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Infineon Technologies CY8C4245AXQ-483
- Part No.:
- CY8C4245AXQ-483
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C4245AXQ-483.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,966
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Product details
Overview
CY8C4245AXQ-483 from Infineon Technologies (formerly Cypress Semiconductor) is a 32-bit Arm® Cortex®-M0 programmable system-on-chip (PSoC® 4200 family) featuring 48 MHz CPU, 32 kB flash, 4 kB SRAM, 12-bit 1-Msps SAR ADC, two opamps with comparator mode, and capacitive sensing (CapSense® CSD). It integrates programmable analog/digital blocks, two SCBs for I²C/SPI/UART, four TCPWM timers, and supports up to 36 GPIOs in 48-pin TQFP package for embedded control and human interface applications.
For engineers reviewing the CY8C4245AXQ-483 datasheet, CY8C4245AXQ-483 pinout, CY8C4245AXQ-483 application, or CY8C4245AXQ-483 equivalent, key selection criteria include mixed-signal reconfigurability, CapSense® SNR >5:1 with SmartSense™ auto-tuning, Deep Sleep operation at 20 nA, and SWD debug support with flash protection modes (Open/Protected/Kill).
Technical Context
The device implements a single-layer AHB-Lite interconnect between CPU, memory, and peripherals, with dedicated clock gating for low-power operation across five power modes (Active, Sleep, Deep Sleep, Hibernate, Stop). Its analog subsystem includes a CTBm block with two rail-to-rail opamps supporting ADC input buffering, comparator mode, and high-drive external output - all configurable via firmware.
Digital flexibility stems from four Universal Digital Blocks (UDBs), each containing eight macrocells and a data path, enabling user-defined state machines or Verilog-based logic. Serial communication is handled by two independent SCBs, runtime-reconfigurable as I²C master/slave, SPI master/slave, or UART, with automatic hardware flow control and FIFO support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0, 48 MHz max, single-cycle 32-bit multiply - enables deterministic real-time control and Thumb-2 binary compatibility with higher Cortex-M families. |
| Memory | 32 kB flash (with Read Accelerator), 4 kB SRAM - supports firmware storage, bootloader, and runtime variables; flash retains EEPROM-like functionality via emulation. |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - delivers high-resolution sensor acquisition with noise reduction in motor control or environmental monitoring. |
| CapSense® | CapSense Sigma-Delta (CSD) engine with >5:1 SNR and SmartSense™ auto-tuning - enables robust touch buttons/sliders under wet conditions without manual calibration. |
| Power Modes | 20 nA Stop Mode with GPIO wakeup, Deep Sleep with LCD/CapSense active - allows battery-powered devices to achieve multi-year operation on coin cells. |
| Debug Interface | Serial Wire Debug (SWD), 4 breakpoint + 2 watchpoint comparators - provides full on-chip debugging using standard Arm tools without external pods or emulators. |
| GPIO | Up to 36 pins, programmable drive modes (strong/pull-up/pull-down/open-drain), slew rate control - supports mixed-signal routing, LED driving, and level-shifting without external components. |
Pinout & Package
Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | Single 1.71–5.5 V rail powers entire chip; internal regulators distribute voltage to analog/digital domains. |
| VSS | Ground reference | Dedicated analog/digital ground pins minimize coupling noise in mixed-signal operation. |
| P0[0]–P0[7] | Programmable GPIO | Port 0 pins support CapSense, analog input, LCD segment/common, or digital I/O with configurable drive strength. |
| P1[0]–P1[7] | Programmable GPIO | Port 1 includes SWDIO/SWCLK pins; all pins support interrupt-on-change and Deep Sleep wakeup capability. |
| XTAL_IN/XTAL_OUT | Clock oscillator interface | Supports external crystal (1–33 MHz) or ceramic resonator for precise timing; internal IMO provides 48 MHz factory-trimmed clock. |
| XRES | External reset input | Active-low asynchronous reset; internal POR/BOD ensures reliable startup across voltage and temperature ranges. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Two opamps with reconfigurable drive modes, comparator function, and ADC input buffering - eliminates need for external signal conditioning in sensor front-ends. |
| CapSense® CSD Engine | Hardware-accelerated sigma-delta modulation with >5:1 SNR and water tolerance - enables production-ready touch interfaces without shielding or guard traces. |
| UDB-Based Digital Logic | Four universal digital blocks (UDBs), each with 8 macrocells and data path - allows custom PWM generators, encoders, or protocol engines without consuming CPU cycles. |
| Flash Security Modes | Open/Protected/Kill modes with row-level read/write protection - enforces IP protection and prevents unauthorized firmware extraction or partial erase attacks. |
| Low-Power Operation | 20 nA Stop Mode with GPIO wakeup, Deep Sleep with active CapSense/LCD - extends battery life in portable medical, wearables, and IoT endpoints. |
Applications
| Home Appliance Control Panel | Industrial HMI Terminal |
|---|---|
Use Scenario: Touch-enabled oven/microwave control panel exposed to steam, grease, and finger moisture. IC Role / Device Role / Timing Role: PSoC 4200 acts as main controller and capacitive touch processor; uses CSD engine with SmartSense™ for self-calibrating button detection. Use Value: Eliminates mechanical switches and overlay sensors; achieves >5:1 SNR under condensation, reducing false triggers and field returns. | Use Scenario: Ruggedized factory-floor operator terminal with segmented LCD display and pushbutton replacement. IC Role / Device Role / Timing Role: Manages LCD segment driving in Deep Sleep mode while monitoring GPIO interrupts for emergency stop inputs. Use Value: Maintains display visibility during low-power states; wakes instantly on safety-critical inputs without external wake circuitry. |
