QSPI NAND

High Data Throughput with Continuous Read and Robust Performance

The W25N QSPI NAND are designed to offer embedded system designers a winning combination of high performance, and reliability. Featuring a Quad SPI interface, the W25N QSPI NAND achieve data transfer rates of up to 83MB/s via Continuous Read mode. This is significantly faster than competing serial NAND options and enables efficient code shadowing from NAND to DRAM.

Cost and space efficiency

Compared to traditional ONFI NAND, Winbond QSPI NAND comes in smaller, space-saving packages (WSON, BGA), reducing PCB costs and manufacturing complexity.

High speed and robust reliability

• Continuous & Sequential Read for high-speed access
  Access the entire memory array with a single Read instruction. Both modes eliminate latency between page reads, ensuring data output remains synchronized across page and block boundaries.
  
  
• Advanced Continuous Read for enhanced flexibility
  It enhances flexibility with a "Pause and Resume" function to handle interrupts without resetting commands. It also supports a "Flexible Start Address," allowing the SoC to specify the exact starting point rather than being restricted to Byte 0, maximizing data retrieval efficiency.
• Read level setting (Read Retry) for advanced reliability
  Dynamically adjusts read voltage levels to compensate for threshold voltage variations, significantly improving data readability and extending the product's operational lifespan.
• Bad Block Management Lookup Table (BBM LUT) for efficient bad block management
  Hardware-based Bad Block Management (BBM) utilizes a Lookup Table (LUT) to efficiently swap and manage bad blocks, ensuring seamless and continuous data access.

The W25N QSPI NAND provides a reliable solution for storing code, particularly for systems demanding high-speed performance. Delivering fast data transfer rates and robust data integrity, it is an excellent fit for industrial and networking applications and beyond.

Series List