SATA-Disk Module 4

APSDMxxxxX5AN-AXXX

7

© 2012 Apacer Technology Inc.

Rev. 1.1

4. Capacity Specification

Capacity specification of SDM4 product family is available as shown in Table 4-1. It lists the specific

capacity and the default numbers of heads, sectors and cylinders for each product line.

Table 4-1: Capacity specifications

Capacity

Total bytes*

Cylinders

Heads

Sectors

Max LBA

1 GB

1,011,032,064

1,959

16

63

1,974,672

2 GB

2,011,226,112

3,897

16

63

3,928,176

4 GB

4,011,614,208

7,773

16

63

7,835,184

8 GB

8,012,390,400

15,525

16

63

15,649,200

16 GB

16,013,942,784

16,383

16

63

31,277,232

*Display of total bytes varies from file systems. which means not all of the bytes can be used for storage.

**Cylinders, heads or sectors are not applicable for these capacities. Only LBA addressing applies.

4.1 Performance Specification

4.1.1 ATA Mode Support

SDM4 supports the following ATA operating modes:



Supports up to PIO Mode-4



Supports up to Multi-word DMA Mode-2



Supports up to Ultra DMA Mode-5

4.1.2 Performance

Performances of SDM4 are listed below in table 4-2.

Table 4-2: Performance (Typical)

Capacity

Performance

1 GB

2 GB

4 GB

8 GB

16 GB

Sustained read (MB/s)

38

43

43

43

43

Sustained write (MB/s)

12

24

24

41

42

Note: Results may differ from various flash configurations.