Infineon Technologies CY8C5366AXI-001
- Part No.:
- CY8C5366AXI-001
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C5366AXI-001.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 100TQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,657
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Product details
Overview
CY8C5366AXI-001 from Infineon Technologies (acquired Cypress Semiconductor) is a programmable system-on-chip (PSoC® 5) integrating a 32-bit ARM Cortex-M3 CPU, 256 KB flash, 64 KB SRAM, 12-bit SAR ADC (700 ksps), dual 8-bit DACs (5.5 Msps), and 24 UDB-based digital peripherals. It operates from 2.7–5.5 V, supports CapSense® on GPIO, and targets embedded control with mixed-signal acquisition in industrial HMI and sensor fusion systems.
For engineers reviewing the CY8C5366AXI-001 datasheet, CY8C5366AXI-001 pinout, CY8C5366AXI-001 application, or CY8C5366AXI-001 equivalent, key selection criteria include USB 2.0 FS support, configurable analog blocks (PGA/TIA), low-power hibernate mode (300 nA), and routing flexibility across 60 GPIOs with full analog/digital peripheral connectivity.
Technical Context
The device implements a hierarchical architecture with a Cortex-M3 core tightly coupled to a programmable digital subsystem (24 UDBs + DSI routing) and an analog subsystem featuring SAR ADC, dual DACs, four comparators, two opamps, and two SC/CT blocks. Clocking includes IMO (3–48 MHz), PLL (up to 67 MHz), and 32.768 kHz RTC oscillator.
Memory subsystem comprises 256 KB flash (100k write cycles, 20-yr retention), 64 KB SRAM, 2 KB EEPROM (1M cycles), and 128-byte cache. Power management supports sleep (2 µA) and hibernate (300 nA with RAM retention) modes, with I/O voltage domains configurable from 1.2 V to 5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 67 MHz max - enables real-time deterministic control with NVIC interrupt handling and SWD debug support. |
| Flash Memory | 256 KB, 100,000 write cycles, 20-year retention - sufficient for complex firmware with field-upgradable security features. |
| SAR ADC | 12-bit, 700 ksps, ±1 LSB INL - supports high-fidelity sensor signal acquisition (e.g., thermocouples, ultrasonic transducers). |
| DAC Output | Two 8-bit IDACs/VDACs, 5.5 Msps current / 1 Msps voltage - enables fast analog waveform generation or precision biasing. |
| I/O Count | 60 GPIO + 8 SIO + 2 USBIO - provides flexible routing to analog/digital peripherals and LCD/CapSense interfaces. |
| Power Modes | Hibernate: 300 nA with RAM retention; Sleep: 2 µA - critical for battery-powered edge nodes requiring long idle duration. |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade deployment without derating. |
Pinout & Package
Package: 68-pin QFN (9 mm × 9 mm, 0.5 mm pitch), RoHS-compliant, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core power supply | 2.7–5.5 V main supply for digital logic and CPU subsystem. |
| VDDA | Analog power supply | 2.7–5.5 V dedicated rail for ADC, DAC, opamps, and reference circuitry. |
| XTAL_IN / XTAL_OUT | Crystal oscillator interface | Supports 4–25 MHz external crystal for precise clocking and USB timing compliance. |
| USB_DP / USB_DM | Full-Speed USB 2.0 differential pair | Integrated PHY enables plug-and-play USB communication without external transceiver. |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Configurable GPIO/SIO | Each pin supports analog input/output, CapSense®, LCD segment drive, or digital peripheral routing via DSI. |
Key Features
| Feature | Design Value |
|---|---|
| UDB Array (24 units) | Enables custom digital logic (e.g., PRS, CRC, LIN, quadrature decoder) without FPGA-level complexity or cost. |
| CapSense® on all GPIO | Eliminates external touch controller ICs; supports self- and mutual-capacitance sensing with noise immunity tuning. |
| Programmable SC/CT Blocks | Configurable as PGA (gain up to 48×), TIA (for photodiode current-to-voltage conversion), or mixer - reduces analog BOM count. |
| USB 2.0 Full-Speed PHY | On-die transceiver with integrated termination and slew-rate control - simplifies PCB layout and EMI compliance. |
| Multi-domain I/O voltage | Four independent VDDIO domains (1.2–5.5 V) allow interfacing with legacy 3.3 V, modern 1.8 V, and high-voltage sensors simultaneously. |
Applications
| Industrial HMI Panels | Medical Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled control panels in PLC cabinets or factory-floor HMIs operating in noisy EMI environments. IC Role / Device Role / Timing Role: Central PSoC managing CapSense® buttons/sliders, driving segmented LCD, acquiring analog sensor inputs (temperature, pressure), and communicating via USB or I²C. Use Value: Single-chip integration eliminates discrete ADC, touch controller, and USB transceiver - reducing layer count and BOM cost by >30%. | Use Scenario: Portable patient monitors measuring ECG, SpO₂, and temperature with battery life >72 hours. IC Role / Device Role / Timing Role: Signal acquisition hub using SAR ADC for ECG front-end, IDACs for LED drive in pulse oximetry, and hibernate mode between measurements. Use Value: 300 nA hibernate with RAM retention preserves calibration state and context across sleep cycles - enabling rapid wake-up and measurement continuity. |
| Smart Building Sensors | Automated Test Equipment (ATE) |
