Serial ATA Flash Drive

APS1845xxxx-AXX

4

© 2011 Apacer Technology Inc.

Rev. 1.0

1.3

ATA Mode Support

SAFD18S4 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 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*

4 GB

3,011,420,160

5,835

16

63

5,881,680

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

64,023,257,088

16,383

16

63

125,045,424

*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 is shown in Table 1-2.

Table 1-2 Performance specification

Capacity

Performance

4 GB

8 GB

16 GB

32 GB

64 GB

Sustained Read

(MB/s)

150

160

160

160

165

Sustained Write

(MB/s)

50

95

95

145

150

Note: Performance varies from flash configurations.