mixed-signal programmable SoC platform designed for embedded applications requiring integrated analog front-ends, capacitive touch, and low-power operation in industrial and consumer systems.
FAQ
What debug interface does CY8C4125AXI-483 support?
CY8C4125AXI-483 uses the Arm Serial Wire Debug (SWD) interface with two dedicated pins (P1[0] and P1[1]), supporting full on-chip debugging including breakpoints, watchpoints, and memory inspection. Debug is enabled by default and can be permanently disabled via flash security settings to prevent unauthorized access.
Does CY8C4125AXI-483 support external crystal oscillators?
Yes - it includes dedicated XTAL_IN and XTAL_OUT pins supporting 4–25 MHz crystals for precise timing. The internal IMO provides a factory-trimmed 48 MHz clock as an alternative, eliminating the need for external crystals in cost-sensitive or space-constrained designs where ±2% accuracy is acceptable.
Can CY8C4125AXI-483 drive an LCD without external components?
Yes - it supports segment and common LCD drive on all GPIO pins with built-in charge pumps and 4-bit memory retention in Deep Sleep mode. This enables direct connection to static or multiplexed LCDs up to 4×32 segments without external drivers or boost converters.
How is capacitive touch implemented on CY8C4125AXI-483?
It uses dedicated hardware CapSense® Sigma-Delta (CSD) blocks with >5:1 SNR and SmartSense™ auto-tuning. CSD operates independently of the CPU, enabling simultaneous touch scanning and firmware execution, and supports water tolerance through shield electrode and frequency hopping techniques.
CY8C4125AXI-483 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™ 4 CY8C4100
- Packaging:
- Tray
- 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:
- 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 8x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4125AXI-483 FAQ
1.How can I place an order for CY8C4125AXI-483 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125AXI-483 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 CY8C4125AXI-483 reliable?
The price and inventory of CY8C4125AXI-483 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125AXI-483 is usually 5 days.
3.What payment methods are accepted for CY8C4125AXI-483?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125AXI-483 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125AXI-483?
CY8C4125AXI-483 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125AXI-483 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 CY8C4125AXI-483?
For technical support, including CY8C4125AXI-483 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125AXI-483 requirements.
6.How does Aetrix verify that CY8C4125AXI-483 is sourced from the original manufacturer or authorized distributors?
All CY8C4125AXI-483 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 CY8C4125AXI-483 meets industry standards.
7.What is the process for return or replacement of CY8C4125AXI-483?
All CY8C4125AXI-483 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125AXI-483, 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 CY8C4125AXI-483 part is unused and in its original packaging.
Return procedure for CY8C4125AXI-483:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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