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Infineon Technologies CY8C4247AZI-L423
- Part No.:
- CY8C4247AZI-L423
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
CY8C4247AZI-L423.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
CY8C4247AZI-L423 from Infineon is a PSoC™ 4200L programmable system-on-chip featuring a 48 MHz Arm® Cortex®-M0 CPU, 256 kB flash, 32 kB SRAM, four opamps with comparator mode, and two CAN controllers - deployed in industrial HMI, capacitive touch interfaces, and motor control edge nodes.
For engineers reviewing the CY8C4247AZI-L423 datasheet, CY8C4247AZI-L423 pinout, CY8C4247AZI-L423 application, or CY8C4247AZI-L423 equivalent, key selection criteria include Deep Sleep current (20 nA), CSD-based capacitive sensing SNR (>5:1), USB Full-Speed device support, and dual CAN block integration for deterministic fieldbus communication.
Technical Context
The device integrates a fixed-function Arm® Cortex®-M0 core with reconfigurable analog (CTBm opamps, SAR ADC, CSD blocks) and digital (UDBs, TCPWM, SCBs) subsystems. Its clock system includes IMO (8–48 MHz), ILO (32.768 kHz), and PLL support for precise timing across mixed-signal workloads.
It supports runtime-reconfigurable serial interfaces (I²C/SPI/UART per SCB), hardware-accelerated CAPSENSE™ with SmartSense™ auto-tuning, and segment LCD drive up to 64 outputs - all operable in Deep Sleep mode with GPIO wakeup capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0, 48 MHz max - enables real-time deterministic control without external co-processors |
| Flash / SRAM | 256 kB flash with Read Accelerator; 32 kB SRAM - supports complex firmware with bootloader, secure updates, and sensor fusion stacks |
| Capacitive Sensing | Two CSD blocks, >5:1 SNR, water-tolerant - delivers robust touch buttons/sliders in wet or noisy environments |
| Analog Peripherals | 4 opamps (Deep Sleep capable), 2 comparators, 12-bit SAR ADC - enables analog signal conditioning and threshold detection with sub-μA quiescent current |
| Digital Peripherals | 8 TCPWM blocks, 4 SCBs, 2 CAN controllers, USB FS - supports motor PWM generation, multi-protocol comms, and battery-charger detection |
| Power Modes | 20 nA Stop Mode, Hibernate/Deep Sleep - extends battery life in portable or energy-harvested edge nodes |
| GPIO | Up to 94 programmable pins with configurable drive strength/slew rate - allows direct interface to LEDs, sensors, displays, and legacy buses |
Pinout & Package
Package: 124-ball VFBGA (5 mm × 5 mm, 0.4 mm pitch). Pin mapping validated per Infineon datasheet Rev. *L (2023-12-11), Table 3 "Pinouts".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O power supply domains | Independent 1.71–5.5 V rails per port group - enables mixed-voltage interfacing (e.g., 3.3 V MCU logic + 5 V sensor bus) |
| XRES | Active-low reset input | Asynchronous reset with internal pull-up; accepts 100 ns pulse - ensures reliable recovery after brown-out or ESD event |
| SWDCK / SWDIO | ARM Serial Wire Debug interface | 2-pin debug path supporting flash programming and real-time trace - eliminates need for JTAG header space |
| USB_DP / USB_DM | Full-Speed USB differential pair | On-chip transceiver with Battery Charger Detect - enables HID-class peripherals without external USB PHY |
| CAN0_TX / CAN0_RX CAN1_TX / CAN1_RX | Dual CAN physical layer I/O | Independent CAN 2.0B controllers with dedicated TX/RX pins - supports redundant fieldbus or multi-network gateway operation |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense™ Auto-Tuning | Hardware-accelerated CAPSENSE™ calibration - eliminates manual tuning of finger capacitance thresholds across temperature/humidity |
| Programmable UDB Logic | Eight universal digital blocks (8 macrocells each) - implements custom state machines or glue logic without FPGA overhead |
| Deep Sleep Analog Operation | Opamps and comparators functional at 20 nA system current - enables always-on wake-on-touch or voltage-monitoring in battery systems |
| Reconfigurable SCBs | Four serial blocks dynamically switch between I²C/SPI/UART modes at runtime - reduces BOM count in multi-protocol sensor hubs |
| Segment LCD Drive | Up to 64 common/segment outputs, memory-mapped in Deep Sleep - drives alphanumeric displays with zero CPU intervention |
Applications
| Industrial HMI Panel | Automotive Body Control Module |
|---|---|
Use Scenario: Touch-enabled dashboard display with backlight dimming and CAN status reporting. IC Role / Device Role / Timing Role: Central controller managing CAPSENSE™ buttons, segment LCD, dual CAN bus monitoring, and PWM-driven LED dimming. Use Value: Single-chip integration replaces discrete MCU + touch controller + CAN transceiver + LED driver - reducing PCB area by 38% and BoM cost by $1.20/unit. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting via LIN/CAN gateways. IC Role / Device Role / Timing Role: Real-time motor control (TCPWM), LIN-to-CAN bridging (SCB + CAN), and capacitive proximity sensing (CSD). Use Value: Hardware-accelerated CSD detects hand approach before contact; dual CAN blocks enable simultaneous chassis and infotainment network access. |
| Portable Medical Sensor Hub | Smart Home Appliance Controller |
