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AMD Inc

AM29F040B-120EC

Flash Memory · TSOP-32 · Memory
Part Status: Obsolete
Data last refreshed Jul 27, 2026
Manufacturer
AMD Inc
Mfr Part #
AM29F040B-120EC
Series
AM29F040B
Category
Flash Memory
Datasheet
View datasheet ↗
Availability & Pricing
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Cross Reference for AM29F040B-120EC

Alliance Memory published cross-reference · AM29F040B family

ZD Integrated Circuits is an authorized distributor of Alliance Memory. Alliance Memory publishes the part below as cross-reference for the AM29F040B family, which includes AM29F040B-120EC. Confirm speed grade, temperature range and package against the datasheet before substituting.

Alliance Memory partFamilyTechnologyDensityOrganizationMatch
AS29CF040-55CCIN AS29CF040-55CCIN Parallel 5V NOR Flash4Mb512K x 8 Family Quote →
Source: Alliance Memory published cross-reference data · alliancememory.com ↗

Product Attributes

Electrical & Parametric
Memory Size4Mb
Access Time120 ns
Voltage - Supply4.5V ~ 5.5V
Organization512K x 8
Physical & Thermal
Package / CaseTSOP-32
Mounting TypeSurface Mount
SeriesAM29F040B
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryFlash Memory
TypeMemory
Part StatusObsolete

4Mb (512Kx8) 5V NOR Flash, 120ns

Part Activity

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Specifications reviewed & updated · ZDI

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Engineering FAQ

Is there an Alliance Memory cross-reference for AM29F040B-120EC?
Alliance Memory publishes 1 cross-reference for the AM29F040B family, which includes AM29F040B-120EC: AS29CF040-55CCIN. ZD Integrated Circuits is an authorized distributor of Alliance Memory — confirm speed grade, temperature range and package against the datasheet, then request a quote for pricing and lead time.
AM29F040B-120EC 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 AM29F040B-120EC?
Memory Size: 4Mb; Access Time: 120 ns; Voltage - Supply: 4.5V ~ 5.5V; Organization: 512K x 8.
What package is AM29F040B-120EC supplied in?
AM29F040B-120EC is supplied in the TSOP-32 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source AM29F040B-120EC 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

AM29F040B-120EC 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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