Samsung KLM8G1GETF-B041: 8GB eMMC 5.1 Complete Guide, Specs, EOL Status and Drop-In Alternatives

The Samsung KLM8G1GETF-B041 is an 8 GB (64 Gbit) eMMC 5.1 embedded flash storage device built on MLC NAND, housed in a 153-pin FBGA surface-mount package and rated for operation from -25C to +85C. It runs from a 3V VDDF (NAND) supply with a 1.8V/3V dual VCCQ interface supply, communicates over the industry-standard MMC protocol v5.1 on a x1/x4/x8-bit bus, and integrates wear leveling, bad block management, ECC error correction, hardware reset, and secure write protection on-chip. The part is currently reported as end-of-life (EOL), yet XAIPART lists 99,999 units in stock with MOQ 1 and tier pricing from $22.02 per unit at 1,000 pieces (as of 2026-09-12). For new designs, the verified drop-in alternative is the Alliance Memory ASFC8G31MA-51BIN, an 8 GB eMMC 5.1 in the same 153-ball FBGA footprint. This pillar guide consolidates verified specifications, design-in guidance, pricing tiers, lifecycle alerts, and migration notes into a single authoritative resource.

What Is the Samsung KLM8G1GETF-B041 and Which Verified Specs Define It?

The KLM8G1GETF-B041 belongs to Samsung's eMMC eSTORAGE family. An eMMC (embedded MultiMediaCard) integrates NAND flash die and a standard MMC controller in a single BGA package, presenting a simple read/write register interface to the host processor over the JEDEC-standard MMC protocol v5.1 instead of raw NAND management. This architecture dramatically reduces host software complexity because the integrated controller performs erase management, wear leveling, and error correction transparently.

All values above come from the XAIPART verified product database anchored to the Samsung datasheet (available via LCSC datasheet C499918).

How Do You Design In the KLM8G1GETF-B041 Correctly?

Power Tree and Supply Rails

Design your power tree with two rails: 3V for VCC/VDDF (the NAND area) and 1.8V or 3V for VCCQ (the host interface). The dual-supply flexibility lets you select VCCQ at 1.8V for lower I/O power or 3V for legacy hosts. Follow the power-up sequencing defined in the Samsung datasheet to avoid latch-up or undefined controller states during boot, and place decoupling capacitors on both rails close to the FBGA balls.

Host Interface Connections

The device connects to the host application processor, MCU, or MPU via three signal groups: the CLK clock line, the CMD command line, and the DAT0-DAT7 data lanes, which operate as a x1, x4-bit, or x8-bit bus per MMC protocol v5.1. The RST_n hardware reset line allows reliable recovery after system crashes and supports watchdog-driven recovery in unattended deployments. Because the on-chip controller handles ECC, bad block management, and wear leveling, no external controller or host-side FTL software is needed — the eMMC controller found natively in common Linux-capable SoCs connects directly.

Ball-Map Suffix Verification

A critical design consideration: verify the exact FBGA ball-map suffix before layout release. Suffix digits such as -B041 versus -B001 can encode entirely different ball grid arrays, making physically incompatible parts that look identical on paper. According to IClee's part-number decoder analysis, both share the KLM8G1GETF core (8 GB eMMC MLC), but you must never assume suffix interchangeability — always check the ball map in the Samsung datasheet for your specific suffix before reflow. Incorrect ball-map configuration leads to boot failure or instability.

Thermal and Environmental Fit

The -25C to +85C rated range covers typical consumer environments and most cabin-mounted automotive electronics. Note the lower limit is -25C, not the -40C common in automotive-grade parts, so the device is unsuitable for cold-weather automotive exterior applications without additional thermal design. The part is not specified as AEC-Q100 automotive grade in the provided data; automotive projects must perform their own qualification.

How Should You Manage the Write-Protection and Reliability Features?

Use the integrated secure write protection to prevent accidental or malicious overwriting of boot and configuration partitions — increasingly important for network-edge devices exposed to flash-borne attacks. The built-in wear leveling extends endurance under the small random writes typical of data-logging workloads, while ECC continuously corrects MLC NAND bit errors. The hardware reset function supports the robust power-fail behavior demanded by vehicle crank events and ignition-cycled write bursts. Enable write protection on the bootloader region during production programming so firmware integrity is defended independently of host software.

What Are the Verified Drop-In Alternatives and How Do They Compare?

The most direct verified drop-in alternative is the Alliance Memory ASFC8G31MA-51BIN, an 8 GB eMMC 5.1 in the same 153-ball FBGA footprint. Alliance Memory publishes an official comparison PDF against the KLM8G1GETF-B041, which is unusual and simplifies second-sourcing. Because eMMC follows a JEDEC-standard footprint and interface, 8 GB eMMC 5.1 devices from Micron (MTFC prefix), KIOXIA (THGBM/THGAF prefix), and SK hynix (H26M prefix) can also drop onto the same footprint per pcbsync.com cross-reference analysis — but exact MPNs and ball-map suffixes must be confirmed against the datasheet before qualification.

