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Infineon Technologies CY8C4127AZI-M485
- Part No.:
- CY8C4127AZI-M485
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4127AZI-M485.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,575
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Product details
Overview
CY8C4127AZI-M485 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 (4 opamps, 2 comparators, 12-bit SAR ADC @ 806 Ksps) and digital peripherals (4 SCBs, 8 TCPWM blocks), and supports capacitive sensing via CSD with >5:1 SNR. It targets embedded human-interface applications such as touch-enabled industrial HMIs and smart appliance control panels.
For engineers reviewing the CY8C4127AZI-M485 datasheet, CY8C4127AZI-M485 pinout, CY8C4127AZI-M485 application, or CY8C4127AZI-M485 equivalent, key selection considerations include Deep Sleep current (20 nA), CAPSENSE™ hardware tuning (SmartSense), LCD segment drive capability in low-power modes, and runtime-reconfigurable serial communication blocks (I²C/SPI/UART).
Technical Context
The device implements a dual-domain architecture: a fixed-function CPU subsystem (Cortex-M0 + DMA + memory) tightly coupled with a programmable analog-digital fabric. Analog resources-including opamps configurable as buffers, comparators, or ADC inputs-are independently clocked and retain functionality in Deep Sleep mode.
Digital flexibility is delivered through eight TCPWM blocks supporting center-aligned PWM and comparator-triggered kill signals for motor control safety, plus four SCBs that can be dynamically assigned as I²C masters/slaves, SPI controllers/peripherals, or UART transceivers without hardware reconfiguration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 24 MHz max - enables deterministic real-time control with single-cycle multiply for efficient math-intensive firmware. |
| Flash Memory | 128 kB with Read Accelerator - supports fast code execution and firmware updates without performance penalty in interrupt-heavy applications. |
| SRAM | 16 kB - sufficient for real-time sensor fusion, multi-channel CAPSENSE™ processing, and small RTOS stacks. |
| ADC | 12-bit SAR, 806 Ksps - delivers high-resolution sampling for precision analog monitoring (e.g., battery voltage, temperature, current sense). |
| Low-Power Modes | 20 nA Stop Mode with GPIO wakeup - enables ultra-low-energy operation in battery-powered devices requiring long standby life. |
| CAPSENSE™ | Capacitive Sigma-Delta (CSD) with SmartSense auto-tuning - eliminates manual calibration and maintains robust touch detection under moisture or EMI stress. |
| LCD Drive | Segment drive on all GPIO pins, active in Deep Sleep - allows persistent display updates without waking CPU, reducing system power by >90% during idle. |
Pinout & Package
This device is housed in a 68-pin QFN package (7 mm × 7 mm, 0.4 mm pitch) with exposed thermal pad. All 55 GPIOs support multiple functions including CAPSENSE™, analog input/output, LCD segment/common, and digital I/O with programmable drive strength and slew rate.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main supply input | 1.71–5.5 V regulated input powering core, analog, and I/O domains; decoupling required per datasheet layout guidelines. |
| VSS | Ground reference | Common return path for all domains; separate analog/digital ground connections recommended for noise-sensitive designs. |
| XRES | External reset input | Active-low asynchronous reset with internal pull-up; compatible with pushbutton or supervisor IC assertion. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug interface enabling full programming, debugging, and real-time trace without dedicated JTAG pins. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO | Multi-function pins supporting CAPSENSE™, analog I/O, LCD segments, SCB interfaces, and TCPWM outputs - configured at runtime via PSoC Creator APIs. |
Key Features
| Feature | Design Value |
|---|---|
| Runtime-reconfigurable SCBs | Four independent serial blocks dynamically switch between I²C, SPI, and UART protocols-enabling flexible peripheral connectivity without PCB redesign. |
| Deep Sleep analog retention | Opamps and comparators remain operational at 20 nA system current-allowing continuous sensor monitoring or touch wake-up without CPU intervention. |
| Hardware-accelerated CAPSENSE™ | CSD engine with automatic SmartSense tuning-reduces firmware development time by eliminating manual parameter optimization for varying electrode geometries and environmental conditions. |
| Programmable TCPWM kill logic | Comparator outputs directly trigger PWM shutdown within one clock cycle-meeting functional safety requirements for motor drives and power converters. |
| Unified GPIO architecture | All 55 pins support analog, digital, LCD, and CAPSENSE™ functions with per-pin drive strength and slew control-maximizing layout reuse across product variants. |
Applications
| Industrial HMI Panels | Smart Home Appliances |
|---|---|
Use Scenario: Touch-enabled control panel on HVAC systems or PLC operator interfaces operating in harsh electrical environments with wide temperature swings. IC Role / Device Role / Timing Role: Main system controller handling CAPSENSE™ button scanning, LCD segment refresh, real-time temperature compensation, and RS-485 communication via SCB. Use Value: CSD's >5:1 SNR and water tolerance ensure reliable touch response even with condensation or glove use; Deep Sleep mode extends battery backup life during power outages. | Use Scenario: User interface for refrigerators, ovens, or washing machines requiring low-power always-on touch sensing and segmented LCD display. IC Role / Device Role / Timing Role: Single-chip solution managing capacitive keys, LCD backlight dimming via TCPWM, appliance status reporting over I²C to main MCU, and ambient temperature monitoring via integrated sensor. Use Value: Integrated opamps buffer thermistor signals with programmable gain; LCD drive in Deep Sleep reduces system power to <1 µA while maintaining display visibility. |
