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IS62C256-70U — TSSOP / SSOP / MSOP package (representative)
TSSOP / SSOP / MSOP
Representative of package type
ISSI

IS62C256-70U

SRAM · SOP-28 · Memory
Part Status: Obsolete In demand
Data last refreshed Jun 20, 2026
Manufacturer
ISSI
Mfr Part #
IS62C256-70U
Series
IS62C256
Category
SRAM
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels3
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Product Attributes

Electrical & Parametric
Organization32Kx8
Speed70ns
Voltage5V
Physical & Thermal
Package / CaseSOP-28
Mounting TypeSurface Mount
SeriesIS62C256
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategorySRAM
TypeMemory
Part StatusObsolete

256Kb (32Kx8) CMOS SRAM, 70ns access

Availability & Sourcing

3 sources
SourceMfrQtyDate CodeConditionStatus
Market ISSI 255 — — Available RFQ
Market ISSI 77 2002 — Available RFQ
Market ISSI 25 2002 — 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
IS62C256-70U viewed on the web · Web User
IS62C256-70U viewed on the web · Web User
IS62C256-70U viewed on the web · Web User
IS62C256-70U viewed on the web · Web User
IS62C256-70U viewed on the web · Web User
IS62C256-70U searched via the web · Web User
IS62C256-70U searched via the web · Web User
IS62C256-70U searched via the web · Web User

Recent search and sourcing activity for IS62C256-70U.

Engineering FAQ

IS62C256-70U 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 IS62C256-70U?
Organization: 32Kx8; Speed: 70ns; Voltage: 5V.
What package is IS62C256-70U supplied in?
IS62C256-70U is supplied in the SOP-28 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source IS62C256-70U 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

IS62C256-70U 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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