Infineon Technologies CY8C4247AZS-M485
- Part No.:
- CY8C4247AZS-M485
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4247AZS-M485.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,769
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Product details
Overview
CY8C4247AZS-M485 from Infineon is a PSoC 4200 series programmable system-on-chip integrating ARM Cortex-M0+ CPU, 256 KB flash, 32 KB SRAM, CapSense capacitive sensing, and configurable analog/digital peripherals. It operates at up to 48 MHz, supports USB 2.0 full-speed device interface, and targets human interface and embedded control applications.
For engineers reviewing the CY8C4247AZS-M485 datasheet, CY8C4247AZS-M485 pinout, CY8C4247AZS-M485 application, or CY8C4247AZS-M485 equivalent, key selection factors include CapSense channel count, USB PHY integration, flash retention specification, and QFN-68 package thermal performance in space-constrained industrial HMI designs.
Technical Context
This device implements a single-core ARM Cortex-M0+ processor with 32-bit architecture and Thumb-2 instruction set. It includes a dedicated CapSense CSD v3.0 block supporting up to 64 self- or mutual-capacitance sensors, and a USB 2.0 full-speed transceiver with integrated PHY and endpoint buffers.
The analog subsystem comprises two 12-bit SAR ADCs (1 Msps), four 8-bit DACs, two programmable gain amplifiers (PGA), and two comparators. Digital resources include four UDB-based programmable logic blocks, each supporting state machines, counters, and custom logic functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+, 48 MHz max clock - enables deterministic real-time control with low interrupt latency. |
| Flash Memory | 256 KB - sufficient for complex firmware including USB stack, CapSense tuning, and application logic. |
| SRAM | 32 KB - supports multiple concurrent tasks, USB buffer management, and sensor data buffering. |
| CapSense Channels | Up to 64 - allows multi-touch sliders, proximity detection, and robust button arrays without external ICs. |
| USB Interface | Full-speed (12 Mbps) with integrated PHY - eliminates need for external transceiver and reduces BOM cost. |
| Package | 68-pin QFN (10 mm × 10 mm, 0.5 mm pitch) - provides thermal efficiency and routing density for compact HMI PCBs. |
Pinout & Package
The CY8C4247AZS-M485 is housed in a 68-pin QFN package with exposed thermal pad, designed for reflow soldering and thermal dissipation in continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 1.71–5.5 V input; powers digital logic, analog blocks, and CapSense modulator. |
| VSS | Digital ground | Reference return for all digital circuits and USB transceiver common-mode voltage. |
| USB_DP / USB_DM | USB differential pair | Direct connection to USB connector; requires 90 Ω differential impedance routing. |
| P0[0]–P0[7] | General-purpose I/O | Support CapSense, UART, SPI, I²C, and high-drive (25 mA) output modes. |
| XTAL_IN / XTAL_OUT | Crystal oscillator terminals | Drive external 4–24 MHz crystal for precise timing; internal PLL supports USB clock derivation. |
Key Features
| Feature | Design Value |
|---|---|
| CapSense CSD v3.0 | Enables noise-immune touch buttons, sliders, and proximity wake-up with <1 µA sleep current. |
| Programmable Analog Blocks | Configurable as op-amps, filters, or sensor signal conditioners without external components. |
| UDB Logic Resources | Four Universal Digital Blocks allow custom PWM generators, encoders, or protocol engines in hardware. |
| USB Full-Speed Device | Integrated PHY and descriptors reduce firmware overhead and eliminate external USB transceiver. |
Applications
| Industrial HMI Panels | Medical Device Interfaces |
|---|---|
Use Scenario: Touch-enabled control panel on programmable logic controller (PLC) front-end with ESD-hardened surface. IC Role / Device Role / Timing Role: Main controller executing CapSense scanning, USB HID reporting, and real-time I/O monitoring. Use Value: Single-chip integration reduces component count by 30% versus discrete MCU + touch controller + USB PHY solution. | Use Scenario: Patient monitor with capacitive touch keys and USB data export to clinical workstation. IC Role / Device Role / Timing Role: Host controller managing touch response, alarm signaling, and USB CDC communication. Use Value: Meets IEC 60601-1 leakage current limits via low-power sleep states and isolated USB signaling. |
| Smart Home Control Hub | Automotive Cabin Controls |
