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Infineon Technologies CY8C4127AZI-M475
- Part No.:
- CY8C4127AZI-M475
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4127AZI-M475.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
CY8C4127AZI-M475 from Infineon is a 32-bit programmable microcontroller based on the Arm® Cortex®-M0 CPU, operating at up to 24 MHz with 128 kB flash and 16 kB SRAM. It integrates reconfigurable analog blocks-including four opamps, two low-power comparators, a 12-bit SAR ADC (806 kSPS), and capacitive sensing (CSD)-and supports deep-sleep operation down to 20 nA. It is used in battery-powered human-interface devices such as touch-enabled thermostats and smart appliance control panels.
For engineers reviewing the CY8C4127AZI-M475 datasheet, CY8C4127AZI-M475 pinout, CY8C4127AZI-M475 application, or CY8C4127AZI-M475 equivalent, key selection criteria include its integrated CAPSENSE™ capability, Deep Sleep current budget, TCPWM flexibility for motor timing, and compatibility with PSoC™ Creator for mixed-signal schematic design.
Technical Context
The device implements a dual-domain power architecture with independent analog and digital voltage regulators, enabling simultaneous operation of high-precision analog peripherals (e.g., opamps in Deep Sleep) and digital logic at 24 MHz. Its programmable interconnect fabric routes signals between GPIOs, analog blocks, and digital peripherals without fixed routing constraints.
Capacitive sensing uses the dedicated CSD block with Sigma-Delta modulation, delivering >5:1 SNR and hardware-accelerated SmartSense auto-tuning-eliminating manual calibration. The eight TCPWM blocks support center-aligned PWM, comparator-triggered kill signals, and synchronized multi-channel timing for motor control and LED dimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0 @ 24 MHz with single-cycle multiply - enables deterministic real-time control and efficient firmware execution. |
| Memory | 128 kB flash + 16 kB SRAM - sufficient for complex CAPSENSE™ + LCD + communication stacks with field-upgradable firmware. |
| ADC | 12-bit SAR @ 806 kSPS - supports high-speed sensor acquisition (e.g., temperature, current) with minimal CPU overhead. |
| Low-Power Modes | 20 nA Stop Mode with GPIO wakeup - extends battery life in always-on touch interfaces without external wake circuitry. |
| Analog Peripherals | 4 opamps (Deep Sleep capable), 2 low-power comparators, 4 IDACs - enables self-contained analog signal conditioning and capacitive sensing on any GPIO. |
| Digital Peripherals | 8 TCPWM blocks, 4 SCBs (I²C/SPI/UART), LCD direct drive on all pins - supports multi-function HMI with display, touch, and serial connectivity in one chip. |
| Operating Range | –40°C to +105°C, 1.71–5.5 V supply - qualified for industrial and automotive cabin applications without derating. |
Pinout & Package
This device is housed in a 68-pin QFN package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. All 55 GPIOs support configurable drive modes (open-drain, strong, resistive pull-up/down), slew rate control, and programmable analog/digital/CAPSENSE™/LCD functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VDDD | Analog/Digital Supply | Separate 1.71–5.5 V supplies enable noise isolation between analog and digital domains. |
| XRES | Active-Low Reset Input | Asynchronous reset with internal pull-up; accepts 1.2–5.5 V logic levels for robust system initialization. |
| SWDCK / SWDIO | Debug Interface | Two-pin Serial Wire Debug interface supports programming, real-time tracing, and low-overhead runtime debugging. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Each pin can be assigned as CAPSENSE™ sensor, LCD segment/common, opamp I/O, ADC input, or digital peripheral signal. |
| VREF | ADC Reference Input | Accepts external reference (1.024 V typical) or internal 1.024 V bandgap for stable SAR ADC conversions. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Subsystem | Four opamps with ADC buffering, comparator mode, and high-current drive - eliminates need for external signal-conditioning ICs in sensor front-ends. |
| Hardware-Accelerated CAPSENSE™ | CSD block with >5:1 SNR and SmartSense auto-tuning - delivers production-ready touch performance without firmware calibration effort. |
| Flexible Timing Engine | Eight TCPWM blocks with center-aligned PWM, dead-time insertion, and comparator-triggered kill - supports BLDC motor control and safety-critical timing. |
| Unified Development Flow | PSoC™ Creator IDE enables schematic-based design with automatic analog/digital routing - reduces integration time for mixed-signal applications. |
| Segment LCD Driver | Direct drive on all GPIOs with 4-bit memory per pin in Deep Sleep - enables ultra-low-power segmented displays in portable instrumentation. |
Applications
| Smart Thermostat Control Panel | Industrial HMI with Touch & Display |
|---|---|
|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature sensing, and 4-digit LCD display. IC Role / Device Role: Single-chip system controller handling CAPSENSE™ button scanning, SAR ADC temperature reading, LCD segment driving, and UART communication to HVAC mainboard. Use Value: Eliminates discrete opamp, comparator, and LCD driver ICs while maintaining <20 nA standby current for 5-year battery life. |
Use Scenario: Factory-floor operator interface with water-resistant touch overlay, backlight dimming, and RS-485 diagnostics port. IC Role / Device Role: Main HMI processor executing touch gesture recognition, PWM-controlled LED backlight, and SCB-configured UART-to-RS485 bridge. Use Value: Leverages TCPWM dead-time control for flicker-free dimming and CSD water tolerance for reliable operation in humid environments. |
| Portable Medical Monitor UI | White Goods Appliance Control Board |