| Smart Thermostat Node | Medical Patient Monitor Front-End |
Use Scenario: Battery-powered HVAC controller requiring multi-year operation on AA cells with ambient temperature sensing. IC Role / Device Role / Timing Role: Integrates 12-bit SAR ADC for thermistor reading, TCPWM for fan speed control, and CapSense® for proximity wake. Use Value: Achieves 20 nA Stop Mode current with GPIO-triggered wake; reduces BOM count by combining sensing, control, and UI in one die. | Use Scenario: Portable pulse oximeter requiring low-noise analog front-end and optical sensor synchronization. IC Role / Device Role / Timing Role: Configures opamps as transimpedance amplifiers for photodiode signals; uses ADC sequencer with averaging for noise suppression. Use Value: Delivers 12-bit resolution at 1 Msps with hardware-averaged samples - improves SpO₂ accuracy without oversampling firmware overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4247AZI-M485 | Same PSoC 4200 family, 48-pin QFN package, 32 kB flash, but includes USBFS block and lacks CapSense® CSD engine. | Better suited for host-connected peripherals requiring USB enumeration; unsuitable for touch UI designs. | Select when USB device interface is mandatory and capacitive sensing is not required. |
| STM32F072CBT6 | Arm Cortex-M0, 48 MHz, 128 kB flash, 16 kB SRAM, no programmable analog/digital blocks; relies on fixed-function peripherals only. | Requires external components for CapSense® or custom logic; lacks hardware-accelerated sigma-delta modulation. | Choose for cost-sensitive, high-volume applications where analog reconfigurability is unnecessary and flash headroom is critical. |
Compared with CY8C4245AXQ-483, CY8C4247AZI-M485 trades CapSense® for USB connectivity in identical package footprint, while STM32F072CBT6 offers larger memory but no analog/digital programmability - making CY8C4245AXQ-483 optimal for integrated mixed-signal UI and control where hardware flexibility reduces BOM and layout complexity.
Availability
CY8C4245AXQ-483 is available at Aetrix Electronics and suitable for home appliance control panels, industrial HMI terminals, smart thermostat nodes, and medical patient monitor front-ends requiring stable component supply, long-term lifecycle support, and qualified automotive-grade temperature range (–40 °C to +105 °C).
Supply support for CY8C4245AXQ-483 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 global semiconductor leader headquartered in Munich, Germany, delivering power systems, microcontrollers, sensors, and security solutions for industrial, automotive, and IoT markets.
CY8C4245AXQ-483 belongs to the PSoC® 4200 product line - designed specifically for embedded systems requiring integrated analog/digital reconfigurability, ultra-low-power operation, and robust human interface capabilities in space-constrained applications.
FAQ
Does CY8C4245AXQ-483 support USB communication?
No. CY8C4245AXQ-483 does not include a USBFS peripheral block. It supports I²C, SPI, and UART via its two serial communication blocks (SCBs). For USB-capable variants in the same family, consider CY8C4247AZI-M485 or CY8C4248LQI-BL553, both of which integrate USBFS with full device/host capability.
What development tools are required to program and debug this device?
PSoC Creator IDE (free Windows-based tool) is required for schematic-based design, component configuration, and firmware generation. Programming and debugging use the standard Arm Serial Wire Debug (SWD) interface with MiniProg3, KitProg2, or third-party SWD adapters compliant with ARM CMSIS-DAP. No JTAG adapter is needed.
Can the CapSense® functionality operate during Deep Sleep mode?
Yes. The CapSense® CSD engine remains active in Deep Sleep mode with typical current consumption of 15 µA while scanning up to 16 buttons. It supports interrupt-on-touch wakeup to Active mode, enabling instant UI response without continuous CPU polling.
Is flash memory encryption or secure boot supported on this part?
CY8C4245AXQ-483 supports flash protection modes (Open/Protected/Kill) and row-level read/write lock, but lacks hardware AES encryption or dedicated secure boot ROM. Secure boot must be implemented in firmware using SHA-256 signature verification and flash lock enforcement - validated in AN90799 and AN80772 application notes.
CY8C4245AXQ-483 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™ 4 CY8C42xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- 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:
- 32KB (32K 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 1x7b, 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4245AXQ-483 FAQ
1.How can I place an order for CY8C4245AXQ-483 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4245AXQ-483 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 CY8C4245AXQ-483 reliable?
The price and inventory of CY8C4245AXQ-483 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4245AXQ-483 is usually 5 days.
3.What payment methods are accepted for CY8C4245AXQ-483?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4245AXQ-483 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4245AXQ-483?
CY8C4245AXQ-483 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4245AXQ-483 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 CY8C4245AXQ-483?
For technical support, including CY8C4245AXQ-483 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4245AXQ-483 requirements.
6.How does Aetrix verify that CY8C4245AXQ-483 is sourced from the original manufacturer or authorized distributors?
All CY8C4245AXQ-483 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 CY8C4245AXQ-483 meets industry standards.
7.What is the process for return or replacement of CY8C4245AXQ-483?
All CY8C4245AXQ-483 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4245AXQ-483, 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 CY8C4245AXQ-483 part is unused and in its original packaging.
Return procedure for CY8C4245AXQ-483:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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