Macronix MX25U

MX25U variants from Macronix

Variants

Mfr

Macronix

Packages

8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad (+2 more)

Lifecycle

Active

MX25U Overview

What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.

MX25U is a Macronix order-code family — not a single orderable MPN. This page lists 26 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.

Flash, 256KX4, PDSO8, 0.150 INCH, HALOGEN FREE AND ROHS COMPLIANT, MS-012, SOP-8 Other listed variants describe: 128Mb SPI NOR Flash Memory IC; Flash, 4MX4, PDSO8, SOP-8.

Across listed variants, watch these parameters: packages: 8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP.

Suffix examples in this family: 1001EMI-14G, 12832FM2I02, 12872FM2I02, 1635EM1I-10G, 1635FBAI-10G, 1635FM2I-10G, 25635FMI-10G, 25635FZ2I-10G. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.

Columns that actually vary on this page: Package Type. If two rows match on MPN prefix but differ there, they are not interchangeable for production.

Example MPNs: MX25U1001EMI-14G, MX25U12832FM2I02, MX25U12872FM2I02, MX25U1635EM1I-10G, MX25U1635FBAI-10G, MX25U1635FM2I-10G.

Key Features

Footprint / package: 8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSPLand pattern and thermal pad differ between these packages — run a quick footprint check before you swap variants.
Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
26 distinct suffix patternsExamples: 1001EMI-14G, 12832FM2I02, 12872FM2I02, 1635EM1I-10G, 1635FBAI-10G (+21 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Microcontrollers — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 26 MX25U part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Package Type	Manufacturer	Lifecycle	RoHS	Availability	Action
MX25U1001EMI-14G	Flash, 256KX4, PDSO8, 0.150 INCH, HALOGEN FREE AND ROHS COMPLIANT, MS-012, SOP-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U12832FM2I02	128Mb SPI NOR Flash Memory IC	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U12872FM2I02	MEMORY	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U1635EM1I-10G	Flash, 4MX4, PDSO8, SOP-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U1635FBAI-10G	Flash, 4MX4, PBGA12, WLCSP-12	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U1635FM2I-10G	Flash, 4MX4, PDSO8, SOP-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U25635FMI-10G	Flash, 64MX4, PDSO16, SOP-16	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U25635FZ2I-10G	108MHz Serial Flash Memory, 64M x 4, 1.8V, Industrial, PDSO8/WSON-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U25645GZ4I00	166MHz Serial Flash Memory IC, 1.8V, 32M Words, Industrial, R-PDSO-N8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U3235FBAI-10G	Flash, 8MX4, PBGA12, WLCSP-12	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U3235FM2I-10G	Flash, 8MX4, PDSO8, SOP-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U3235FZBI-10G	Flash, 8MX4, PDSO8, USON-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U3235FZCI-10G	IC FLASH 32MBIT SPI/QUAD 104MHZ	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U3235FZNI-10G	Flash, 8MX4, PDSO8, WSON-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U4033EZUI-12G	Flash, 1MX4, PDSO8, 4 X 4 MM, 0.60 MM HEIGHT, 0.80 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-252, USON-8	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U51245GMI00	128Mb Serial Flash Memory, 1.8V, 166MHz, PDSO-16	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U51245GXDI00	128Mb Serial Flash Memory, 1.8V, 166MHz, PBGA-24	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U51245GZ4I00	512Mb SPI NOR Flash Memory IC	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U6432FZNI02	IC FLASH 64MBIT SPI/QUAD 8WSON	-	Macronix	Active	Compliant	In Stock	RFQ
MX25U6435FBBI-10G	Flash, 16MX4, PBGA12, WLCSP-12	-	Macronix	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on MX25U map to package, grade, and reel options.

MX25U uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.

Suffixes seen here: 1001EMI-14G, 12832FM2I02, 12872FM2I02, 1635EM1I-10G, 1635FBAI-10G, 1635FM2I-10G, 25635FMI-10G, 25635FZ2I-10G, 25645GZ4I00, 3235FBAI-10G (+16 more).

What changes between rows: Package Type. Sort the table by these columns when narrowing from base number to a single MPN.

Full MPN examples: MX25U1001EMI-14G, MX25U12832FM2I02, MX25U12872FM2I02, MX25U1635EM1I-10G, MX25U1635FBAI-10G.

Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.

How to Choose the Right MX25U Microcontrollers

📦

Match the footprint first

Packages here: 8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP. Open the land-pattern drawing before you substitute a different suffix.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For MX25U, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "MX25U" — include the full suffix (e.g. 1001EMI-14G, 12832FM2I02, 12872FM2I02). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for MX25U product family

Identity

Base Model

MX25U

Manufacturer

Macronix

Series

MXSMIO™

Listed Variants

Variant Parameters

Package Type

8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP

Lifecycle Status

Active

RoHS Status

Compliant

Source MX25U with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 26 ordering variants from Macronix. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View Macronix Browse all base models →

Frequently Asked Questions

Common technical questions about the MX25U product family.

Is MX25U a single part I can order, or a family prefix?

MX25U is a base / family code from Macronix. You order a full MPN such as MX25U1001EMI-14G, MX25U12832FM2I02, MX25U12872FM2I02. The variant table lists 26 orderable lines with different suffixes.

What do the suffix letters on MX25U part numbers mean?

Listed suffix fragments include: 1001EMI-14G, 12832FM2I02, 12872FM2I02, 1635EM1I-10G, 1635FBAI-10G, 1635FM2I-10G. Typically they encode package (8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP), temperature grade, and tape/reel option. Always decode on the Macronix datasheet ordering guide — do not guess from pattern alone.

Which specs actually differ between MX25U variants here?

On this page the varying fields are: Package Type. Filter the table by the parameter you care about before picking an MPN.

Can I swap between 8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP packages in the same MX25U family?

Only after footprint and thermal review. Packages listed here (8-SOIC (0.209", 5.30mm Width), 8-WDFN Exposed Pad, 8-WLGA Exposed Pad, 14-XFBGA, WLCSP) use different land patterns and often different thermal resistance. Layout swaps need a new paste stencil at minimum, not just a BOM edit.

What is the lifecycle status of MX25U variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on MX25U?

Full manufacturer MPN (not just MX25U), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Related Base Numbers

Related Series

Explore product families linked to this base-number page.