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SDSDAA-008G Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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SDSDAA-008G Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 22 page SanDisk SD Card - OEM Product Manual Introduction 11/2010, Version 2.9. © 2007 - 2010 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements 3 3 1.2 Features General features of cards in the SanDisk SD Card include: SD-protocol compatible Supports SPI Mode Targeted for portable and stationary applications for secured (content protected) and unsecured data storage Voltage range of 2.7 to 3.6V Variable clock rate 0-25 MHz (standard), 0-50 MHz (high performance) . 0-100MHz (Ultra High Speed) Up to 50 MB/sec data transfer rate (using four parallel data lines) Memory field error correction Password protection Write-protection using mechanical switch Built-in write protection features (permanent and temporary) Supports card detection (insertion and removal) Application-specific commands 1.3 Scope This document describes key features and specifications of the SanDisk SD Card as well as the information required to interface this product to a host system. Chapter 2 describes the physical and mechanical properties of cards in the SanDisk SD Card, Chapter 3 contains the pins and register overview, and Chapter 4 gives a general overview of the SD protocol. Information about SPI Protocol can be referenced in Section 7 of the SDA Physical Layer Specification, Version 3.01. 1.4 SD Card Standard SanDisk SD cards are fully compatible with the SDA Physical Layer Specification, Version 3.01. This specification is available from the SD Card Association (SDA). SD Card Association 2400 Camino Ramon, Suite 375 San Ramon, CA 94583 USA Telephone: +1 (925) 275-6615 Fax: +1 (925) 886-4870 E-mail: office@sdcard.org Web site: www.sdcard.org 1.5 Functional Description The family of SanDisk SD cards contains a high-level, intelligent subsystem as shown in Figure 1-1. This intelligent (microprocessor) subsystem provides many capabilities not found in other types of memory cards. These capabilities include: Host independence from details of erasing and programming flash memory Sophisticated system for managing defects (analogous to systems found in magnetic disk drives) Sophisticated system for error recovery including a powerful ECC Power management for low power operation 1.5.1 Technology Independence The 512-byte sector size of a card in the SanDisk SD Card is the same as that in an IDE magnetic disk drive. To write or read a sector (or multiple sectors), the host software simply |
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