SanDisk SDSDH-1024 Product Manual - Page 11

Memory Array Partitioning, Table 1-1, Memory Array Structures Summary

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Revision 2.2 Figure 1-2 Chapter 1 - Introduction SanDisk SD Card Product Manual Memory Array Partitioning SanDisk SD Memory Card WP Group 0 Sector 1 Bloc Bloc Bloc Bloc k0 k1 k2 kn Sector 2 Sector 3 Sector n WP Group 1 WP Group 2 Protected Area (Copyright Protection) Sector 1 Bloc Bloc Bloc Bloc k0 k1 k2 kn Sector n Table 1-1 Part No. SDSDH-2048 SDSDJ-2048 SDSDX3-1024 SDSDH-1024 SDSDJ-1024 SDSDH-512 SDSDJ-512 SDSDH-256 SDSDJ-256 SDSDJ-128 SDSDJ-64 Memory Array Structures Summary1 Block Size (Bytes) Data Area + Protected size (Blocks) Protected Area2 size (Blocks) 512 4,011,520 40,448 512 4,011,520 40,448 512 2,004,480 20,480 512 2,004,480 20,480 512 2,004,480 512 1,001,216 512 1,001,216 512 499,456 512 499,456 512 248,640 512 123,232 20,480 10,240 10,240 5,376 5,376 2,624 1,376 User Area (Blocks0 3,971,072 3,971,072 1,984,000 1,984,000 1,984,000 990,976 990,976 494,080 494,080 246,016 121,856 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. © 2004 SanDisk Corporation 1-7 12/08/04

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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