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CATALYST

CAT28C256NI

EEPROM · PLCC-32 · Memory
Part Status: Obsolete
Data last refreshed Jun 18, 2026
Manufacturer
CATALYST
Mfr Part #
CAT28C256NI
Series
CAT28C256
Category
EEPROM
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Memory Size256Kbit
Organization32K x 8
InterfaceParallel
Supply Voltage4.5V ~ 5.5V
Physical & Thermal
Package / CasePLCC-32
Mounting TypeSurface Mount
SeriesCAT28C256
Classification & Lifecycle
CategoryEEPROM
TypeMemory
Part StatusObsolete

256 Kb (32K x 8) Parallel EEPROM, 5 V

Part Activity

recent searches, RFQs & offers
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI viewed on the web · Web User
CAT28C256NI searched via the web · Web User

Recent search and sourcing activity for CAT28C256NI.

Engineering FAQ

CAT28C256NI 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 CAT28C256NI?
Memory Size: 256Kbit; Organization: 32K x 8; Interface: Parallel; Supply Voltage: 4.5V ~ 5.5V.
What package is CAT28C256NI supplied in?
CAT28C256NI is supplied in the PLCC-32 package, surface mount.
Can ZDI source CAT28C256NI 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

CAT28C256NI 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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