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Infineon Technologies CY8C4124AXI-443T
- Part No.:
- CY8C4124AXI-443T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4124AXI-443T.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,485
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Product details
Overview
CY8C4124AXI-443T 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 SAR ADC (806 ksps), two opamps with comparator mode, and two SCBs supporting I²C/SPI/UART. It operates from 1.71 V to 5.5 V and supports –40 °C to +105 °C industrial temperature range, deployed in capacitive touch HMI and sensor-conditioning edge nodes.
For engineers reviewing the CY8C4124AXI-443T datasheet, CY8C4124AXI-443T pinout, CY8C4124AXI-443T application, or CY8C4124AXI-443T equivalent, key selection criteria include flash size (32 kB), SRAM (4 kB), CapSense Sigma-Delta (CSD) SNR >5:1, Deep Sleep current (20 nA), and 44-pin TQFP package compatibility with PSoC Creator IDE-based hardware/firmware co-design.
Technical Context
The device implements a single-layer AHB-Lite interconnect between Cortex-M0 CPU, SRAM, flash with read accelerator, and programmable analog/digital peripherals. Its analog subsystem includes two opamps configurable as buffers, comparators, or ADC input drivers, plus a dedicated 12-bit SAR ADC with channel sequencer and signal averaging.
Digital flexibility stems from four TCPWM blocks (center-aligned/edge/pseudo-random PWM), two reconfigurable serial communication blocks (SCBs), and a programmable digital system interconnect (DSI) enabling routing of signals between analog, digital, and GPIO resources without fixed hardwiring.
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 Memory | 32 kB with Read Accelerator - delivers zero-wait-state execution at max clock, supports firmware updates and EEPROM emulation. |
| SRAM | 4 kB retained in Hibernate mode - preserves critical state during ultra-low-power wake-up scenarios. |
| ADC | 12-bit SAR, 806 ksps, differential/single-ended, with channel sequencer and signal averaging - enables high-fidelity multi-channel sensor acquisition with noise reduction. |
| Opamps | Two rail-to-rail opamps with comparator mode and ADC input buffering - supports analog front-end conditioning, threshold detection, and precision signal chain design. |
| Power Modes | Stop (20 nA), Deep Sleep, Hibernate, Sleep - provides scalable power/performance trade-offs for battery-operated and energy-sensitive applications. |
| CapSense | Cypress CapSense Sigma-Delta (CSD) with SmartSense™ auto-tuning and >5:1 SNR - delivers robust water-tolerant touch sensing on any GPIO without external components. |
Pinout & Package
Package: 44-pin TQFP (10 mm × 10 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply | 1.71–5.5 V input powering core, analog, and I/O domains; decoupling required per datasheet layout guidelines. |
| VSS | GND reference | Digital/analog ground plane connection; separation recommended for noise-sensitive analog operation. |
| P0[0]–P0[7] | Programmable GPIO | Support CapSense, LCD segment/common, analog input/output, or digital logic with configurable drive strength/slew rate. |
| P1[0]–P1[7] | Programmable GPIO | Same reconfigurability as Port 0; used for SCB interfaces, TCPWM outputs, or interrupt-capable wake sources. |
| SWDIO / SWCLK | Debug interface | Two-wire Serial Wire Debug (SWD) for programming, tracing, and full on-chip debugging without JTAG pod. |
| XRES | External reset | Active-low asynchronous reset input; internal pull-up enabled by default; overrides all power modes. |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Optional 1–33 MHz crystal connection for precise clock source; not required due to integrated IMO/ILO oscillators. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Subsystem | Two opamps + 12-bit SAR ADC + two low-power comparators enable mixed-signal signal chains to be defined in firmware-not fixed in silicon. |
| CapSense CSD with SmartSense™ | Hardware-accelerated sigma-delta capacitive sensing with automatic calibration eliminates manual tuning and improves field reliability under moisture or EMI. |
| Programmable Digital Interconnect | DSI and automatic routing in PSoC Creator allow dynamic signal path assignment between peripherals and GPIOs-no PCB respins for logic changes. |
| Secure Flash Protection | Three-tier protection (Open/Protected/Kill) disables debug access and prevents partial erasure, meeting industrial security requirements for firmware IP protection. |
| Low-Power Operation | 20 nA Stop mode with GPIO wakeup and sub-μA Deep Sleep enable multi-year battery life in remote sensors and wearables. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on factory HMIs with glove operation and splash resistance. IC Role / Device Role / Timing Role: Primary controller executing CapSense CSD algorithm, driving segmented LCD, and managing Modbus RTU over UART. Use Value: Single-chip integration eliminates external touch controller and reduces BOM cost while maintaining >5:1 SNR under wet conditions. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ with local signal conditioning. IC Role / Device Role / Timing Role: Signal acquisition hub performing analog front-end amplification, 12-bit ADC sampling with averaging, and BLE-ready UART output. Use Value: On-chip opamp buffering and sequenced ADC reduce external component count and improve measurement repeatability across temperature. |
| Motor Control Edge Devices | Medical Diagnostic Handhelds |
