What is a cross-reference page for 23K640-I/SN?
This page groups mapped replacement options for 23K640-I/SN so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
23K640-I/SN replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for 23K640-I/SN, then verify package, specifications, and application fit before approval.
Compare 23K640-I/SN against mapped replacement options
Review package, lifecycle, stock, and MOQ in one view
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No mapped replacement parts yet
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 23K640-I/SN Microchip Technology |
|---|---|
| Part Number | 23K640-I/SN |
| Manufacturer | Microchip Technology |
| Category | Integrated Circuits (ICs) |
| Subcategory | Memory |
| Package | 8SOIC |
| Series | - |
| Key Attributes | - |
| Description | IC SRAM 64K SPI 20MHZ 8SOIC |
| Lifecycle | - |
| Stock | 190,699 |
| Available | 43,144 |
| Min Order | 1 |
| Datasheet | Available |
| Part Status | Active |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| Lead Free | Lead Free |
| Packaging | Tube |
| Mounting Type | Surface Mount |
| Factory Lead Time | 6 Weeks |
| Published | 2009 |
| Categories | Integrated Circuits (ICs) |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Interface | SPI, Serial |
| Technology | CMOS |
| Operating Temperature | -40°C~85°C TA |
| Supply Voltage | 3V |
| Manufacturer | Microchip Technology |
| Width | 3.9mm |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) |
| Output Characteristics | 3-STATE |
| Number of Functions | 1 |
| Radiation Hardening | No |
| Reflow Temperature-Max (s) | 40 |
| Mount | Surface Mount |
| Pbfree Code | yes |
| Number of Pins | 8 |
| Number of Terminations | 8 |
| Pin Count | 8 |
| Length | 4.9mm |
| Operating Supply Voltage | 3.3V |
| Number of Ports | 1 |
| Nominal Supply Current | 10mA |
| Height | 1.25mm |
| Sub-Categories | Memory |
| Memory Type | Volatile |
| Sync/Async | Synchronous |
| Word Size | 8b |
| Memory Interface | SPI |
| Clock Frequency | 20MHz |
| Address Bus Width | 1b |
| Memory Format | SRAM |
| Standby Current-Max | 0.000004A |
| I/O Type | SEPARATE |
| Base Part Number | 23K640 |
| Manufacturer's Part No. | 23K640-I/SN |
| JESD-609 Code | e3 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| REACH SVHC | No SVHC |
| ECCN Code | EAR99 |
| HTSUS | 8542.32.0041 |
| Density | 64 kb |
| Supply Voltage-Max (Vsup) | 3.6V |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Supply Voltage-Min (Vsup) | 2.7V |
| Voltage - Supply | 2.7V~3.6V |
| Memory Size | 64Kb 8K x 8 |
| Standby Voltage-Min | 2.7V |
| Access Time | 25 ns |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing 23K640-I/SN replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for 23K640-I/SN?
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 23K640-I/SN 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 23K640-I/SN?
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 23K640-I/SN 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 23K640-I/SN from Microchip Technology 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.