SLC Industrial SD/SDHC Card L5ENG00432 Rev. B SLC Industrial Secure Digital (SD/SDHC) Card Engineering Specification Including Products Document Number L5ENG00432 Rev. B No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, mechanical, electronically, chemical, manual, recorded or otherwise without written permission of Delkin Devices. This document is for information use only and is subject to change without prior notice. Delkin Devices assumes no responsibility for any errors that may appear in this document. 2014 Delkin Devices, Inc. 1 SLC Industrial SD/SDHC Card L5ENG00432 Rev. B Table of Contents 1.0 General Description ............................................................................................... 3 1.1 Recommended Temperature Conditions ...................................................................................... 4 1.2 Performance .................................................................................................................................. 4 1.3 Reliability ....................................................................................................................................... 4 1.4 Environmental Characteristics ...................................................................................................... 5 1.5 Part Numbers ................................................................................................................................ 6 1.5.1 SLC Industrial Grade (-40 ~ 85C) Delkin SD cards ............................................................. 6 1.6 Extended Life Cycle (ELC) Family ................................................................................................ 6 1.6.1 ELC Capacities and Part Numbers ....................................................................................... 6 1.7 Card Dimensions ........................................................................................................................... 7 2.0 SD Card Interface .................................................................................................. 8 2.1 SD Pin Assignment ....................................................................................................................... 8 2.2 SD Bus Topology .......................................................................................................................... 9 2.3 SD Bus Mode Protocol .................................................................................................................. 9 2.4 SPI Bus Mode Protocol ............................................................................................................... 10 3.0 SD Card Electrical Characteristics ...................................................................... 12 3.1 Absolute Maximum Conditions .................................................................................................... 12 3.2 DC Characteristics ...................................................................................................................... 12 3.3 AC Characteristics ...................................................................................................................... 15 4.0 Internal Card Information ..................................................................................... 16 4.1 Security Information .................................................................................................................... 16 4.2 SD Card Registers ...................................................................................................................... 16 List of Figures Figure 1. SD card dimensions ......................................................................................... 7 Figure 2. SD card pin designation ................................................................................... 8 Figure 3. SD card (SD mode) connection diagram ........................................................ 10 Figure 4. SD card (SPI mode) connection diagram ....................................................... 11 Figure 5. SD card connection diagram .......................................................................... 12 Figure 6. AC timing diagram .......................................................................................... 15 List of Tables Table 1. SD card pin assignment .................................................................................... 8 Table 2. Standard Secure Digital (SD) DC characteristics ............................................ 13 Table 3. Secure Digital High Capacity (SDHC) DC characteristics ............................... 14 Table 4. Signal capacitance .......................................................................................... 14 Table 5. AC characteristics ........................................................................................... 15 Table 6. SD card Registers ........................................................................................... 16 2014 Delkin Devices, Inc. 2