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Infineon Technologies CY8C4247LWS-M484
- Part No.:
- CY8C4247LWS-M484
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CY8C4247LWS-M484.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 56VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,598
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Product details
Overview
CY8C4247LWS-M484 from Infineon is a PSoC 4200 series ARM Cortex-M0+ microcontroller with 256 KB flash, 32 KB SRAM, and integrated CapSense capacitive sensing capability. It operates at up to 48 MHz, supports USB 2.0 Full-Speed device interface, and includes programmable analog and digital blocks for mixed-signal system-on-chip design. Used in human-machine interface (HMI) modules requiring touch control and low-power operation.
For engineers reviewing the CY8C4247LWS-M484 datasheet, CY8C4247LWS-M484 pinout, CY8C4247LWS-M484 application, or CY8C4247LWS-M484 equivalent, key considerations include CapSense channel count, USB PHY integration, flash endurance rating, and configurable I/O drive strength for industrial HMI designs.
Technical Context
This MCU integrates a single-cycle ARM Cortex-M0+ core with nested vectored interrupt controller (NVIC), 24-bit SysTick timer, and debug support via SWD. Its programmable analog block includes two 12-bit SAR ADCs with up to 1 Msps sampling rate and configurable op-amps.
The digital system features UDB-based programmable logic (PLD), multiple TCPWM blocks supporting PWM, capture, and quadrature decoding, and a dedicated USBFS block with internal transceiver and endpoint buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M0+, 48 MHz max - enables real-time deterministic control with low latency interrupt response. |
| Flash / SRAM | 256 KB / 32 KB - supports complex firmware with bootloader, CapSense tuning, and USB stack without external memory. |
| CapSense Channels | Up to 64 - allows multi-touch slider, proximity, and button arrays in single-chip HMI solutions. |
| USB Interface | USB 2.0 Full-Speed device only - provides HID-class enumeration for plug-and-play host communication without external PHY. |
| ADC | Dual 12-bit SAR, 1 Msps total - enables simultaneous analog sensor monitoring and battery voltage measurement. |
| I/O Pins | 48 GPIO with 25 mA drive - supports direct LED driving, resistive touch, and industrial-level noise immunity. |
Pinout & Package
Package: 68-pin QFN (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed pad for improved power dissipation in continuous CapSense operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VDDD | Analog & digital supply | Separate 1.71–5.5 V rails enable noise isolation between analog sensing and digital logic domains. |
| P0[0]–P0[7] | General-purpose I/O | Support CapSense CSD mode with dedicated shield and sense routing; configurable as high-drive outputs. |
| USBDP / USBDM | USB differential pair | Integrated full-speed transceiver eliminates need for external USB PHY or termination resistors. |
| XTAL_IN / XTAL_OUT | External crystal oscillator | Supports 1–33 MHz crystals for precise timing; internal PLL generates 48 MHz system clock. |
| SWDCLK / SWDIO | Debug interface | Two-pin Serial Wire Debug enables programming and real-time trace without JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Configurable op-amps, comparators, and 12-bit DACs allow sensor signal conditioning without external components. |
| TCPWM Blocks | Eight independent timers/counters support motor control PWM, encoder input, and precision pulse generation. |
| CapSense CSD/CSX | Hardware-accelerated capacitive sensing engine delivers <10 µs scan time per electrode with built-in noise rejection. |
| Low-Power Modes | Deep-sleep current <1.3 µA with RTC active - extends battery life in portable touch interfaces. |
Applications
| Smart Home Control Panel | Industrial HMI Terminal |
|---|---|
Use Scenario: Wall-mounted touch panel with slider, buttons, and status LEDs for HVAC and lighting control. IC Role / Device Role / Timing Role: Main controller executing CapSense scanning, USB HID reporting, and LED PWM dimming. Use Value: Single-chip integration reduces BOM count by eliminating separate touch controller and USB interface IC. | Use Scenario: Ruggedized operator interface in factory automation with ESD-hardened touch overlay. IC Role / Device Role / Timing Role: Real-time HMI processor handling button debouncing, analog sensor readout, and Modbus RTU over UART. Use Value: Programmable I/O drive strength (up to 25 mA) ensures reliable operation under industrial EMI conditions. |
| Medical Device Keypad | Consumer Appliance Interface |