|
Use Scenario: Battery-powered patient monitor with touch slider for volume control, ECG signal conditioning, and segmented status display. IC Role / Device Role: Analog front-end + UI controller combining opamp-based ECG amplification, CAPSENSE™ slider, and LCD drive in Deep Sleep. Use Value: Opamps operate in Deep Sleep at sub-µA current, enabling continuous touch readiness without compromising battery runtime. |
Use Scenario: Washing machine control board managing motor phase timing, door lock sensing, detergent dispensing solenoids, and LED indicators. IC Role / Device Role: System-on-chip managing TCPWM-driven triac firing, GPIO-based solenoid control, and CAPSENSE™ for child-lock activation. Use Value: Eight TCPWM blocks allow synchronized motor commutation and safety interlock timing, reducing BOM count vs. MCU + discrete timer IC solution. |
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 |
|---|---|---|---|
| CY8C4127LQI-M445 | Same core and analog subsystem, but 48-pin QFN package with only 34 GPIOs and no LCD drive capability. | Lacks segment LCD support and has fewer CAPSENSE™ channels - suitable for touch-only designs without display. | Select when display integration is unnecessary and PCB space is constrained. |
| CY8C4247LQI-M485 | Higher flash (256 kB) and SRAM (32 kB); adds USB 2.0 FS PHY and enhanced CapSense™ tuning algorithms. | Better suited for USB-connected devices requiring firmware updates or higher-capacity data logging buffers. | Choose when USB connectivity or larger code footprint is required; not drop-in compatible due to different pinout and voltage regulator specs. |
Compared with CY8C4127LQI-M445, this part adds LCD drive and 21 extra GPIOs for richer HMI; versus CY8C4247LQI-M485, it trades USB and memory headroom for lower cost and identical low-power analog performance in display-integrated edge nodes.
Availability
CY8C4127AZI-M475 is available at Aetrix Electronics and suitable for industrial HMI, smart appliance control, portable medical UIs, and battery-powered touch interfaces requiring stable component supply across extended temperature ranges.
Supply support for CY8C4127AZI-M475 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 ICs, and programmable mixed-signal solutions with global manufacturing and quality certification.
This part belongs to the PSoC™ 4100M family-designed specifically for cost-sensitive, low-power embedded systems requiring integrated analog signal processing, capacitive sensing, and flexible digital peripherals in a single chip.
FAQ
Does CY8C4127AZI-M475 support hardware-based capacitive touch with water tolerance?
Yes. It integrates Infineon's Capacitive Sigma-Delta (CSD) sensing engine with >5:1 SNR and built-in water-tolerance algorithms. The SmartSense auto-tuning feature performs real-time calibration without host CPU intervention, enabling reliable operation under moisture or condensation.
What debug interface does CY8C4127AZI-M475 use, and is external hardware required?
It uses a two-pin Serial Wire Debug (SWD) interface (SWDCK and SWDIO). No external debug probe is mandatory-programming and debugging can be performed via KitProg3 on official Infineon development kits, or through industry-standard Arm® debug tools like Segger J-Link with appropriate SWD adapter.
Can the opamps operate during Deep Sleep mode, and what is their typical current draw?
Yes, all four opamps remain functional in Deep Sleep mode with typical quiescent current of 1.2 µA per amplifier. They retain full configurability-including gain setting, output drive strength, and input source selection-enabling continuous analog monitoring without waking the CPU.
Is PSoC™ Creator still the recommended IDE for new CY8C4127AZI-M475 designs?
Yes. PSoC™ Creator remains the officially supported IDE for this device family, providing schematic-based design entry, automatic analog/digital routing, and pre-verified CAPSENSE™ and TCPWM components. While ModusToolbox™ supports newer PSoC™ generations, Creator retains full feature parity and validation for CY8C4127AZI-M475.
CY8C4127AZI-M475 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C41xx - M
- 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:
- 51
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b SAR; 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127AZI-M475 FAQ
1.How can I place an order for CY8C4127AZI-M475 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127AZI-M475 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 CY8C4127AZI-M475 reliable?
The price and inventory of CY8C4127AZI-M475 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127AZI-M475 is usually 5 days.
3.What payment methods are accepted for CY8C4127AZI-M475?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127AZI-M475 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127AZI-M475?
CY8C4127AZI-M475 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127AZI-M475 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 CY8C4127AZI-M475?
For technical support, including CY8C4127AZI-M475 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127AZI-M475 requirements.
6.How does Aetrix verify that CY8C4127AZI-M475 is sourced from the original manufacturer or authorized distributors?
All CY8C4127AZI-M475 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 CY8C4127AZI-M475 meets industry standards.
7.What is the process for return or replacement of CY8C4127AZI-M475?
All CY8C4127AZI-M475 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127AZI-M475, 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 CY8C4127AZI-M475 part is unused and in its original packaging.
Return procedure for CY8C4127AZI-M475:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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