Technical document on the MultiMediaCard (MMC) memory card, in a 1.70 MB PDF. The name gives only the card type, without a manufacturer or revision. Such documents usually describe the card's pinout, the MMC and SPI bus modes, command set, registers and electrical characteristics. Technicians and embedded developers use it when debugging card slots, checking signal lines and pull-ups, or writing low-level drivers. Confirm which specification version the document covers, since later MMC revisions added bus widths and commands.
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