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Infineon Technologies CY8C5267AXI-LP051
- Part No.:
- CY8C5267AXI-LP051
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
CY8C5267AXI-LP051.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:796
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Product details
Overview
CY8C5267AXI-LP051 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 programmable system-on-chip (PSoC® 5LP) integrating configurable analog/digital peripherals, 256 KB flash, 64 KB RAM, and USB 2.0 Full-Speed interface. It operates from 1.71–5.5 V across –40 to +85 °C, supports CapSense® up to 62 sensors, and delivers ultra-low-power operation with 300 nA hibernate mode. Used in embedded human-interface and sensor-fusion applications requiring mixed-signal integration and field-upgradable firmware.
For engineers reviewing the CY8C5267AXI-LP051 datasheet, CY8C5267AXI-LP051 pinout, CY8C5267AXI-LP051 application, or CY8C5267AXI-LP051 equivalent, key selection criteria include its 68-pin QFN package, 12-bit SAR ADC with 1.024 V ±1% reference, programmable UDB array for custom digital logic, and integrated USBIO pins enabling direct USB device connectivity without external transceivers.
Technical Context
The CY8C5267AXI-LP051 implements a tightly coupled architecture where the Cortex-M3 CPU executes firmware while routing digital signals through the Digital System Interconnect (DSI) to 24 Universal Digital Blocks (UDBs). Each UDB combines PAL/PLD logic with a state machine engine, enabling synthesis of UART, SPI, PWM, PRS, CRC, or custom gate-level functions.
Analog signal paths are managed via dedicated routing to a 12-bit SAR ADC, dual comparators, 8-bit DAC, and CapSense® sensing engine-all referenced to a stable 1.024 V ±1% internal voltage source. Clocking flexibility includes a 3–74 MHz IMO, PLL up to 80 MHz, and low-power ILO at 1/33/100 kHz, with 12 dividers routable to any peripheral.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 80 MHz max - enables real-time deterministic control with 32-bit precision and 32 interrupt inputs. |
| Memory | 256 KB flash (with cache/security), 64 KB RAM, 2 KB EEPROM - supports secure bootloader, firmware updates, and data logging without external storage. |
| Analog Peripherals | 12-bit SAR ADC (1 Msps), dual comparators, 8-bit DAC, 1.024 V ±1% reference - enables high-accuracy sensor signal conditioning and closed-loop analog control. |
| Digital Peripherals | 4× TCPWM blocks, I²C (1 Mbps), USB 2.0 FS (12 Mbps), 20–24 UDBs - allows concurrent motor control, communication, and custom logic synthesis on one die. |
| Power Modes | 300 nA hibernate (RAM retention), 2 µA sleep, 3.1 mA @ 6 MHz active - meets battery-powered IoT node requirements for multi-year operation. |
| I/O System | 62 GPIOs, 8 SIOs (25 mA sink, overvoltage tolerant), USBIO pins - supports direct LCD drive (46×16), hot-swap interfaces, and robust industrial I/O interfacing. |
| Clocking | Internal PLL (up to 80 MHz), IMO (3–74 MHz, ±2% @ 3 MHz), ILO (1/33/100 kHz), 32.768 kHz RTC crystal support - eliminates need for external clock sources in most designs. |
Pinout & Package
Package: 68-pin QFN (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA/VDDD | Analog/Digital Power Supply | Separate 1.71–5.5 V domains enable noise-isolated analog operation and flexible power domain partitioning. |
| P0[0]–P0[7] | General-Purpose I/O | Configurable as GPIO, CapSense®, LCD segment/common, or routed to any digital/analog peripheral via DSI/AI. |
| SIO[0]–SIO[7] | Performance I/O | 25 mA sink capability, programmable thresholds, comparator input/output, hot-swap tolerant - suitable for driving LEDs, relays, or noisy industrial buses. |
| USB_DP/USB_DM | USB 2.0 Full-Speed Interface | Dedicated USBIO pins with integrated transceiver and pull-up control - enables USB device functionality without external PHY. |
| XRES | External Reset Input | Active-low asynchronous reset with internal pull-up - provides reliable system initialization under brown-out or ESD events. |
| SWDCK/SWDIO | Serial Wire Debug Interface | 2-wire debug port supporting programming, real-time trace, and non-intrusive breakpoints - reduces debug footprint vs. JTAG. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Configurable SAR ADC, DAC, comparators, and CapSense® engine allow single-chip sensor front-end design without discrete op-amps or ADCs. |
| Universal Digital Block (UDB) Array | 24 UDBs with PAL/PLD + state machine enable hardware-accelerated digital functions (e.g., custom protocol engines or motor commutation logic) without FPGA overhead. |
| Flexible Routing Architecture | Any analog or digital peripheral can be connected to any GPIO via DSI/AI - eliminates PCB routing bottlenecks and enables late-stage design changes. |
| Integrated USB 2.0 Full-Speed | On-die USB transceiver with internal oscillator eliminates external crystal and PHY, reducing BOM count and board area by ≥3 components. |
Applications
| Capacitive Touch Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Consumer appliance control panel with slider, buttons, and proximity wake-up. IC Role / Device Role / Timing Role: PSoC 5LP acts as touch controller and system manager, scanning up to 62 CapSense® electrodes and executing UI logic. Use Value: Eliminates mechanical switches and external touch controller IC, reducing component count and enabling dynamic UI reconfiguration via firmware update. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration. IC Role / Device Role / Timing Role: Central sensor fusion hub performing ADC sampling, I²C sensor polling, low-power scheduling, and USB data upload. Use Value: 300 nA hibernate mode extends battery life to >5 years; integrated SAR ADC and comparators reduce external signal-conditioning circuitry. |