KLM4G1FETE-B041 is a same-family Samsung eMMC that provides 4 GB instead of 8 GB — a pin-compatible hardware substitute only when your application tolerates half the storage. The same MMC v5.1 host stack works without software changes, but for capacity-critical designs prefer an 8 GB alternative.

What Is the Market Position, Lifecycle Status, and Supply Situation?

The lifecycle status of the KLM8G1GETF-B041 is mixed in public sources: a June 2026 cross-reference article (icallin.com) reports the part as discontinued (EOL), while a February 2026 parts database (wwdparts.com) describes it as active but mature and Not Recommended for New Designs (NRND). XAIPART's verified database classifies it as EOL. Engineers planning new designs should treat it as EOL/NRND and qualify an alternative such as the Alliance Memory ASFC8G31MA-51BIN, while existing production lines should consider a last-time-buy strategy.

Supply remains available through XAIPART: 99,999 units in stock, MOQ 1, with tier pricing at $27.12 (qty 1+), $25.76 (qty 10+), $24.41 (qty 100+), $23.18 (qty 500+), and $22.02 (qty 1000+) as of 2026-09-12. Elsewhere, LCSC stocks 248 units (as of 2026-09-01, from $27.12), DigiKey Marketplace sells through Arcotek, and Octopart aggregates offers from roughly 24 distributors. Because the part is EOL, distributor stock is fragmented and broker prices may exceed authorized-distributor pricing — always confirm authorized-distributor status to avoid counterfeit risk.

Which Applications Does the KLM8G1GETF-B041 Fit Best Today?

Smartphone and Tablet Main Storage

The eSTORAGE family was designed for slim mobile products with superior power efficiency and fast speed. The 8 GB MLC capacity suits mainstream Android or RTOS stacks; the eMMC 5.1 controller offloads wear leveling, ECC, and bad block management from the host SoC. Select VCCQ at 1.8V for lower I/O power.

Industrial HMI and Data Loggers

The -25C to +85C range and secure write protection protect boot and configuration partitions, while wear leveling handles logging workloads' small random writes. Qualify the footprint-compatible ASFC8G31MA-51BIN second source during the same validation cycle given the EOL status.

Smart Home and IoT Hubs

IoT gateways store firmware images, device credentials, and buffered telemetry in 8 GB. Hardware reset permits watchdog-driven recovery, and secure write protection safeguards the bootloader. The dual 3V/1.8V supply scheme matches typical IoT power trees.

Set-Top Boxes and Smart TVs

The x8-bit data bus under MMC v5.1 provides the bandwidth for fast boot and responsive UI; managed MLC wear leveling withstands EPG update and cache-churn write patterns. Integration requires only CLK, CMD, and DAT[7:0] routing plus rail decoupling.

Automotive Infotainment (Non-Safety)

The +85C upper limit covers most cabin environments, and hardware reset supports robust power-fail behavior during crank events. Since the part is not documented as AEC-Q100 qualified in the provided data, tier-1 specification requirements must be verified independently.

Networking Equipment and Routers

The 8 GB capacity hosts dual-firmware (A/B) images plus persistent logs; secure write protection defends the bootloader on network-edge devices. The compact 153-FBGA fits dense router PCBs with standard networking power architectures.

What Should Buyers Watch Going Forward?

Three things anchor your purchasing decisions. First, lifecycle: with EOL status reported by icallin.com and NRND/mature status by wwdparts.com, place last-time-buy orders while authorized stock lasts — XAIPART's 99,999 units at MOQ 1 represent substantial remaining supply as of 2026-09-12. Second, price trajectory: tier pricing currently steps from $27.12 down to $22.02 at 1,000 pieces, but EOL parts commonly see broker prices rise above authorized-distributor levels as stock fragments; lock volume tiers early. Third, second-source qualification: use the Alliance Memory published comparison document to validate the ASFC8G31MA-51BIN on your existing PCB land pattern and eMMC 5.1 driver stack, and verify exact ball-map suffixes for any Micron, KIOXIA, or SK hynix candidate against your footprint before layout release. The verified feature set — built-in wear leveling, bad block management, ECC, hardware reset, and secure write protection over MMC protocol v5.1 — carries over to any JEDEC-compliant 8 GB eMMC 5.1 replacement, so firmware-level migration risk stays low when the footprint and ball map match.

How Do You Buy the KLM8G1GETF-B041 on XAIPART?

Order directly from the KLM8G1GETF-B041 product page on XAIPART. For the full ball map, electrical characteristics, and functional descriptions, download the Samsung datasheet PDF. Browse more components in our Memory ICs category, or read our eMMC design-in guide for host integration best practices.