Still using MLC NAND in an active storage design? Selected legacy MLC components and products are being phased out across the industry. If your system has years of production or service life ahead, now is the time to review the exact storage configuration it depends on.
Is MLC NAND Going Away?
Selected legacy MLC NAND components are reaching end of life, and affected storage products are following their own phase-out schedules. There is no single end date for all MLC SSDs or memory cards. Availability depends on the exact part number and configuration, so an active program should be reviewed individually.
Have a part number ready? Email AMP sales with your quantity and program timeline.
Why MLC NAND Is Phasing Out
MLC NAND has supported industrial and embedded storage designs for years. As flash technology and product portfolios evolve, manufacturers are discontinuing selected older NAND components and the storage products built around them. Published notices from Kioxia, Swissbit and ATP provide concrete examples across NAND components, CompactFlash cards and other storage devices.
That industry shift does not mean every MLC part has been discontinued. It does mean that continued availability cannot be assumed from a general description such as “MLC SSD.” The complete part number, configuration and program demand determine the next step.
Are There Actual MLC End-of-Life Dates?
Yes, for specific affected products. These published examples show why the exact part number matters:
| Published notice | Affected scope | Last-time-buy orders | Last shipment |
|---|---|---|---|
| Kioxia TSOP notice | Listed TSOP NAND component part numbers | September 15, 2026 | March 15, 2027 |
| Swissbit PDN26-0044 | Listed C-56 MLC CompactFlash products | September 15, 2026 | December 31, 2028 |
Important: These are examples of product-specific notices, not AMP order deadlines or a universal MLC cutoff. Their September 15 order dates have passed. A later last-shipment date applies to accepted orders and does not establish that new orders remain open. Confirm any current availability for your exact requirement with AMP.
What MLC Phase-Out Means for a Long-Life System
When a storage configuration changes, matching the connector and capacity may not be enough. Engineers may need to review the proposed device against the host system and its actual workload. Consider the following before an upcoming build or service order:
- Endurance and workload: Document write volume, duty cycle and required service life.
- Physical and electrical fit: Confirm form factor, interface, capacity and power requirements.
- Operating conditions: Verify temperature grade and other environmental requirements.
- System behavior: Check performance, firmware behavior and any required protection or security features.
- Qualification: Determine what validation a component or configuration change would trigger.
Some programs may still call for MLC. Others may be able to evaluate another NAND configuration. That decision should be based on the application and approved specifications, not on a blanket assumption that one flash type is a direct substitute for another.
The New Value of pSLC for MLC Programs
As legacy MLC parts phase out, pseudo single-level cell (pSLC) is an option worth evaluating for write-intensive or long-life designs. In a pSLC configuration, NAND that would normally store multiple bits per cell is operated at one bit per cell. For example, 3D TLC NAND can be configured in pSLC mode to improve write endurance compared with the same NAND operated in ordinary TLC mode.
The trade-off is lower usable capacity from the same physical flash. pSLC is not native SLC, and it is not an automatic drop-in replacement for MLC. Its practical value is the ability to pursue higher endurance using a different NAND configuration as older MLC supply contracts. The actual capacity, drive-level endurance, performance, data retention and cost depend on the finished product and workload.
For a new AMP configuration, the useful comparison is between your existing MLC drive’s requirements and the proposed drive’s specifications—especially TBW or DWPD, temperature grade, form factor, interface and firmware behavior. AMP can review your requirements and discuss whether a pSLC configuration may be appropriate; your team should then validate any proposed change in its system. Availability of a particular configuration requires confirmation.
What to Send AMP for an MLC Program Review
You do not need to know the replacement in advance. Send us what your system uses now and what the program needs next:
- Current AMP or manufacturer part number, including the full suffix
- Form factor, interface, capacity and operating-temperature requirement
- Quantity needed now, estimated annual usage and required delivery date
- Expected remaining production and service life
- Any mandatory endurance, firmware, security or qualification requirements
AMP will use those details to check availability and lead time for your specific requirement. We will then tell you whether a suitable MLC configuration can be offered or discuss an alternative for your team to evaluate.
Still Specify MLC? Send Us Your Requirements.
Send us your current part number, quantity and program timeline. AMP will check availability for your specific requirement and follow up with what we find. We will follow up after reviewing your requirements.
Email sales@ampinc.com or call (714) 460-9800.
MLC End-of-Life FAQ
Is all MLC NAND discontinued?
No. Published notices identify specific components or product series. Check the full part number to determine whether a notice applies and what options remain.
Does a last-shipment date mean I can still order?
No. Last-time-buy and last-shipment are separate milestones. A future shipment date can refer to previously accepted orders.
Can a pSLC SSD replace an MLC SSD?
Possibly. pSLC can provide higher endurance than the same NAND in standard TLC mode, with less usable capacity. Compare the finished drives’ capacity, TBW or DWPD, performance, temperature, firmware behavior and other requirements, then qualify the proposed configuration in the target system.
What if I only have an old part number?
Send AMP the complete part number and any known quantity or application details. Our team can use that information as the starting point for a requirement review.
Sources: Kioxia TSOP EOL notification, March 15, 2026; Swissbit PDN26-0044, April 17, 2026; ATP PCN E26040701000, April 10, 2026; Transcend SLC Mode explanation; ATP pSLC endurance discussion.
These notices illustrate selected industry phase-outs. Product specifications, availability, pricing and lead time require confirmation for each inquiry.
