MX25U25635FZ2I-10G
256Mbit 1.8V Serial NOR Flash memory with x1/x2/x4 I/O, 108MHz operation and an industrial-grade 8-WSON package.
Key details
| Part Number | MX25U25635FZ2I-10G |
|---|---|
| Manufacturer | Macronix |
| Category | Serial NOR Flash |
| Lifecycle Status | NRND |
| Series | MX25U25635F |
| Package / Case | 8-WSON (8 × 6 mm) |
| Pin Count | 8 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-07-15 |
Part information
MX25U25635FZ2I-10G overview
MX25U25635FZ2I-10G is a 256Mbit, 1.8V Serial NOR Flash device supporting single, dual and quad I/O. The Z2I-10G ordering code identifies the 8 × 6 mm 8-WSON package, industrial temperature range and 108 MHz speed grade.
Macronix has published migration guidance from the MX25U25635F family to the newer MX25U25645G family. A family migration document is useful for engineering review, but it does not make a differently packaged orderable code a drop-in substitute.
Key technical specifications
| Density | 256 Mb |
|---|---|
| Memory type | Serial NOR Flash |
| Interface | SPI, Dual I/O, Quad I/O |
| Supply voltage | 1.65V–2.0V |
| Maximum clock frequency | 108 MHz |
| Package | 8-WSON, 8 × 6 mm |
| Operating temperature | -40°C to +85°C |
Lifecycle and sourcing review
This page treats the device as not recommended for new design and does not claim a direct alternative. For a legacy requirement, confirm the exact package, pinout, commands, protection features, firmware behavior, qualification and traceability before purchase.
MX25U25635FZ2I-10G selection and design context
MX25U25635FZ2I-10G is cataloged as a Serial NOR Flash in the MX25U25635F family. Its recorded function is 256Mbit 1.8V Serial NOR Flash memory with x1/x2/x4 I/O, 108MHz operation and an industrial-grade 8-WSON package.. Selection should be based on the complete electrical limits, package drawing and ordering suffix rather than the abbreviated family code.
- Density: 256 Mb. Confirm address organization, software support and required usable capacity.
- Memory type: Serial NOR Flash. Confirm address organization, software support and required usable capacity.
- Interface: SPI, Dual I/O, Quad I/O. Confirm logic levels, signaling mode, host support and required external components.
- Supply voltage: 1.65V–2.0V. Check rail compatibility, tolerance and sequencing under worst-case conditions.
Application and qualification considerations
When evaluating this memory device, confirm density, organization, interface mode, supply rails, access or clock timing, erase endurance and software command compatibility. For a new design, review power-up behavior, interface timing, absolute maximum ratings, thermal limits and any external-component requirements in the latest manufacturer documentation. Existing-board replacement work should additionally confirm pinout, footprint, firmware assumptions and qualification grade.
Procurement checks for MX25U25635FZ2I-10G
The recorded package is 8-WSON (8 × 6 mm), the temperature range is -40°C to +85°C, and the lifecycle status is NRND as of 20260715. Before ordering, confirm the exact MPN on the label, packing format, quantity, date-code requirements, traceability documents and current factory status.
MX25U25635FZ2I-10G FAQ
What distinguishes MX25U25635FZ2I-10G within the MX25U25635F family?
MX25U25635FZ2I-10G is the exact orderable code for a 256Mbit 1.8V Serial NOR Flash memory with x1/x2/x4 I/O, 108MHz operation and an industrial-grade 8-WSON package. in 8-WSON (8 × 6 mm). Related MX25U25635F devices may change package, rating, interface option or qualification grade, so compare the manufacturer ordering table before substitution.
What package and footprint checks are required for MX25U25635FZ2I-10G?
MX25U25635FZ2I-10G is recorded in 8-WSON (8 × 6 mm) with 8 pins, leads or contacts. Confirm the manufacturer package drawing, dimensions, pin numbering, exposed-pad requirements and packing suffix before releasing a PCB footprint.
Which specifications should be verified when selecting MX25U25635FZ2I-10G?
Density is recorded as 256 Mb, Memory type is recorded as Serial NOR Flash. Use the latest datasheet for minimum and maximum limits, test conditions, timing and absolute maximum ratings rather than relying only on a distributor summary.
What is the lifecycle status of MX25U25635FZ2I-10G?
MX25U25635FZ2I-10G was recorded as NRND when verified on 20260715. Reconfirm factory status, revision availability, lead time and any last-time-buy notice before design-in or volume procurement.
What information should be included in an RFQ for MX25U25635FZ2I-10G?
Provide the complete MX25U25635FZ2I-10G orderable code, target quantity, acceptable date-code range, required packing method, delivery destination and documentation needs. For replacement work, also identify the existing package and any mandatory qualification grade.
Lifecycle and sourcing review
This part may not be recommended for new designs. Confirm package, electrical requirements, firmware behavior and qualification needs before selecting an alternative.
Macronix provides migration guidance from the MX25U25635F family to MX25U25645G. The listed candidate uses a different orderable package code and is not a drop-in replacement claim; confirm package, pinout, commands, protection features, firmware and qualification requirements.