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W25Q256JV — graded alternatives

winbond

4 verified matches, sorted by compatibility grade and evidence strength. Differences are listed before any compatibility claim. Data source: live tenant catalog. Data verified: 2026-07-13T00:00:00.000Z

The closest documented alternative to W25Q256JV is GigaDevice GD25B256E, graded FUNC (functional alternative that may need board or BOM changes, medium confidence). Key difference to review first: Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible. 3 further graded candidates listed below. Every match is an engineering-review candidate, not an unqualified drop-in claim.

Grading methodology: how grades and evidence classes work.

Known differences: GD25B256E vs W25Q256JV

Differences for the other candidates are listed per match below.

4 GRADED MATCHESSORTED BY GRADE · EVIDENCE STRENGTH
FUNCCONF · MEDIUM
GD25B256E★ BEST MATCH
GigaDevice · GigaDevice GD25B256E Nor Flash component with source-traceable manufacturer data.
Catalog evidence
Sourcing unconfirmed
Detail
NOT IDENTICAL
  • Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible
  • Status-register layout, QE bit default and security-register implementation vary by vendor — verify firmware and production programmer
  • AC timing and deep-power-down parameters differ; check datasheet before swapping
EVIDENCE
Density / voltage / interface follow naming convention — industry second-source practice · checked 2026-07-13T00:00:00.000Z
E5GigaDevice 2026 selection guide, Flash parametric tables (E5) · checked 2026-07-13T00:00:00.000Z
FUNCCONF · MEDIUM
GigaDevice · GigaDevice GD25B256H Nor Flash component with source-traceable manufacturer data.
Catalog evidence
Sourcing unconfirmed
Detail
NOT IDENTICAL
  • Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible
  • Status-register layout, QE bit default and security-register implementation vary by vendor — verify firmware and production programmer
  • AC timing and deep-power-down parameters differ; check datasheet before swapping
EVIDENCE
Density / voltage / interface follow naming convention — industry second-source practice · checked 2026-07-13T00:00:00.000Z
E5GigaDevice 2026 selection guide, Flash parametric tables (E5) · checked 2026-07-13T00:00:00.000Z
FUNCCONF · MEDIUM
GigaDevice · GigaDevice GD25Q256E Nor Flash component with source-traceable manufacturer data.
Catalog evidence
Sourcing unconfirmed
Detail
NOT IDENTICAL
  • Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible
  • Status-register layout, QE bit default and security-register implementation vary by vendor — verify firmware and production programmer
  • AC timing and deep-power-down parameters differ; check datasheet before swapping
EVIDENCE
Density / voltage / interface follow naming convention — industry second-source practice · checked 2026-07-13T00:00:00.000Z
E5GigaDevice 2026 selection guide, Flash parametric tables (E5) · checked 2026-07-13T00:00:00.000Z
FUNCCONF · MEDIUM
GigaDevice · GigaDevice GD25Q256H Nor Flash component with source-traceable manufacturer data.
Catalog evidence
Sourcing unconfirmed
Detail
NOT IDENTICAL
  • Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible
  • Status-register layout, QE bit default and security-register implementation vary by vendor — verify firmware and production programmer
  • AC timing and deep-power-down parameters differ; check datasheet before swapping
EVIDENCE
Density / voltage / interface follow naming convention — industry second-source practice · checked 2026-07-13T00:00:00.000Z
E5GigaDevice 2026 selection guide, Flash parametric tables (E5) · checked 2026-07-13T00:00:00.000Z
SIDE-BY-SIDE PARAMETERS — CROSS-BRAND, W25Q256JV
SPECGD25B256E
GigaDevice · FUNC
GD25B256H
GigaDevice · FUNC
GD25Q256E
GigaDevice · FUNC
GD25Q256H
GigaDevice · FUNC
Flash256Mb256Mb256Mb256Mb
PackageSOP16 300mil WSON8 6x5mm WSON8 8x6mm TFBGA24 8x6mm (5x5 ball array)USON8 4x4mm SOP8 208mil SOP16 300mil WSON8 6x5mm WSON8 8x6mmSOP16 300mil WSON8 6x5mm WSON8 8x6mm TFBGA24 8x6mm (5x5 ball array)USON8 4x4mm SOP8 208mil SOP16 300mil WSON8 6x5mm WSON8 8x6mm TFBGA24 8x6mm (5x5 ball array)
Manufacturer-sourced parameters. The original winbond part's figures are on its own datasheet; differences that matter are itemized per match above.
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Engineering questions about this cross-reference

What are the differences between GD25B256E and W25Q256JV?

Documented differences: Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible; Status-register layout, QE bit default and security-register implementation vary by vendor — verify firmware and production programmer; AC timing and deep-power-down parameters differ; check datasheet before swapping. Review each against your application before committing.

Is GD25B256E a drop-in replacement for W25Q256JV?

GD25B256E is a FUNC-graded engineering-review candidate (functional alternative that may need board or BOM changes). At minimum, review: Industry-standard SPI NOR pinout (SOP8/USON8/WSON8); most of the command set is compatible. Production use requires validation on your board.

What is the difference between P2P, PIN and FUNC grades?

P2P is a documented drop-in candidate, PIN keeps the package and pinout but needs firmware work, and FUNC is functionally similar but may require a board or BOM change.