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CY27C256-120WC — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Cypress Semiconductor Corp

CY27C256-120WC

UV EPROM · CDIP-28 (windowed) · Memory
Part Status: Obsolete
Data last refreshed Jun 18, 2026
Manufacturer
Cypress Semiconductor Corp
Mfr Part #
CY27C256-120WC
Series
CY27C256
Category
UV EPROM
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Organization32K x 8
Access Time120 ns
Voltage5 V
Physical & Thermal
Package / CaseCDIP-28 (windowed)
Mounting TypeThrough Hole
SeriesCY27C256
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryUV EPROM
TypeMemory
Part StatusObsolete

256 Kbit (32K x 8) UV-erasable PROM, 120 ns access

Environmental & Export Classifications

RoHS Status
Non-Compliant

Engineering FAQ

answers from this part's real data
CY27C256-120WC 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 CY27C256-120WC?
Organization: 32K x 8; Access Time: 120 ns; Voltage: 5 V.
What package is CY27C256-120WC supplied in?
CY27C256-120WC is supplied in the CDIP-28 (windowed) package, through hole, rated 0°C ~ 70°C.
Can ZDI source CY27C256-120WC 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

CY27C256-120WC 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.

Related Parts

from Cypress Semiconductor Corp

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