Serial ATA Flash Drive

APS1845xxxx-ACMX

4

© 2011 Apacer Technology Inc.

Rev. 1.1

1.3

ATA Mode Support

SAFD18S4-M provides ATA mode support as follows:

Up to PIO mode-4

Up to Multiword DMA mode-2

Up to UDMA mode-5

1.4

Capacity Specification

Capacity specification of SAFD18S4-M product family is available as shown in Table 1-1. It lists the specific

capacity, the default numbers of logical cylinders and heads, and the number of logical sectors per track for

each product line.

Table 1-1 Capacity specification

Capacity

Total Bytes*

Cylinders

Heads

Sectors

Max LBA*

8 GB

7,012,196,352

15,334

16

63

13,695,696

16 GB

16,013,942,784

16,383

16

63

31,277,232

32 GB

32,017,047,552

16,383

16

63

62,533,296

64 GB

63,351,106,560

16,383

16

63

123,732,736

128 GB

126,718,663,680

16,383

16

63

247,497,451

*Display of total bytes varies from file systems.

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

1.5

Performance

Performance of SAFD18S4-M is shown in Table 1-2.

Table 1-2 Performance specification

Capacity

Performance

8 GB

16 GB

32 GB

64 GB

128 GB

Sustained Read

(MB/s)

110

125

135

155

145

Sustained Write

(MB/s)

26

26

38

80

80

Note: Performance varies from flash configurations.