Use Scenario: Wall-mounted thermostat with slider-based temperature adjustment and Wi-Fi module communication. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ambient light, temperature, and touch inputs before forwarding to wireless SoC. Use Value: CapSense immunity to moisture and glove operation ensures reliable UI in humid environments. | Use Scenario: Center console touchpad for infotainment system with haptic feedback coordination. IC Role / Device Role / Timing Role: Dedicated touch controller interfacing with main infotainment MCU via SPI. Use Value: Supports AEC-Q100 Grade 2 qualification when used with qualified external components and layout practices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4248LQI-BL553 | Same core and CapSense engine but adds BLE 5.0 radio and uses QFN-80 package. | Requires Bluetooth connectivity; larger footprint and higher RF layout complexity. | Select when wireless telemetry or OTA updates are mandatory and board area permits larger package. |
| STM32F411RE | ARM Cortex-M4, no integrated CapSense or USB PHY; requires external touch controller and USB transceiver. | Higher BOM cost and design effort for touch/USB; superior floating-point performance for algorithm-heavy tasks. | Select when DSP-intensive computation dominates over integrated peripheral consolidation. |
Compared with CY8C4248LQI-BL553, this part avoids RF certification overhead and saves board space; compared with STM32F411RE, it delivers lower total system cost and faster time-to-market for touch-centric designs without needing floating-point math.
Availability
CY8C4247AZS-M485 is available at Aetrix Electronics and suitable for industrial HMI panels, medical device interfaces, and smart home control hubs requiring stable component supply across multi-year production cycles.
Supply support for CY8C4247AZS-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 AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and security solutions.
This part belongs to the PSoC 4 family, engineered to unify programmable analog and digital logic with an ARM core for rapid development of intelligent, sensor-rich embedded systems.
FAQ
Does CY8C4247AZS-M485 support USB host mode?
No. This device implements only USB 2.0 full-speed device functionality with integrated PHY. It cannot act as a USB host or support USB On-The-Go. External USB host capability requires pairing with a dedicated host controller or using a dual-role SoC such as CY7C68013A.
What is the maximum operating temperature for continuous use?
The CY8C4247AZS-M485 is rated for industrial temperature range: –40 °C to +85 °C ambient. Thermal performance depends on PCB copper area under the exposed pad and airflow; typical junction temperature rise is ≤25 °C above ambient at 100 mA total supply current.
Can CapSense operate through 5 mm thick glass?
Yes, with proper electrode design and firmware tuning. The CSD v3.0 engine supports shielded electrodes and adaptive baseline tracking, enabling reliable detection through up to 6 mm acrylic or 4 mm tempered glass. Performance depends on electrode size, spacing, and overlay dielectric constant.
Is there hardware support for AES encryption?
No. This PSoC 4200 variant does not include a dedicated hardware AES accelerator. Cryptographic operations must be implemented in software using the Cortex-M0+ core, with optional use of TRNG for key generation. For hardware-accelerated crypto, consider PSoC 6 devices like CY8C6247FDI-D52.
CY8C4247AZS-M485 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- 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:
- 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 12b SAR; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4247AZS-M485 FAQ
1.How can I place an order for CY8C4247AZS-M485 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4247AZS-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 CY8C4247AZS-M485 reliable?
The price and inventory of CY8C4247AZS-M485 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4247AZS-M485 is usually 5 days.
3.What payment methods are accepted for CY8C4247AZS-M485?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4247AZS-M485 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4247AZS-M485?
CY8C4247AZS-M485 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4247AZS-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 CY8C4247AZS-M485?
For technical support, including CY8C4247AZS-M485 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4247AZS-M485 requirements.
6.How does Aetrix verify that CY8C4247AZS-M485 is sourced from the original manufacturer or authorized distributors?
All CY8C4247AZS-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 CY8C4247AZS-M485 meets industry standards.
7.What is the process for return or replacement of CY8C4247AZS-M485?
All CY8C4247AZS-M485 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4247AZS-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 CY8C4247AZS-M485 part is unused and in its original packaging.
Return procedure for CY8C4247AZS-M485:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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