SanDisk SDSDB-016G-A11 - Memory Array Partitioning

Chapter 1 – Introduction
Revision 2.2 SanDisk SD Card Product Manual
© 2004 SanDisk Corporation 1-7 12/08/04
Figure 1-2 Memory Array Partitioning
Table 1-1 Memory Array Structures Summary
1
Part No. Block
Size
(Bytes)
Data Area +
Protected size
(Blocks)
Protected Area
2
size
(Blocks)
User Area
(Blocks0
SDSDH-2048 512 4,011,520 40,448 3,971,072
SDSDJ-2048 512 4,011,520 40,448 3,971,072
SDSDX3-1024 512 2,004,480 20,480 1,984,000
SDSDH-1024 512 2,004,480 20,480 1,984,000
SDSDJ-1024 512 2,004,480 20,480 1,984,000
SDSDH-512 512 1,001,216 10,240 990,976
SDSDJ-512 512 1,001,216 10,240 990,976
SDSDH-256 512 499,456 5,376 494,080
SDSDJ-256 512 499,456 5,376 494,080
SDSDJ-128 512 248,640 2,624 246,016
SDSDJ-64 512 123,232 1,376 121,856
1
All measurements are in units per card.
2
The part of the card that relates to the secured copyright management and has separate DOS partitioning
including sectors and blocks. The card write-protection mechanism does not affect this area.
SanDisk SD Memory Card
Sector 1
Sector 2
Sector 3
Sector n
WP Group 0
Bloc
k 0
Bloc
k 1
Bloc
k 2
Bloc
k n
WP Group 1
WP Group 2
Sector 1
Sector n
Protected Area (Copyright Protection)
Bloc
k 0
Bloc
k 1
Bloc
k 2
Bloc
k n