SanDisk
®
microSD™, microSDHC™
and microSDXC™
OEM Product Manual
Revision 2.6
Document No. 80-36-03335
July 2012
SanDisk Corporation
Corporate Headquarters • 601 McCarthy Blvd. • Milpitas, CA 95035
Phone (408) 801-1000 • Fax (408) 801-8657
www.sandisk.com
July 2012, Version 2.6. © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure
agreements
SanDisk microSD™, microSDHC™ and microSDXC™ cards
OEM Product Manual
2.6
Products, samples and prototypes are subject to update and change for technological and manufacturing
purposes.
SanDisk Corporation general policy does not recommend the use of its products in life support applications
wherein a failure or malfunction of the product may directly threaten life or injury. Without limitation to the
foregoing, SanDisk shall not be liable for any loss, injury or damage caused by use of its products in any of
the following applications:
Special applications such as military related equipment, nuclear reactor control, and aerospace
Control devices for automotive vehicles, train, ship and traffic equipment
Safety system for disaster prevention and crime prevention
Medical-related equipment including medical measurement device
Accordingly, in any use of SanDisk products in life support systems or other applications where failure
could cause damage, injury or loss of life, the products should only be incorporated in systems designed
with appropriate redundancy, fault tolerant or back-up features. Per SanDisk Terms and Conditions of
Sale, the user of SanDisk products in life support or other such applications assumes all risk of such use
and agrees to indemnify, defend and hold harmless SanDisk Corporation and its affiliates against all
damages.
Security safeguards, by their nature, are capable of circumvention. SanDisk cannot, and does not,
guarantee that data will not be accessed by unauthorized persons, and SanDisk disclaims any warranties
to that effect to the fullest extent permitted by law.
This document and related material is for information use only and is subject to change without prior notice.
SanDisk Corporation assumes no responsibility for any errors that may appear in this document or related
material, nor for any damages or claims resulting from the furnishing, performance or use of this document
or related material. SanDisk Corporation explicitly disclaims any express and implied warranties and
indemnities of any kind that may or could be associated with this document and related material, and any
user of this document or related material agrees to such disclaimer as a precondition to receipt and usage
hereof. EACH USER OF THIS DOCUMENT EXPRESSLY WAIVES ALL GUARANTIES AND
WARRANTIES OF ANY KIND ASSOCIATED WITH THIS DOCUMENT AND/OR RELATED MATERIALS,
WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR INFRINGEMENT,
TOGETHER WITH ANY LIABILITY OF SANDISK CORPORATION AND ITS AFFILIATES UNDER ANY
CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR
LOSS OF USE, REVENUE, OR PROFIT OR OTHER INCIDENTAL, PUNITIVE, INDIRECT, SPECIAL OR
CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION PHYSICAL INJURY OR DEATH,
PROPERTY DAMAGE, LOST DATA, OR COSTS OF PROCUREMENT OF SUBSTITUTE GOODS,
TECHNOLOGY OR SERVICES.
No part of this document may be reproduced, transmitted, transcribed, stored in a retrievable manner or
translated into any language or computer language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual or otherwise, without the prior written consent of an officer of SanDisk
Corporation.
All parts of the SanDisk documentation are protected by copyright law and all rights are reserved.
SanDisk and the SanDisk logo are trademarks of SanDisk Corporation, registered in the United States and
other countries. SD, microSD, microSDHC and microSDXC marks and logos are trademarks of SD-3C,
LLC. All other brand names mentioned herein are for identification purposes only and may be the
trademarks of their respective holder(s).
© 2012 SanDisk Corporation. All rights reserved.
Document No. 80-36-03335 Rev 2.6
July 2012 Version 2.6 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements
i
SanDisk microSD™, microSDHC™ and microSDXC™ cards
OEM Product Manual
2.6
Revision History
Date
July 2008
Revision
1.0
Description
First Revision
Added 32 GB
Replaced SD 2.0 with SD 3.0
ACMD41 to ready after power up updated
Updated marking, section 5
Updated Tables 7, 9, and 11 to remove < 1G references
Updated Figure 1 – SD card block diagram
Added speed class to Ordering Information Table
Added 64GB and updated SDA 3.0 to SD3.UHS-I 50
Added SDSDQAC SKUs to Ordering Information.
