JSMC04AUM1HYAEA-H5

The JSMC04AUM1HYAEA-H5 packs 4GB of managed NAND and a full eMMC 5.1 controller into a single 32Gb die, delivered in a 153-ball FBGA measuring 11.5 x 13.0 x 1.0mm. Jeju Semiconductor rates this version for the commercial 0 to 85°C band, with the lower limit specified at -25°C, making it a cost-effective storage block for consumer and general embedded builds. The controller handles wear leveling, bad-block management, ECC, and garbage collection on chip, so the host sees a simple block device instead of raw flash.

Key Features

• eMMC 5.1 managed storage - JEDEC-compliant interface with an integrated controller that abstracts flash management away from the host processor.
• HS400 bus speed - up to 400MB/s at a 200MHz clock over an 8-bit bus, available with the 1.7V to 1.95V VCCQ option.
• Dual supply rails - VCC flash power at 2.7V to 3.6V and VCCQ controller I/O at either 1.70V to 1.95V or 2.7V to 3.6V, with an internal LDO on chip.
• 4GB single-die density - one 32Gb NAND die yields 3728MB of user partition space (LBA 0x748000), a clean fit for compact firmware and OS images.
• Command queuing and cache - eMMC 5.1 command queuing, cache, packed commands, and HPI help keep small-transfer workloads responsive.
• Backward compatibility - the eMMC 5.1 device also operates with legacy eMMC hosts, and supports HS200 and DDR modes alongside the top HS400 timing.

Typical Applications

• Consumer electronics - the commercial temperature rating and small footprint suit set-top boxes, media players, and smart-home hubs.
• General embedded boot media - 4GB is enough to hold a bootloader, kernel, and root filesystem for many Linux-class devices.
• Cost-sensitive volume designs - single-die construction keeps the bill of materials lean where storage needs are modest.

Unique Advantages

• Managed-NAND simplicity - because the controller runs ECC and wear leveling internally, designers skip the firmware burden of a raw NAND stack.
• Broad feature coverage - Boot and RPMB partitions, Secure Erase and Trim, Sanitize, Field Firmware Update, and a Device Health Report all come built in.
• Power-loss resilience - power-off notification and the on-chip controller guard stored contents against unexpected host shutdown.

Why Engineers Choose JSMC04AUM1HYAEA-H5

Design teams reach for the JSMC04AUM1HYAEA-H5 when they want a compact, standards-based 4GB eMMC for room-temperature products without paying for capacity or grades they will not use. Rated sequential figures are 130MB/s read and 20MB/s write, measured on Jeju's board under HS400 with cache on, so size the write path to those figures rather than the peak bus rate. Storage is specified from -40°C to 85°C when the device is not operating.

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