Use Scenario: Wireless environmental sensor nodes monitoring CO₂, humidity, and ambient light in HVAC ducts. IC Role / Device Role / Timing Role: Mixed-signal processor acquiring analog sensor outputs, performing local compensation algorithms, and preparing data for BLE/Wi-Fi MCU via SPI/I²C. Use Value: Configurable SC/CT blocks implement temperature-compensated gain stages for NDIR CO₂ sensors - improving accuracy without external opamp networks. | Use Scenario: Modular ATE fixtures requiring programmable analog stimulus and response capture. IC Role / Device Role / Timing Role: Precision waveform generator (via VDAC + UDB PWM) and high-speed digitizer (SAR ADC + DMA) synchronized to internal clock tree. Use Value: 700 ksps ADC with <1 LSB INL and DMA-driven data streaming enable real-time pass/fail analysis at production test speeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C5868AXI-LP039 | Same package, 512 KB flash, 128 KB SRAM, adds Ethernet MAC and more UDBs | Better suited for networked industrial gateways requiring TCP/IP stack and larger code footprint | Select when firmware size exceeds 256 KB or Ethernet connectivity is mandatory. |
| STM32F303VCT6 | ARM Cortex-M4F, 256 KB flash, 48 KB SRAM, no integrated CapSense or SC/CT blocks | Requires external components for capacitive touch or precision analog front-ends | Select when floating-point math or DSP acceleration is prioritized over analog configurability. |
Compared with CY8C5366AXI-001, CY8C5868AXI-LP039 offers higher memory and networking capability at cost premium, while STM32F303VCT6 trades analog flexibility for computational throughput - making CY8C5366AXI-001 optimal for cost-sensitive, analog-rich embedded designs needing rapid prototyping.
Availability
CY8C5366AXI-001 is available at Aetrix Electronics and suitable for industrial HMI panels, medical sensor nodes, smart building sensors, and automated test equipment requiring stable component supply across multi-year production cycles.
Supply support for CY8C5366AXI-001 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 the PSoC® portfolio, delivering scalable, secure, and energy-efficient semiconductor solutions for automotive, industrial, and IoT markets.
The CY8C53 family belongs to Infineon's PSoC® 5 programmable SoC product line, designed specifically for embedded systems demanding tight integration of analog signal conditioning, digital logic, and real-time control in a single chip.
FAQ
What development tools are required to program CY8C5366AXI-001?
PSoC® Creator™ IDE (discontinued but supported for legacy projects) or ModusToolbox™ with PSoC™ Component Pack is required. Programming uses SWD interface via KitProg2/3 or MiniProg3; no external programmer needed. Firmware updates can be performed in-system via UART, I²C, SPI, or USB bootloader.
Does CY8C5366AXI-001 support USB device enumeration without external crystals?
Yes - it includes an internal 24 MHz IMO trimmed to ±2% over voltage/temperature, sufficient for USB Full-Speed device enumeration. For host-mode or tighter timing tolerance (e.g., USB audio), a 24 MHz external crystal is recommended per USB-IF compliance requirements.
Can all 60 GPIOs be used simultaneously for analog input with the SAR ADC?
No - the SAR ADC has one sample-and-hold channel and supports up to 62 analog inputs only through time-multiplexed scanning via internal analog muxes. Simultaneous sampling requires external analog front-end; maximum concurrent analog channels depend on routing constraints and clock rate.
Is the 2 KB EEPROM truly byte-erasable and wear-leveled in hardware?
Yes - the EEPROM block supports true byte-level writes and erases with built-in wear leveling across 2 KB address space. Each byte endures 1 million cycles with guaranteed 20-year data retention at 85°C, managed by dedicated hardware controller without firmware overhead.
CY8C5366AXI-001 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 5 CY8C53
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 67MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART, USB
- Peripherals:
- CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 60
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 1x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C5366AXI-001 FAQ
1.How can I place an order for CY8C5366AXI-001 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C5366AXI-001 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 CY8C5366AXI-001 reliable?
The price and inventory of CY8C5366AXI-001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C5366AXI-001 is usually 5 days.
3.What payment methods are accepted for CY8C5366AXI-001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C5366AXI-001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C5366AXI-001?
CY8C5366AXI-001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C5366AXI-001 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 CY8C5366AXI-001?
For technical support, including CY8C5366AXI-001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C5366AXI-001 requirements.
6.How does Aetrix verify that CY8C5366AXI-001 is sourced from the original manufacturer or authorized distributors?
All CY8C5366AXI-001 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 CY8C5366AXI-001 meets industry standards.
7.What is the process for return or replacement of CY8C5366AXI-001?
All CY8C5366AXI-001 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C5366AXI-001, 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 CY8C5366AXI-001 part is unused and in its original packaging.
Return procedure for CY8C5366AXI-001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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