What is a cross-reference page for AT25DF321A-SH-T?
This page groups mapped replacement options for AT25DF321A-SH-T so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
AT25DF321A-SH-T replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for AT25DF321A-SH-T, then verify package, specifications, and application fit before approval.
Compare AT25DF321A-SH-T against mapped replacement options
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This product currently does not show a published cross-reference list. Use RFQ support if your team needs an alternative part review.
Specification view
Parameter Comparison Chart
A side-by-side view of the source part and its mapped alternatives so buyers and engineers can screen package, availability, lifecycle, and key descriptors before RFQ.
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| Parameter Comparison Chart | Current part AT25DF321A-SH-T Adesto Technologies |
|---|---|
| Part Number | AT25DF321A-SH-T |
| Manufacturer | Adesto Technologies |
| Category | Integrated Circuits (ICs) |
| Subcategory | Memory |
| Package | 8SOIC |
| Series | - |
| Key Attributes | - |
| Description | IC FLASH 32M SPI 100MHZ 8SOIC |
| Lifecycle | - |
| Stock | 190,733 |
| Available | 17,637 |
| Min Order | 1 |
| Datasheet | Available |
| Lead Free | Lead Free |
| Mounting Type | Surface Mount |
| Published | 1997 |
| Factory Lead Time | 7 Weeks |
| Packaging | Tape & Reel (TR) |
| Categories | Integrated Circuits (ICs) |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Technology | CMOS |
| Supply Voltage | 3V |
| Part Status | Not For New Designs |
| Nominal Supply Current | 19mA |
| Weight | 540.001716mg |
| Number of Functions | 1 |
| Radiation Hardening | No |
| Mount | Surface Mount |
| Terminal Pitch | 1.27mm |
| Number of Pins | 8 |
| Number of Terminations | 8 |
| Pin Count | 8 |
| Operating Supply Voltage | 3.3V |
| Memory Type | Non-Volatile |
| Interface | Serial |
| Clock Frequency | 100MHz |
| Package / Case | 8-SOIC (0.209, 5.30mm Width) |
| Sub-Categories | Memory |
| Memory Format | FLASH |
| Max Supply Current | 20mA |
| Manufacturer | Adesto Technologies |
| Sync/Async | Synchronous |
| Word Size | 8b |
| Endurance | 100000 Write/Erase Cycles |
| Write Protection | HARDWARE/SOFTWARE |
| Operating Temperature | -40°C~85°C TC |
| Memory Interface | SPI |
| Memory Width | 8 |
| Address Bus Width | 1b |
| Standby Current-Max | 0.00001A |
| Length | 5.29mm |
| Manufacturer's Part No. | AT25DF321A-SH-T |
| Write Cycle Time - Word, Page | 7μs, 3ms |
| RoHS Status | ROHS3 Compliant |
| REACH SVHC | No SVHC |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| JESD-609 Code | e4 |
| ECCN Code | 3A991.B.1.A |
| Supply Voltage-Max (Vsup) | 3.6V |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Supply Voltage-Min (Vsup) | 2.7V |
| Voltage - Supply | 2.7V~3.6V |
| Programming Voltage | 2.7V |
| Data Retention Time-Min | 20 |
| Serial Bus Type | SPI |
| Integrated Cache | 32 Mb |
| Number of Serial I\/Os | 5 ns |
| Voltage - Supply (Vcc\/Vdd) | 32Mb 256Bytes x 16384 pages |
| Data Bus Width | 1b |
| Page Size | 256B |
| Height Seated (Max) | 2.16mm |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing AT25DF321A-SH-T replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for AT25DF321A-SH-T?
Not automatically. Cross-reference mapping helps shortlist candidates, but package, electrical behavior, qualification scope, and approval rules still need to be checked before release.
Which parameters should teams compare first for AT25DF321A-SH-T alternatives?
Start with package, series, key attributes, lifecycle status, stock position, datasheet access, and the mapped pin-to-pin or cross-reference note. Then confirm application-specific requirements in the datasheet and RFQ stage.
Can I request a quote for an alternative to AT25DF321A-SH-T?
Yes. Use the product links or RFQ actions on this page to request pricing, availability, documentation, and sourcing support for any listed alternative part.
Is AT25DF321A-SH-T obsolete, and what replacement should buyers review first?
Check the lifecycle row on this page first. If buyers need a fast starting point, the strongest mapped replacement currently surfaced here is , followed by the other alternatives shown in the comparison table.
Engineering support
Need help validating the replacement path?
If your team is unsure whether a mapped alternative to AT25DF321A-SH-T from Adesto Technologies is really usable, contact us for help on package fit, pin compatibility, key parameter gaps, and qualification-facing review questions.
Contact a hardware engineer
Email our engineering support contact at [email protected], or use the contact page if the question should be routed across sourcing, engineering, and support.
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Package and pin compatibility
Review whether the alternate path looks credible from package, footprint, and pin-level perspectives.
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Parameter and function gaps
Surface the electrical, interface, or application-fit questions that still need confirmation before approval.
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Qualification and approval prep
Organize the documentation, datasheet evidence, and validation checkpoints your internal team may still require.