Use Scenario: Compact motor driver board requiring fault monitoring, PWM generation, and analog current sensing. IC Role / Device Role / Timing Role: Real-time controller generating center-aligned PWM via TCPWM blocks and triggering kill signals using comparator outputs. Use Value: Hardware comparator-triggered PWM shutdown ensures <1 μs response to overcurrent events-critical for IGBT/MOSFET safety. | Use Scenario: Portable pulse oximeter with analog photodiode signal conditioning and optical LED drive. IC Role / Device Role / Timing Role: Precision analog front-end with opamp transimpedance gain, IDAC-driven LED current control, and synchronized ADC sampling. Use Value: Integrated IDACs deliver stable, programmable LED current without external DACs, improving SpO₂ measurement consistency. |
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 |
|---|---|---|---|
| CY8C4124LQI-443 | Same core, same peripherals, but 40-pin QFN package and no CapSense CSD block - uses legacy CSDv1 instead of CSDv2. | Lacks SmartSense™ auto-tuning and water tolerance; requires manual calibration and external shielding for wet environments. | Select when footprint constraints favor QFN and touch performance requirements are less stringent. |
| CY8C4245AXI-483 | Higher flash (64 kB), added USBFS block, same 44-pin TQFP package and CapSense CSDv2 engine. | Enables USB HID-class touch devices and firmware-over-USB updates - adds complexity and cost where USB is unnecessary. | Select when future-proofing for USB connectivity or larger firmware images is required. |
Compared with CY8C4124LQI-443, CY8C4124AXI-443T offers superior touch robustness and smaller PCB area via TQFP; versus CY8C4245AXI-483, it trades USB capability for lower cost and reduced power consumption in non-USB edge nodes.
Availability
CY8C4124AXI-443T is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control edge devices, and medical diagnostic handhelds requiring stable component supply across extended temperature and long product lifecycles.
Supply support for CY8C4124AXI-443T 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 acquired Cypress Semiconductor in 2020 and now owns and supports the full PSoC® portfolio, delivering high-reliability semiconductor solutions for automotive, industrial, and IoT markets.
CY8C4124AXI-443T belongs to the PSoC 4100 family - designed specifically for cost-sensitive, low-power embedded systems needing flexible analog/digital integration without external components.
FAQ
Does CY8C4124AXI-443T support USB communication?
No. This part lacks a USBFS peripheral block. USB functionality is available only in higher-tier PSoC 4200-series variants like CY8C4245AXI-483. CY8C4124AXI-443T supports UART, SPI, and I²C via its two SCB modules - sufficient for most sensor and control interfaces requiring low pin count and minimal firmware overhead.
What development tools are required to program CY8C4124AXI-443T?
PSoC Creator IDE (free Windows-based tool) is mandatory for schematic-based hardware configuration and component API generation. Programming and debugging use standard SWD interface via MiniProg3 or KitProg2 programmers. No third-party toolchain licensing is needed - GCC-based compiler and debug stack are fully integrated and validated by Infineon.
Can the on-chip opamps drive external loads directly?
Yes - each opamp supports up to 25 mA continuous output current in high-drive external mode, enabling direct driving of small solenoids, LEDs, or analog inputs of external ADCs. Internal high-bandwidth mode (up to 12 MHz GBW) is optimized for ADC buffering and comparator operation, not load driving.
Is flash memory endurance specified for CY8C4124AXI-443T?
Yes - Infineon specifies 100,000 write/erase cycles for flash memory, with data retention guaranteed for 20 years at +85 °C. Flash row-level protection and Kill-mode security prevent accidental or malicious corruption, making it suitable for firmware updates in field-deployed equipment.
CY8C4124AXI-443T 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:
- 16KB (16K 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:
CY8C4124AXI-443T FAQ
1.How can I place an order for CY8C4124AXI-443T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4124AXI-443T 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 CY8C4124AXI-443T reliable?
The price and inventory of CY8C4124AXI-443T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4124AXI-443T is usually 5 days.
3.What payment methods are accepted for CY8C4124AXI-443T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4124AXI-443T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4124AXI-443T?
CY8C4124AXI-443T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4124AXI-443T 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 CY8C4124AXI-443T?
For technical support, including CY8C4124AXI-443T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4124AXI-443T requirements.
6.How does Aetrix verify that CY8C4124AXI-443T is sourced from the original manufacturer or authorized distributors?
All CY8C4124AXI-443T 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 CY8C4124AXI-443T meets industry standards.
7.What is the process for return or replacement of CY8C4124AXI-443T?
All CY8C4124AXI-443T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4124AXI-443T, 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 CY8C4124AXI-443T part is unused and in its original packaging.
Return procedure for CY8C4124AXI-443T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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