What is a cross-reference page for MX29F040CQC-90G?
This page groups mapped replacement options for MX29F040CQC-90G so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
MX29F040CQC-90G replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for MX29F040CQC-90G, then verify package, specifications, and application fit before approval.
Compare MX29F040CQC-90G 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 MX29F040CQC-90G Macronix |
|---|---|
| Part Number | MX29F040CQC-90G |
| Manufacturer | Macronix |
| Category | Integrated Circuits (ICs) |
| Subcategory | Memory |
| Package | LCC |
| Series | MX29F |
| Key Attributes | - |
| Description | IC FLASH 4M PARALLEL 32PLCC |
| Lifecycle | - |
| Stock | 148,762 |
| Available | 46,128 |
| Min Order | 1 |
| Datasheet | Available |
| JESD-609 Code | e3 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| ECCN Code | 3A991.B.1.A |
| HTSUS | 8542.32.0071 |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| Lead Free | Lead Free |
| Packaging | Tube |
| Mounting Type | Surface Mount |
| Factory Lead Time | 16 Weeks |
| Published | 2009 |
| Categories | Integrated Circuits (ICs) |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage | 5V |
| Qualification Status | Not Qualified |
| Terminal Position | QUAD |
| Operating Temperature | 0°C~70°C TA |
| Part Status | Not For New Designs |
| Organization | 512Kx8 |
| Number of Functions | 1 |
| Operating Supply Voltage | 5V |
| Surface Mount | YES |
| Reflow Temperature-Max (s) | 40 |
| Pbfree Code | yes |
| Terminal Pitch | 1.27mm |
| Memory Type | Non-Volatile |
| Number of Terminations | 32 |
| Number of Pins | 32 |
| Pin Count | 32 |
| Width | 11.43mm |
| Data Polling | YES |
| Memory Interface | Parallel |
| Sub-Categories | Memory |
| Command User Interface | YES |
| Toggle Bit | YES |
| Memory Format | FLASH |
| Endurance | 100000 Write/Erase Cycles |
| Memory Width | 8 |
| Standby Current-Max | 0.000005A |
| Operating Mode | ASYNCHRONOUS |
| Series | MX29F |
| Technology | FLASH - NOR |
| Manufacturer | Macronix |
| Access Time (Max) | 90 ns |
| Write Cycle Time - Word, Page | 90ns |
| Sector Size | 64K |
| Package / Case | 32-LCC (J-Lead) |
| Number of Sectors/Size | 8 |
| Length | 14.05mm |
| Manufacturer's Part No. | MX29F040CQC-90G |
| Terminal Finish | Matte Tin (Sn) |
| Density | 4 Mb |
| Power Supplies | 5V |
| Voltage - Supply | 4.5V~5.5V |
| Supply Current-Max | 0.05mA |
| Programming Voltage | 5V |
| Memory Size | 4Mb 512K x 8 |
| Height Seated (Max) | 3.55mm |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing MX29F040CQC-90G replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for MX29F040CQC-90G?
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 MX29F040CQC-90G 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 MX29F040CQC-90G?
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 MX29F040CQC-90G 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 MX29F040CQC-90G from Macronix 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.