■ Cost and space efficiency

It employs small packages (WSON8, BGA24), reducing PCB costs and manufacturing complexity.

■ High speed and robust reliability

　- Continuous and sequential readout for high-speed access

　
The entire memory cell array can be accessed by executing a read command just once.

Both modes eliminate latency caused by data transfer from the memory cell array to the data buffer, maintaining synchronized data output across page and block boundaries.
　

• Advanced continuous readout for increased flexibility

The "pause/resume" function, which handles interrupts without resetting commands, provides greater flexibility.

Furthermore, it supports "flexible starting addresses," allowing you to specify any address without being restricted by the starting address, thus maximizing data acquisition efficiency.
　

　
To compensate for fluctuations in the memory cell threshold voltage, the read voltage level is dynamically adjusted.

This significantly improves the likelihood of data being read correctly and extends the product's operating life.

　
Hardware-based bad block management lookup tables (BBM LUTs) streamline the replacement and management of bad blocks and ensure seamless and continuous data access.
　

The W25N QSPI NAND flash provides a reliable solution for code storage, especially for systems requiring high-speed performance.
It offers high-speed data transfer rates and robust data integrity, making it ideal for a wide range of applications, including industrial applications.

The advantages of using Winbond serial NAND

NAND flash memory requires the detection and correction of errors occurring in the memory area, management of memory blocks containing errors, and processing to redistribute data to healthy areas when errors occur.

Winbond's serial NAND family includes ECC (Error Correction Code) and bad block management functions, which reduce the controller load during these processes.

Furthermore, in typical systems, the code stored in flash memory is transferred to DRAM and executed by the processor, so the transfer speed from flash memory to DRAM is also important.

Winbond's "Continuous Read" feature enables high-speed data transfer from NAND flash memory to DRAM, reducing the time required for code transfer.

1.8V QSPI NAND Flash

3V QSPI NAND Flash

Update Notice

2026/08/18 Some lineup and wording have been corrected.