| USB Human Interface Device | Motor Control Edge Node |
|
Use Scenario: Programmable USB keyboard or gaming controller with RGB lighting and macro support. IC Role / Device Role / Timing Role: USB device controller with HID class firmware, PWM-driven LED control, and GPIO matrix scanning. Use Value: Single-chip USB HID implementation avoids external microcontroller + USB PHY, cutting latency and bill-of-materials cost. |
Use Scenario: Brushless DC motor driver with hall-effect feedback, current sensing, and closed-loop speed regulation. IC Role / Device Role / Timing Role: Real-time motor commutation controller using TCPWM blocks, ADC for current sampling, and UDB-based encoder decoding. Use Value: Hardware-accelerated PWM timing (sub-100 ns jitter) and synchronized ADC sampling ensure precise torque control and EMI reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C5868AXI-LP035 | Higher memory (512 KB flash, 64 KB RAM), 100-pin TQFP package, same core/peripherals - adds more GPIOs and routing resources. | Required for designs needing >62 GPIOs or additional analog channels; larger footprint and higher cost. | Select when scaling beyond 62 sensors or requiring extra UDBs for complex digital logic synthesis. |
| STM32F411RE | Arm Cortex-M4F core, no integrated CapSense® or UDBs, requires external ADC/comparator, no USBIO - relies on standard MCU peripherals. | Suitable for pure firmware-centric applications without capacitive touch or custom analog front-ends. | Choose only if existing STM32 toolchain familiarity outweighs loss of PSoC's analog/digital configurability and CapSense® integration. |
Compared with CY8C5267AXI-LP051, the CY8C5868AXI-LP035 offers expanded I/O and memory for larger systems but increases board area and cost, while the STM32F411RE sacrifices PSoC's unified analog/digital programmability for broader ecosystem support and floating-point acceleration - making it less optimal for mixed-signal human-interface designs.
Availability
CY8C5267AXI-LP051 is available at Aetrix Electronics and suitable for capacitive touch interfaces, industrial sensor nodes, USB human-interface devices, and motor control edge nodes requiring stable component supply and long-term manufacturability.
Supply support for CY8C5267AXI-LP051 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.
CY8C5267AXI-LP051 belongs to the PSoC® 5LP family - engineered for ultra-low-power, mixed-signal embedded control where analog sensing, digital processing, and USB connectivity must coexist on a single chip without external glue logic.
FAQ
What development tools are required to program CY8C5267AXI-LP051?
PSoC Creator™ IDE (free download from Infineon) is the official development environment, providing schematic-based hardware design, C firmware coding, and drag-and-drop PSoC Components™. Programming is supported via SWD using MiniProg3 or KitProg2 debuggers; no third-party toolchain licensing is needed.
Does CY8C5267AXI-LP051 support secure firmware updates?
Yes - it includes flash security features such as read protection, write protection, and secure boot with signature verification. The 256 KB flash supports dual-bank operation, enabling over-the-air (OTA) updates with rollback capability and encrypted bootloader execution.
Can the internal 1.024 V reference be used for external ADCs?
No - the 1.024 V ±1% reference is internally routed only to the on-chip SAR ADC and comparators. It is not available on any pin or as a buffered output; external precision references must be supplied separately for external analog components.
Is USB functionality dependent on an external crystal?
No - USB 2.0 Full-Speed operation uses the internal IMO calibrated to ±0.25% accuracy, eliminating the need for an external 12 MHz crystal. This is confirmed in the datasheet (Document 001-84933 Rev. *P, Section 7.5) and validated by TID#10840032 certification.
CY8C5267AXI-LP051 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 100-LQFP
- Series:
- PSOC™ 5 CY8C52LP
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 62
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 1x12b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C5267AXI-LP051 FAQ
1.How can I place an order for CY8C5267AXI-LP051 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C5267AXI-LP051 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 CY8C5267AXI-LP051 reliable?
The price and inventory of CY8C5267AXI-LP051 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C5267AXI-LP051 is usually 5 days.
3.What payment methods are accepted for CY8C5267AXI-LP051?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C5267AXI-LP051 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C5267AXI-LP051?
CY8C5267AXI-LP051 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C5267AXI-LP051 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 CY8C5267AXI-LP051?
For technical support, including CY8C5267AXI-LP051 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C5267AXI-LP051 requirements.
6.How does Aetrix verify that CY8C5267AXI-LP051 is sourced from the original manufacturer or authorized distributors?
All CY8C5267AXI-LP051 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 CY8C5267AXI-LP051 meets industry standards.
7.What is the process for return or replacement of CY8C5267AXI-LP051?
All CY8C5267AXI-LP051 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C5267AXI-LP051, 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 CY8C5267AXI-LP051 part is unused and in its original packaging.
Return procedure for CY8C5267AXI-LP051:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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