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Micron

MT28F400SG-8B

Flash Memory · TSOP-56 · Memory
Part Status: Obsolete In demand
Manufacturer
Micron
Mfr Part #
MT28F400SG-8B
Series
MT28F400
Category
Flash Memory
Datasheet
View datasheet ↗
Availability & Pricing
Est. market range$3.00 – $12.00
Sourcing channels2
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Voltage5 V
Access Time80 ns
Density4 Mb
Physical & Thermal
Package / CaseTSOP-56
Mounting TypeSurface Mount
SeriesMT28F400
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryFlash Memory
TypeMemory
Part StatusObsolete

4 Mbit (512K×8 / 256K×16) 5 V boot-block NOR Flash, 80 ns

Environmental & Export Classifications

RoHS Status
Non-Compliant

Availability & Sourcing

2 source rows · masked
SourceMfrQtyDate CodeConditionStatus
Live Micron 6 Live · fresh RFQ
Market Micron 6 Available RFQ

ZDI Stock — held in our warehouse · Market — recent offers, sourced on request · Live — fresh from the broker network. Supplier identity and cost are never shown.

Price History & Market Reference

Market Price Range

High$12.00
Low$3.00
Last$7.50
Price as of2026-08-18

ZDI Transaction

ZDI priceQuote on request
Active offers2

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
Specifications reviewed & updated · ZDI

Live search & sourcing activity for MT28F400SG-8B — real inquiries only.

Engineering FAQ

answers from this part's real data
MT28F400SG-8B 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 MT28F400SG-8B?
Voltage: 5 V; Access Time: 80 ns; Density: 4 Mb.
What package is MT28F400SG-8B supplied in?
MT28F400SG-8B is supplied in the TSOP-56 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source MT28F400SG-8B 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

MT28F400SG-8B 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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