Microprocessor
Samsung Semiconductor

eMMC is an embedded storage solution with an MMC interface, flash memory and controller, all in a small BGA package. It is based upon the industry-standard MMC System Specification v4.3 and JEDEC BGA packaging standards. With interface speeds of up to 52 MB per second, eMMC provides fast scalable performance. It supports x1, x4 or x8 bus width and allows for an interface voltage of either 1.8v or 3.3v.

eMMC provides a flexible, industry-standard architecture that simplifies mass storage designs for portable consumer electronics products. With eMMC, a host system can now gain access to all major classes of mass-storage memory subsystems, including embedded memory (eMMC), memory cards or even hard disk drives (via ATA-on-MMC specification) with one common MMC Interface Protocol Bus.

The standardized eMMC protocol interface offers designers high performance and makes technology complexity -- such as NAND Flash functional differences among suppliers -- invisible to the host. This differs from the conventional architecture, where a host system must contend with generational process geometry shrinks and technical complexities such as Multi-Level Cell (MLC) technology while supporting the company-specific functions of individual flash memory suppliers to achieve the necessary performance.

The benefits of eMMC to host manufacturers are a simpler product design and qualification process and shorter time to market overall.