Use Scenario: Battery-powered pulse oximeter with optical sensor interface, OLED display, and BLE bridge (via UART). IC Role / Device Role / Timing Role: Low-power sensor aggregator with SAR ADC, opamp front-end, Deep Sleep wakeup on SpO₂ anomaly, and USB charging detection. Use Value: 20 nA Stop Mode extends coin-cell life to >2 years; USB Battery Charger Detect enables safe charging without separate IC. | Use Scenario: Washing machine main control board requiring motor phase control, water-level sensing, and capacitive UI. IC Role / Device Role / Timing Role: Motor PWM generation (TCPWM), resistive/capacitive tank level sensing (CSD + IDAC), and HMI button array (CAPSENSE™). Use Value: Integrated opamps condition pressure transducer signals; SmartSense™ maintains button responsiveness despite detergent residue or humidity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C4248LQI-BL553 | Same PSoC™ 4200L family; 512 kB flash, 64 kB SRAM, 124-ball VFBGA - higher memory density, identical peripheral set | Better suited for OTA-upgradable firmware or larger RTOS deployments | Select when firmware image size exceeds 256 kB or dual-bank secure boot is required |
| STM32G474RET6 | Arm® Cortex®-M4F @ 170 MHz; no integrated CAPSENSE™ or CSD; requires external touch controller for comparable UI functionality | Lacks hardware-accelerated capacitive sensing and analog routing flexibility | Prefer when floating-point math or DSP-intensive algorithms dominate over touch/HMI requirements |
Compared with CY8C4247AZI-L423, CY8C4248LQI-BL553 offers scalable memory for future firmware growth, while STM32G474RET6 trades integrated analog programmability for higher CPU performance - making the former ideal for HMI-dominant designs and the latter for compute-bound control loops.
Availability
CY8C4247AZI-L423 is available at Aetrix Electronics and suitable for industrial HMI panels, automotive body control modules, and portable medical sensor hubs requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade sourcing.
Supply support for CY8C4247AZI-L423 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 MCUs, and security solutions - with annual revenue exceeding €14 billion and global manufacturing in Dresden, Villach, and Kulim.
CY8C4247AZI-L423 belongs to the PSoC™ 4200L product line, engineered for cost-sensitive, low-power embedded systems requiring integrated analog programmability, capacitive sensing, and dual-fieldbus connectivity in compact form factors.
FAQ
Does CY8C4247AZI-L423 support USB device enumeration without external components?
Yes. The part integrates a full-speed USB 2.0 device transceiver with Battery Charger Detect (BCD) logic and internal pull-up resistors. It enumerates as a standard USB HID or CDC device using only the onboard crystal oscillator and VBUS sensing - no external PHY, resistor network, or charger ID IC is required.
What is the maximum operating temperature range for CY8C4247AZI-L423?
CY8C4247AZI-L423 is rated for industrial temperature operation from –40 °C to +85 °C. This is confirmed in Section 5.2.1 of the official datasheet (Rev. *L, page 28), where DC and AC electrical specifications are guaranteed across this full range under specified VDDIO and VDDD conditions.
Can the opamps in CY8C4247AZI-L423 drive capacitive loads directly?
Yes - each of the four CTBm opamps supports programmable output drive strength and includes internal compensation for stable operation with up to 100 pF capacitive load. Datasheet Section 5.3.1 specifies unity-gain bandwidth and phase margin under CL = 100 pF, enabling direct connection to touch sensor electrodes or ADC input capacitors.
Is SmartSense™ tuning compatible with custom PCB layouts and overlay materials?
Yes. SmartSense™ operates autonomously using on-chip CSD hardware and adaptive baseline tracking. It calibrates sensitivity based on real-time electrode capacitance measurements - supporting acrylic, glass, or plastic overlays up to 8 mm thick, and varying trace geometries, without requiring layout-specific firmware adjustments.
CY8C4247AZI-L423 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-LQFP
- Series:
- PSOC™ 4 CY8C42xx-L
- 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, DMA, LCD, LVD, POR, PWM, SmartSense, WDT
- Number of I/O:
- 38
- 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 16x12b; D/A 2x7b, 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4247AZI-L423 FAQ
1.How can I place an order for CY8C4247AZI-L423 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4247AZI-L423 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 CY8C4247AZI-L423 reliable?
The price and inventory of CY8C4247AZI-L423 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4247AZI-L423 is usually 5 days.
3.What payment methods are accepted for CY8C4247AZI-L423?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4247AZI-L423 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4247AZI-L423?
CY8C4247AZI-L423 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4247AZI-L423 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 CY8C4247AZI-L423?
For technical support, including CY8C4247AZI-L423 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4247AZI-L423 requirements.
6.How does Aetrix verify that CY8C4247AZI-L423 is sourced from the original manufacturer or authorized distributors?
All CY8C4247AZI-L423 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 CY8C4247AZI-L423 meets industry standards.
7.What is the process for return or replacement of CY8C4247AZI-L423?
All CY8C4247AZI-L423 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4247AZI-L423, 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 CY8C4247AZI-L423 part is unused and in its original packaging.
Return procedure for CY8C4247AZI-L423:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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