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MT28F400B5WG-8BET — TSSOP / SSOP / MSOP package (representative)
TSSOP / SSOP / MSOP
Representative of package type
Micron

MT28F400B5WG-8BET

Flash Memory · TSSOP-48 · Memory
Part Status: Obsolete In demand
Data last refreshed Jul 31, 2026
Manufacturer
Micron
Mfr Part #
MT28F400B5WG-8BET
Series
MT28F400B5
Category
Flash Memory
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels2
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Product Attributes

Electrical & Parametric
Density4Mb
Voltage5V
Access Time80ns
Physical & Thermal
Package / CaseTSSOP-48
Mounting TypeSurface Mount
SeriesMT28F400B5
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryFlash Memory
TypeMemory
Part StatusObsolete

4Mb (512Kx8/256Kx16) NOR Flash, 5V, Boot Block, 80ns

Availability & Sourcing

2 sources
SourceMfrQtyDate CodeConditionStatus
Live Micron 48 199942 — Live RFQ
Market Micron 48 199942 — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

recent searches, RFQs & offers
MT28F400B5WG-8BET viewed on the web · Web User
MT28F400B5WG-8BET viewed on the web · Web User
Specifications reviewed & updated · ZDI

Recent search and sourcing activity for MT28F400B5WG-8BET.

Engineering FAQ

MT28F400B5WG-8BET is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of MT28F400B5WG-8BET?
Density: 4Mb; Voltage: 5V; Access Time: 80ns.
What package is MT28F400B5WG-8BET supplied in?
MT28F400B5WG-8BET is supplied in the TSSOP-48 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source MT28F400B5WG-8BET beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

MT28F400B5WG-8BET is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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