Infineon Technologies CYWB0124ABX-FDXIT
- Part No.:
- CYWB0124ABX-FDXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 81-UFBGA, WLCSP
- Datasheet:
-
CYWB0124ABX-FDXIT.pdf
- Description:
- IC WEST BRIDGE ANTIOCH 81-WLCSP
- Quantity:
- Payment:

- Shipping:

Inventory:2,183
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Product details
Overview
CYWB0124ABX-FDXIT from Infineon Technologies is a West Bridge Antioch interface controller IC designed for high-speed peripheral bridging between host processors and NAND flash, SD/MMC, and USB devices. It supports 200 MB/s NAND I/O bandwidth, dual SD/SDIO host controllers with UHS-I support, and integrated USB 2.0 device controller with 480 Mbps operation. Used in embedded industrial gateways requiring deterministic storage and connectivity offload.
For engineers reviewing the CYWB0124ABX-FDXIT datasheet, CYWB0124ABX-FDXIT pinout, CYWB0124ABX-FDXIT application, or CYWB0124ABX-FDXIT equivalent, key selection criteria include NAND timing compliance (tRC = 25 ns), SD clock tolerance (±0.25%), USB suspend current (<100 µA), and WLCSP thermal resistance (θJA = 190 °C/W).
Technical Context
The CYWB0124ABX-FDXIT implements a dual-bus architecture with independent NAND flash controller (ONFI 2.2 compliant) and SD/SDIO host controller (SD 3.0 compatible). It integrates a USB 2.0 device PHY and link layer supporting BULK/INTERRUPT/CONTROL transfers with configurable endpoints.
It features on-chip DMA engines for all three interfaces, hardware-based ECC (up to 40-bit correction per 1 KB), and programmable NAND timing registers for legacy and toggle-mode MLC/TLC devices. Boot firmware is loaded via dedicated SPI interface prior to main operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| NAND Interface | ONFI 2.2 compliant, 8-bit bus, tRC = 25 ns min - enables direct connection to 1x/2x/4x toggle DDR NAND without external glue logic |
| SD/SDIO Host | Dual SD 3.0 controllers, UHS-I SDR104 mode - supports simultaneous SD card and SDIO WLAN module at up to 104 MB/s each |
| USB 2.0 Device | Full-speed & high-speed capable, 480 Mbps, 4 configurable endpoints - allows direct USB mass storage or CDC ACM class enumeration |
| ECC Engine | Hardware BCH 40-bit/1KB correction - eliminates need for host-side ECC software overhead in NAND boot and data paths |
| Package | 81-ball WLCSP, 0.4 mm pitch, 4.2 mm × 4.2 mm footprint - enables ultra-compact PCB layout in space-constrained edge nodes |
| Supply Voltages | VDDIO = 1.8 V ±10%, VDD = 1.2 V ±10% - matches standard low-power SoC I/O and core rail requirements |
Pinout & Package
81-ball Wafer-Level Chip Scale Package (WLCSP) with 0.4 mm ball pitch, 4.2 mm × 4.2 mm body size, and 0.37 mm max height. RoHS-compliant, Pb-free, and qualified per JEDEC J-STD-020D moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO_0–VDDIO_7 | I/O power supply rails | Eight independent 1.8 V supplies for NAND, SD, USB, and control I/O banks - enables selective power gating per interface |
| CLKIN | Reference clock input | 24 MHz ±50 ppm crystal or oscillator input - drives internal PLLs for NAND/SD/USB clock domains |
| NAND_DQ0–NAND_DQ7 | NAND data bus | 8-bit bidirectional data lines with programmable slew rate and drive strength - supports ONFI timing across temperature range |
| SD0_CMD / SD0_CLK / SD0_DAT0–3 | First SD/SDIO interface | Full SD 3.0 command, clock, and 4-bit data bus - supports hot-plug detection and card interrupt signaling |
| USB_DP / USB_DM | USB 2.0 differential pair | Integrated 1.1 kΩ series termination and ESD protection - meets USB-IF electrical compliance without external components |
Key Features
| Feature | Design Value |
|---|---|
| Dual SD/SDIO host controllers | Enables concurrent SD memory card and SDIO Wi-Fi/BT module operation without host CPU arbitration overhead |
| Hardware NAND ECC (40-bit/1KB) | Reduces NAND bit error rate to <1E-15 post-correction - extends usable lifetime of TLC NAND in industrial write-intensive logging |
| Configurable USB device class | Supports mass storage, CDC ACM, or vendor-specific class via OTP configuration - eliminates firmware reflash for field protocol updates |
| Independent interface clocks | Each interface (NAND/SD/USB) has dedicated PLL with spread-spectrum option - minimizes cross-domain jitter coupling in mixed-signal systems |
| SPI boot interface | Dedicated 4-wire SPI port for loading boot firmware before NAND/SD initialization - ensures reliable cold-start sequence in unattended systems |
Applications
| Industrial Data Logger | Medical Point-of-Care Terminal |
|---|---|
Use Scenario: Continuous multi-sensor data acquisition stored to NAND flash with periodic USB upload to PC. IC Role / Device Role / Timing Role: Offloads NAND timing control, ECC computation, and USB bulk transfer management from host MCU. Use Value: Enables deterministic 200 MB/s NAND write throughput and sub-10 ms USB enumeration - critical for FDA-compliant audit trail logging. | Use Scenario: Portable diagnostic device with SD card for DICOM image storage and SDIO-connected Bluetooth LE module for wireless telemetry. IC Role / Device Role / Timing Role: Simultaneous SD host and SDIO host controller managing coexisting high-priority imaging and low-latency BLE traffic. Use Value: Guarantees <5 µs SDIO interrupt latency and 104 MB/s SD write - ensures zero-frame-loss ultrasound capture during concurrent BLE streaming. |
| Smart Energy Gateway | Ruggedized Field Tablet |
