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Infineon Technologies CY8C4125AXI-483T
- Part No.:
- CY8C4125AXI-483T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4125AXI-483T.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,475
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Product details
Overview
CY8C4125AXI-483T from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit Arm® Cortex™-M0 programmable system-on-chip (PSoC® 4100 family) integrating MCU, reconfigurable analog/digital blocks, 12-bit SAR ADC, two opamps, and dual SCB peripherals. It operates from 1.71 V to 5.5 V, supports Deep Sleep mode at 20 nA, and delivers 24 MHz CPU performance with up to 32 kB flash and 4 kB SRAM. Used in capacitive touch HMI, motor control timing, and low-power industrial sensor nodes.
For engineers reviewing the CY8C4125AXI-483T datasheet, CY8C4125AXI-483T pinout, CY8C4125AXI-483T application, or CY8C4125AXI-483T equivalent, key selection criteria include its integrated CapSense Sigma-Delta (CSD) engine, programmable TCPWM kill-signal triggering for motor drives, SWD debug interface, and 48-pin TQFP package with full GPIO reconfigurability across analog/digital/CapSense/LCD functions.
Technical Context
The device implements a single-layer AHB-Lite interconnect between Cortex-M0 CPU, SRAM, flash with read accelerator, and peripheral subsystems. Its analog subsystem includes two opamps supporting comparator mode and ADC input buffering, plus a 12-bit 806 ksps SAR ADC with channel sequencer and signal averaging.
Digital flexibility is enabled by two runtime-reconfigurable serial communication blocks (SCBs) supporting I²C/SPI/UART, four 16-bit TCPWM blocks with center-aligned/edge/pseudo-random modes, and a programmable digital system interconnect (DSI) for routing signals between analog and digital resources without fixed hardware constraints.
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 Memory | 32 kB with Read Accelerator - delivers zero-wait-state execution at full speed, supports EEPROM emulation via system calls. |
| SRAM | 4 kB retained in Hibernate mode - preserves critical state during ultra-low-power wake-up events. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended, channel sequencer with signal averaging - supports high-accuracy sensor acquisition with noise reduction in firmware. |
| Opamps | 2× rail-to-rail, reconfigurable drive modes and Comparator mode - enables analog front-end design without external components for signal conditioning or threshold detection. |
| Power Modes | Stop (20 nA), Deep Sleep, Hibernate, Sleep - allows dynamic trade-off between wakeup latency and power consumption per system event profile. |
| CapSense | Cypress CapSense Sigma-Delta (CSD) with >5:1 SNR and SmartSense™ auto-tuning - delivers robust water-tolerant touch sensing on any GPIO without manual calibration. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | 1.71–5.5 V system power; powers digital logic, analog blocks, and I/O drivers. |
| VSS | Ground reference | Digital and analog common return; requires low-impedance PCB connection to minimize noise coupling. |
| P0[0]–P0[7] | Programmable GPIO port 0 | Support CapSense, analog input/output, LCD segment/common, or digital logic; configurable slew rate and drive strength. |
| P1[0]–P1[7] | Programmable GPIO port 1 | Same functionality as P0; includes dedicated SWDIO/SWCLK pins for debug interface. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external component. |
| XTAL_IN / XTAL_OUT | External crystal oscillator terminals | Supports optional 1–33 MHz crystal for precise clock source; not required due to internal IMO/ILO oscillators. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Subsystem | Two opamps with selectable drive modes and comparator output - eliminates need for external comparators or buffer amplifiers in sensor signal chains. |
| CapSense CSD Engine | Hardware-accelerated sigma-delta modulation with >5:1 SNR - enables reliable touch buttons/sliders under wet conditions without firmware compensation. |
| TCPWM Kill Signal Triggering | Comparator-based hardware assertion of PWM shutdown - provides sub-microsecond fault response for motor control safety compliance (IEC 61800-5-2). |
| SWD Debug Interface | Two-wire Serial Wire Debug with 4 breakpoint and 2 watchpoint comparators - enables full on-chip debugging in production firmware without JTAG header or emulator. |
| Flexible SCB Peripherals | Two independent serial communication blocks supporting I²C/SPI/UART at runtime - allows dynamic protocol switching without pin remapping or firmware reload. |
Applications
| Industrial HMI Panels | Smart Motor Drive Controllers |
|---|---|
Use Scenario: Touch-enabled operator interface on factory HMIs with glove/water resistance requirements. IC Role / Device Role / Timing Role: Primary controller executing CapSense firmware, managing display refresh via GPIO-driven LCD segments, and communicating status over I²C to host PLC. Use Value: Integrated CSD engine achieves >5:1 SNR and SmartSense™ auto-tuning eliminates field recalibration; 48-pin TQFP provides sufficient GPIO for multi-segment LCD + touch + comms. | Use Scenario: Compact BLDC motor controller with overcurrent protection and commutation timing. IC Role / Device Role / Timing Role: Real-time motor control unit generating six-channel PWM, sampling current sense ADC, and asserting hardware kill signal upon comparator threshold breach. Use Value: TCPWM blocks support center-aligned PWM with comparator-triggered kill in <1 µs; opamps condition shunt voltage before ADC sampling. |
