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NOR flash

We have handled 0 nor flash part numbers, 0 of them in stock right now. This page lists all of them — including the ones we do not currently hold.

Density range
4Mb – 1Gb
Interface
SPI · dual/quad SPI
Main brands
Winbond · Macronix · GigaDevice
Common source
EMS leftovers and distributor clear-outs
Typical packing
Full reels, MSL bags intact
Lead time
Ships within 3 days
Most stock is consolidated into Hong Kong before it goes on sale.
Original labels and date codes, photographed by us — this is how you verify condition yourself.
We open cartons for you — please do not break shrink wrap yourself.
Our own Hong Kong warehouse — not a shared third-party facility.

Substituting SPI NOR: three parameters that must line up

Mainstream SPI NOR parts substitute well — the failures all hide in the details.

  1. Voltage grades do not mix

    W25Q64JV is the 3V grade, W25Q64JW is 1.8V — one letter apart. Wrong grade means dead or damaged. Your board rail decides half the part number.

  2. Same pin count, different bodies

    Eight pins can be SOIC-8 150mil, SOIC-8 208mil or WSON8 — footprints are not interchangeable. Match the package suffix to the last character.

  3. Cross-brand swaps: check the status registers

    Winbond, Macronix and GigaDevice are broadly command-compatible, but QE-bit location and status-register writes differ — re-verify boot code in quad mode; plain single-line SPI is usually painless.

Cross-reference by brand

Equivalents by brand at the same rating. Green = we have handled it and the cell links through. This is not a drop-in guarantee — use it to narrow the search.

RatingWinbondMacronixGigaDevice
32Mb 3V SOIC-8W25Q32JVSSIQMX25L3233FGD25Q32CSIG
64Mb 3V SOIC-8W25Q64JVSSIQMX25L6433FGD25Q64CSIG
128Mb 3V SOIC-8W25Q128JVSIQMX25L12833FGD25Q127CSIG

Part numbers in this category

We handle this category, but there is no line-item record in the system yet. This page stays up — the part table appears here automatically once we hold or have handled stock.

For now, use part search, or set a stock alert。

Common questions

Blank or programmed?

We only handle new full reels — factory blank (all FF). We do not deal in pulled NOR: erase-cycle history cannot be verified, and that is not something we can responsibly sell.

Minimum order?

By the reel. A standard 128Mb reel is 2,500 pieces; smaller densities pack more. Multi-reel lots price better.

Are you an authorised distributor for these brands?

No, and we have never claimed to be. Stock comes from cancelled projects, plant closures and distributor clear-outs, and every lot says which. See Quality & verification.