Use Scenario: Touch-sensitive front panel on infusion pump with proximity wake-up and glove-mode support. IC Role / Device Role / Timing Role: CapSense controller with adaptive thresholding and low-power deep-sleep wake-on-touch. Use Value: Hardware-based noise immunity meets IEC 60601-1 ESD requirements without firmware compensation. | Use Scenario: Microwave oven control with rotary encoder emulation and multi-function touch keys. IC Role / Device Role / Timing Role: Mixed-signal SoC managing CapSense, display backlight PWM, and appliance safety interlocks. Use Value: Dual 12-bit SAR ADCs enable simultaneous temperature monitoring and line voltage sensing for safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4248LQI-M482 | 68-pin QFN package, same core and CapSense, but 512 KB flash and no USBFS block. | Suitable for non-USB HMI with larger firmware footprint and higher code security needs. | Select when USB connectivity is unnecessary and extended flash is required for field-upgradable firmware. |
| STM32F072CBT6 | ARM Cortex-M0, 128 KB flash, 16 KB SRAM, USB 2.0 FS device, no integrated CapSense hardware. | Requires external capacitive sensing IC or software-based touch algorithm with higher CPU load. | Choose when leveraging STM32 ecosystem tools and external touch solution is acceptable for cost-sensitive designs. |
Compared with CY8C4247LWS-M484, CY8C4248LQI-M482 trades USB integration for double flash capacity, while STM32F072CBT6 offers broader toolchain support but lacks hardware-accelerated CapSense-impacting touch responsiveness and power efficiency in HMI applications.
Availability
CY8C4247LWS-M484 is available at Aetrix Electronics and suitable for smart home control panels, industrial HMI terminals, and medical device keypads requiring stable component supply and long-term production support.
Supply support for CY8C4247LWS-M484 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and embedded security solutions.
The PSoC 4200 series targets cost-sensitive, low-power mixed-signal applications where programmable analog/digital blocks replace discrete components in HMI, IoT edge nodes, and industrial controls.
FAQ
Does CY8C4247LWS-M484 support USB host functionality?
No. The device implements only USB 2.0 Full-Speed device mode with an integrated transceiver. It cannot act as a USB host or support USB On-The-Go. Host capability requires external USB host controller IC or migration to PSoC 6 series devices with dual-role USB support.
What is the maximum operating temperature for continuous CapSense operation?
The CY8C4247LWS-M484 is rated for industrial temperature range (–40°C to +85°C). Continuous CapSense operation at 85°C is validated per Infineon's thermal characterization data, with no degradation in baseline tracking or signal-to-noise ratio when using recommended PCB layout and thermal pad soldering.
Can the internal op-amps be used for sensor signal conditioning?
Yes. The device includes four programmable op-amps with rail-to-rail input/output, gain settings from 1× to 32×, and configurable bandwidth. They are qualified for use with bridge sensors, thermistors, and current-sense amplifiers, with typical input offset voltage of ±1.5 mV and drift of 1.5 µV/°C.
Is there hardware support for AES encryption in this part?
No. CY8C4247LWS-M484 does not include a dedicated hardware AES accelerator. Cryptographic operations must be implemented in firmware using standard libraries. For hardware AES, consider PSoC 4100S or PSoC 6 series devices with TRNG and cryptographic co-processors.
CY8C4247LWS-M484 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-VFQFN Exposed Pad
- Series:
- PSOC™ 4 CY8C42xx - M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, Cap Sense, LCD, LVD, POR, PWM, SmartSense, WDT
- Number of I/O:
- 46
- 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 24x12b SAR; D/A 4x7/8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
CY8C4247LWS-M484 FAQ
1.How can I place an order for CY8C4247LWS-M484 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4247LWS-M484 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 CY8C4247LWS-M484 reliable?
The price and inventory of CY8C4247LWS-M484 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4247LWS-M484 is usually 5 days.
3.What payment methods are accepted for CY8C4247LWS-M484?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4247LWS-M484 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4247LWS-M484?
CY8C4247LWS-M484 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4247LWS-M484 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 CY8C4247LWS-M484?
For technical support, including CY8C4247LWS-M484 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4247LWS-M484 requirements.
6.How does Aetrix verify that CY8C4247LWS-M484 is sourced from the original manufacturer or authorized distributors?
All CY8C4247LWS-M484 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 CY8C4247LWS-M484 meets industry standards.
7.What is the process for return or replacement of CY8C4247LWS-M484?
All CY8C4247LWS-M484 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4247LWS-M484, 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 CY8C4247LWS-M484 part is unused and in its original packaging.
Return procedure for CY8C4247LWS-M484:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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