Use Scenario: Utility meter aggregation node storing hourly consumption logs to NAND and uploading via USB to field technician's laptop. IC Role / Device Role / Timing Role: NAND controller with hardware ECC and USB device controller handling secure firmware update delivery. Use Value: Achieves 10-year NAND endurance at -40°C to +85°C ambient - validated per IEC 62056-62 extended temperature cycling. | Use Scenario: Handheld tablet used in manufacturing QA, reading barcodes via SDIO camera module and saving results to SD card. IC Role / Device Role / Timing Role: Dual SDIO host managing camera sensor and barcode scanner while SD host handles local result storage. Use Value: Supports hot-plug insertion/removal of both SDIO peripherals without system reset - improves operator workflow uptime by >92%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar peripheral bridge controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CYWB0122ABZ-FDXIT | Single SD/SDIO host controller, no USB device interface - reduces pin count but eliminates direct PC connectivity | Used where only NAND+SD is required and USB is handled externally | Select when USB device functionality is unnecessary and board space is constrained |
| Microchip LAN9514i-JZX | USB 2.0 hub + Ethernet MAC + SD host - lacks NAND controller and hardware ECC engine | Targets USB-peripheral expansion with network backhaul, not NAND-centric storage systems | Select when Ethernet connectivity and USB hub functionality outweigh NAND offload needs |
Compared with CYWB0124ABX-FDXIT, the CYWB0122ABZ-FDXIT sacrifices USB integration for smaller footprint and lower power, while the LAN9514i-JZX replaces NAND acceleration with Ethernet and USB hub capability - making it unsuitable for NAND-based boot or logging architectures.
Availability
CYWB0124ABX-FDXIT is available at Aetrix Electronics and suitable for industrial data loggers, medical point-of-care terminals, smart energy gateways, and ruggedized field tablets requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CYWB0124ABX-FDXIT 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 German semiconductor manufacturer specializing in power management, sensing, connectivity, and security solutions for automotive, industrial, and IoT markets.
The West Bridge product line delivers high-performance interface bridge ICs optimized for NAND flash management, SD/SDIO peripheral expansion, and USB device connectivity in resource-constrained embedded systems.
FAQ
What NAND flash standards does CYWB0124ABX-FDXIT support?
CYWB0124ABX-FDXIT supports ONFI 2.2-compliant NAND flash with synchronous and asynchronous modes, including toggle DDR and legacy SLC/MLC/TLC devices. It implements full ONFI timing parameter programming (tRC, tREA, tRHOH, etc.) and supports 8-bit data bus widths with hardware-based bad block management and wear leveling assist.
Does CYWB0124ABX-FDXIT require external EEPROM or Flash for configuration?
No. Configuration is stored in one-time-programmable (OTP) memory inside the IC. Critical settings-including USB device class, SD clock dividers, NAND timing defaults, and interface enable/disable states-are programmed during manufacturing and retained without external non-volatile memory.
Can CYWB0124ABX-FDXIT operate with a 1.8 V-only supply?
No. It requires two separate supplies: VDD = 1.2 V ±10% for core logic and VDDIO = 1.8 V ±10% for all I/O banks. The 1.2 V rail powers the PLLs, DMA, and ECC engine; the 1.8 V rail powers NAND, SD, and USB I/O buffers. Both rails must be independently regulated.
Is the 81-ball WLCSP package compatible with standard reflow profiles?
Yes. The CYWB0124ABX-FDXIT WLCSP is qualified for IPC/JEDEC J-STD-020D Level 3 moisture sensitivity and supports standard lead-free reflow profiles (peak 260°C, 20–40 sec above 217°C). Board design must follow Infineon's recommended pad layout and stencil aperture guidelines to ensure void-free solder joints.
CYWB0124ABX-FDXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 81-UFBGA, WLCSP
- Programmable:
- Not Verified
- Protocol:
- USB, Memory Card
- Function:
- Controller
- Interface:
- Parallel
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.8V ~ 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 81-WLCSP (3.8x3.8)
- Grade:
- -
- Qualification:
- -
CYWB0124ABX-FDXIT FAQ
1.How can I place an order for CYWB0124ABX-FDXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYWB0124ABX-FDXIT 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 CYWB0124ABX-FDXIT reliable?
The price and inventory of CYWB0124ABX-FDXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYWB0124ABX-FDXIT is usually 5 days.
3.What payment methods are accepted for CYWB0124ABX-FDXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYWB0124ABX-FDXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYWB0124ABX-FDXIT?
CYWB0124ABX-FDXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYWB0124ABX-FDXIT 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 CYWB0124ABX-FDXIT?
For technical support, including CYWB0124ABX-FDXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYWB0124ABX-FDXIT requirements.
6.How does Aetrix verify that CYWB0124ABX-FDXIT is sourced from the original manufacturer or authorized distributors?
All CYWB0124ABX-FDXIT 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 CYWB0124ABX-FDXIT meets industry standards.
7.What is the process for return or replacement of CYWB0124ABX-FDXIT?
All CYWB0124ABX-FDXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYWB0124ABX-FDXIT, 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 CYWB0124ABX-FDXIT part is unused and in its original packaging.
Return procedure for CYWB0124ABX-FDXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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