pseudo-slc · shipping · also pSLC, SLC mode

Pseudo-SLC (pSLC)

Operation of multi-bit-capable NAND in one-bit-per-cell mode, trading storage density for single-bit behavior.

Related Observatory article: Pseudo-SLC (pSLC) on hesela.com

This operating mode is not proof of native SLC media. Swissbit's 2020 EN-26 announcement specifies a full pSLC configuration, rather than only a transient write cache. The mode and the cache role are different concepts. Endurance and retention still require product-specific evidence. [1] [2]

Relations

related

slc, slc-cache, mlc, tlc, qlc

Advantages

• Allows supported multi-bit NAND to use single-bit programming. [1]

Limitations

• SLC-like operation does not establish a universal endurance multiplier. [1]

Citations

1. Swissbit - Storage technology, pSLC Mode and Powersafe sections (accessed 2026-10-16)
2. Swissbit - EN-20 and EN-26 announcement, 6 August 2020, page 1 (full pSLC mode) (accessed 2026-10-16)

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