| Low-Power Environmental Sensors | Programmable Power Sequencers |
Use Scenario: Battery-powered air quality node measuring CO₂, humidity, and temperature with periodic BLE wake-up. IC Role / Device Role / Timing Role: System controller acquiring analog sensor data via SAR ADC, processing in Cortex-M0, and entering 20-nA Stop mode between readings. Use Value: 20-nA Stop mode with GPIO wakeup extends 2000 mAh battery life to >10 years for 1-minute sampling intervals. | Use Scenario: FPGA or ASIC power management in telecom baseband cards requiring precise voltage ramp sequencing. IC Role / Device Role / Timing Role: Sequencing supervisor using TCPWM timers and GPIO outputs to control DC-DC enable lines with microsecond timing resolution. Use Value: Four independent 16-bit TCPWM blocks provide synchronized, jitter-free timing for multi-rail power-up/down sequences without external timing ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4025LQI-S402 | Lower flash (16 kB), no CapSense CSD engine, same 48-pin QFN package | Lacks hardware touch sensing; requires external capacitive sensing IC or software-based solution | Select when CapSense is unnecessary and cost-sensitive QFN footprint is preferred. |
| STM32F072RBT6 | ARM Cortex-M0+, 48 MHz, 128 kB flash, no programmable analog blocks, 64-pin LQFP | Requires external opamps/ADC/comparators for analog signal chain; higher pin count and BOM complexity | Select when higher CPU performance and larger memory are needed, and analog integration is handled externally. |
Compared with CY8C4125AXI-483T, CY8C4025LQI-S402 reduces cost and size but sacrifices integrated capacitive sensing and analog flexibility, while STM32F072RBT6 offers greater compute headroom and memory but increases system-level component count and layout effort for analog functions.
Availability
CY8C4125AXI-483T is available at Aetrix Electronics and suitable for industrial HMI panels, smart motor drive controllers, and low-power environmental sensors requiring stable component supply across extended temperature ranges (–40 °C to +105 °C).
Supply support for CY8C4125AXI-483T 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, industrial, and IoT solutions with strong emphasis on security and reliability.
This device belongs to the PSoC® 4100 family - a scalable mixed-signal SoC platform designed for embedded applications demanding integrated analog, programmable logic, and low-power operation in space-constrained industrial and consumer systems.
FAQ
Does CY8C4125AXI-483T support USB connectivity?
No. The device does not include a USB PHY or USB controller. Communication is limited to I²C, SPI, and UART via its two SCB peripherals. For USB host/device functionality, an external USB bridge IC (e.g., CY7C65215) must be used with GPIO or UART interface.
What debug tools are compatible with CY8C4125AXI-483T?
It supports standard Arm Serial Wire Debug (SWD) using tools including Cypress MiniProg3, KitProg (on PSoC Pioneer Kits), Segger J-Link, and ARM-compatible IDEs like PSoC Creator and Keil MDK. No JTAG adapter is required - only SWDIO and SWCLK connections are needed.
Can the internal opamps drive capacitive touch electrodes directly?
Yes. The two opamps support high-drive external mode optimized for CapSense electrode driving, and their output can be routed directly to GPIO pins configured as analog outputs. This enables active shield driving and mutual-capacitance scanning without external buffers.
Is flash protection reversible after enabling "Kill" mode?
No. Once "Kill" mode is activated, all debug interfaces and external flash erase capabilities are permanently disabled. The device cannot be reprogrammed or debugged, and flash contents are irrecoverable. This mode is irreversible and intended only for final production security-critical deployments.
CY8C4125AXI-483T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- 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:
- 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-483T FAQ
1.How can I place an order for CY8C4125AXI-483T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4125AXI-483T 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-483T reliable?
The price and inventory of CY8C4125AXI-483T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4125AXI-483T is usually 5 days.
3.What payment methods are accepted for CY8C4125AXI-483T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4125AXI-483T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4125AXI-483T?
CY8C4125AXI-483T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4125AXI-483T 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-483T?
For technical support, including CY8C4125AXI-483T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4125AXI-483T requirements.
6.How does Aetrix verify that CY8C4125AXI-483T is sourced from the original manufacturer or authorized distributors?
All CY8C4125AXI-483T 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-483T meets industry standards.
7.What is the process for return or replacement of CY8C4125AXI-483T?
All CY8C4125AXI-483T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4125AXI-483T, 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-483T part is unused and in its original packaging.
Return procedure for CY8C4125AXI-483T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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