Updated Figure 7 to add High Performance figure.
Added Ordering Information.
Reference to SDA corrections. Added SDSDQAD SKUs to
Ordering Information
Marking info updated with alternate laser marking guide and
Premier microSD product marking info
June 2010
2.0
March 2011
April 2011
October 2011
November 2011
January 2012
July 2012
2.1
2.2
2.3
2.4
2.5
2.6
July 2012 Version 2.6 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements
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SanDisk microSD™, microSDHC™ and microSDXC™ cards
OEM Product Manual
2.6
Table of Contents
1
Introduction .......................................................................................... 1
1.1 General Description ........................................................................ 1
1.2 Features ........................................................................................ 2
1.3 Scope ........................................................................................... 2
1.4 SD Card Standard .......................................................................... 2
1.5 Functional Description ..................................................................... 3
1.5.1 Technology Independence ..................................................... 3
1.5.2 Defect and Error Management ............................................... 3
1.5.3 Content Protection................................................................ 3
1.5.4 Wear Leveling ...................................................................... 3
1.5.5 Automatic Sleep Mode .......................................................... 3
1.5.6 Hot Insertion ....................................................................... 4
1.6 microSD Card Products in SD Bus Mode ............................................ 4
1.7 SPI Mode ....................................................................................... 6
2
Product Specifications ............................................................................ 7
2.1 microSD Card Product Family ........................................................... 7
2.1.1 Typical Card Power Requirements ........................................... 7
2.1.2 System Performance............................................................. 8
2.1.3 Reliability and Durability ....................................................... 9
2.1.4 Physical Specifications .......................................................... 9
3
Interface Description ............................................................................ 10
3.1 Pins and Registers ........................................................................ 10
3.2 Bus Topology ............................................................................... 11
3.2.1 SD Bus ............................................................................. 11
3.2.2 SPI Bus ............................................................................. 11
3.3 Hot Insertion and Power Protection ................................................. 11
3.4 Electrical Interface ........................................................................ 11
3.4.1 Power Up .......................................................................... 11
3.4.2 Bus Operating Conditions .................................................... 12
3.4.3 Bus Timing ........................................................................ 12
3.5 microSD Card Product Family Registers ........................................... 12
3.5.1 Operation Conditions Register .............................................. 12
3.5.2 Card Identification Register ................................................. 12
3.5.3 Card Specific Data Register ................................................. 13
3.5.4 Card Status Register ........................................................... 15
3.5.5 SD Status Register ............................................................. 16
3.5.6 Relative Card Address Register ............................................ 16
3.5.7 SD Card Configuration Register ............................................ 16
3.5.8 microSD Card Product Family Registers in SPI Mode ............... 16
3.5.9 Data Interchange Format and Card Sizes .............................. 16
4
microSD Card Protocol Description ......................................................... 17
4.1 General Description ...................................................................... 17
4.2 SD Bus Protocol ........................................................................... 17
4.3 Functional Description ................................................................... 17
July 2012 Version 2.6 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements
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SanDisk microSD™, microSDHC™ and microSDXC™ cards
OEM Product Manual
2.6
4.3.1 Card Identification Mode ..................................................... 17
4.3.2 Data Transfer Mode ............................................................ 17
4.3.3 Clock Control ..................................................................... 18
4.3.4 Cyclic Redundancy Codes .................................................... 18
4.3.5 Error Conditions ................................................................. 18
4.3.6 Commands ........................................................................ 18
4.3.7 Card State Transition .......................................................... 18
4.3.8 Timing Diagrams and Values................................................ 18
4.3.9 Speed Class Specification .................................................... 18
4.3.10 Erase Timeout Calculation ................................................... 18
5
6
Marking .............................................................................................. 19
Ordering Information ........................................................................... 21
July 2012 Version 2.6 © 2008 - 2012 SanDisk Corporation. SanDisk Confidential, subject to all applicable non-disclosure agreements
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