| Medical Patient Monitors | IoT Edge Sensor Nodes |
Use Scenario: Portable vital sign monitors needing FDA-compliant touch UI, analog front-end signal conditioning, and low EMI emissions. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing ECG/SpO₂ analog channels via SAR ADC, performing CAPSENSE™ for non-invasive controls, and driving low-power OLED segments. Use Value: 12-bit ADC with 806 Ksps supports oversampling for noise reduction; programmable opamp input buffering rejects common-mode interference without external components. | Use Scenario: Battery-powered environmental sensors deployed in remote locations for air quality or occupancy detection. IC Role / Device Role / Timing Role: Autonomous node executing CAPSENSE™ motion detection, analog gas sensor signal conditioning, and LoRaWAN data transmission via UART-connected transceiver. Use Value: 20 nA Stop Mode enables 10+ year battery life; SmartSense auto-calibration adapts to aging electrodes and dust accumulation without field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4127LQI-M483 | Same core and analog IP but in 48-pin QFN; fewer GPIOs (34 vs. 55) and no LCD drive capability. | Suitable for space-constrained designs without display requirements. | Select when board area is critical and LCD/CAPSENSE™ channel count is reduced. |
| STM32G071KBT6 | Arm Cortex-M0+, higher clock (64 MHz), but lacks integrated CAPSENSE™, programmable analog, and hardware LCD drive. | Requires external components for touch sensing and display control, increasing BOM and layout complexity. | Prefer when raw compute throughput dominates over mixed-signal integration and ultra-low-power analog retention. |
Compared with CY8C4127LQI-M483, this part adds LCD drive and 21 extra GPIOs for larger HMI layouts; versus STM32G071KBT6, it eliminates external touch controllers and analog signal chain components-reducing total system cost and qualification effort for touch-display applications.
Availability
CY8C4127AZI-M485 is available at Aetrix Electronics and suitable for industrial HMIs, smart home appliances, medical patient monitors, and IoT edge sensor nodes requiring stable component supply across extended temperature ranges (–40°C to +105°C).
Supply support for CY8C4127AZI-M485 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 MCUs, and secure microcontrollers, with global R&D and manufacturing infrastructure.
The PSoC™ 4100M product line was designed to deliver configurable mixed-signal embedded control for cost-sensitive, low-power human-interface applications-integrating analog front-ends, touch sensing, and display drivers into a single chip.
FAQ
Does CY8C4127AZI-M485 support USB connectivity?
No. This device does not include a USB PHY or USB controller. Communication is limited to I²C, SPI, UART, and CAN (via external transceiver). USB functionality requires an external bridge IC or migration to a PSoC™ 4 BLE or PSoC™ 6 family device with native USB support.
What development tools are required to program CY8C4127AZI-M485?
PSoC™ Creator IDE is mandatory for schematic-based design and automatic routing of analog/digital resources. Programming and debugging use standard Arm SWD via MiniProg4 or KitProg3 programmers. Post-design firmware development can proceed in Arm GCC or Keil MDK, but initial peripheral configuration must be done in PSoC Creator.
Can the 12-bit SAR ADC measure signals beyond the VDD rail?
No. The SAR ADC input range is strictly 0 V to VDD (1.71–5.5 V). Input signals exceeding VDD risk damage or erroneous conversion. For over-rail sensing, external level-shifting circuitry or a dedicated high-voltage ADC driver is required-neither is provided internally.
Is the SmartSense auto-tuning feature enabled by default in production firmware?
SmartSense is a software library included in PSoC™ Creator; it is not hardware-activated by default. Developers must explicitly call CapSense_Start() and CapSense_SmartSenseTuner() during initialization. Calibration occurs once at power-up unless re-triggered-no runtime overhead after tuning completes.
CY8C4127AZI-M485 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-M485 FAQ
1.How can I place an order for CY8C4127AZI-M485 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127AZI-M485 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-M485 reliable?
The price and inventory of CY8C4127AZI-M485 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127AZI-M485 is usually 5 days.
3.What payment methods are accepted for CY8C4127AZI-M485?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127AZI-M485 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127AZI-M485?
CY8C4127AZI-M485 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127AZI-M485 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-M485?
For technical support, including CY8C4127AZI-M485 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127AZI-M485 requirements.
6.How does Aetrix verify that CY8C4127AZI-M485 is sourced from the original manufacturer or authorized distributors?
All CY8C4127AZI-M485 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-M485 meets industry standards.
7.What is the process for return or replacement of CY8C4127AZI-M485?
All CY8C4127AZI-M485 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127AZI-M485, 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-M485 part is unused and in its original packaging.
Return procedure for CY8C4127AZI-M485:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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