CYWB0224ABM-BVXI

Controllers Overview

The CYWB0224ABM-BVXI is a West Bridge Astoria USB and Mass Storage Peripheral Controller manufactured by Cypress Semiconductor. It features N-Xpress NAND controller technology supporting up to 16 interleaved NANDs with 8 chip enables for x8 or x16 SLC/MLC devices. The component includes 4-bit ECC, bad block management, and static wear leveling. It supports high-speed USB at 480 Mbps compliant with USB 2.0 standards, featuring an integrated transceiver and switch. The device utilizes SLIM architecture for simultaneous independent data paths between the processor, USB, and mass storage. It offers flexible processor interfaces including multiplexing/nonmultiplexing address/data, SRAM, pseudo CRAM, pseudo NAND, and SPI slave modes. Power consumption is optimized with ultra-low power 1.8V core operation.

Controllers Feature Summary

• SLIM architecture enabling simultaneous independent data paths between processor, USB, and mass storage
• N-Xpress NAND controller technology managing up to 16 NANDs with 8 chip enables
• Integrated USB 2.0 transceiver and switch supporting 480 Mbps High Speed USB
• Flexible processor interface supporting multiple modes including SRAM, pseudo CRAM, and SPI slave

Controllers Applications

• Cellular Phones
• Portable Media Players
• Personal Digital Assistants
• Portable Navigation Devices
• Digital Cameras

Controllers Procurement Notes

Verify the specific ordering suffix BVXI corresponds to the 100 VFBGA package type and lead-free status as documented in the official Cypress datasheet. Confirm that the ABM variant designation aligns with the required support for both SLC and MLC NAND Flash devices rather than SLC-only configurations found in ABS variants. Ensure clock input frequency requirements match the supported options of 19.2 MHz, 24 MHz, 26 MHz, and 48 MHz specified in the product documentation.

Controllers Selection Notes

Select this component when simultaneous access to mass storage and USB connectivity is required without disturbing main processor functions. Choose the ABM variant over ABS if MLC NAND Flash support is necessary alongside SLC capabilities. Consider the 100 VFBGA package dimensions for PCB layout constraints. Evaluate the flexible processor interface options to ensure compatibility with the target system's memory mapping and bus protocols.

Controllers Part Context

This part belongs to the West Bridge Astoria family from Cypress Semiconductor, now part of Infineon Technologies. The series includes variants like CYWB0224ABS and CYWB0226ABM, differing primarily in NAND support types and USB switch integration. The Astoria line was designed to bridge host processors with various multimedia storage interfaces efficiently.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Cross-model comparisons within the Astoria family suggest checking CYWB0224ABS-BVXI for SLC-only applications or CYWB0226ABM-BVXI if USB switch integration is required instead of external PHY interfacing.

Controllers FAQ

What is the maximum number of NAND chips that can be interleaved?

The device supports interleave of up to 16 NANDs with 8 chip enables (CE#).

Does the CYWB0224ABM support MLC NAND Flash?

Yes, the ABM variant supports both SLC and MLC NAND Flash devices, whereas the ABS variant supports SLC only.

What clock input frequencies are selectable?

The device supports selectable clock input frequencies of 19.2 MHz, 24 MHz, 26 MHz, and 48 MHz.