M-Systems Flash Disk Pioneers Flash Disk Critical Item Definition, Characteristics, Performance

1.SPECIFICATIONS

1.1. Critical Item Definition

The dimensions of the IDE 4000 flash disk enable mounting in a standard 2.5”or 1.8” disk drive bay, as described in Section 1.2.11.

Note: The information written in this document refers to both IDE 4000 2.5” and 1.8” unless otherwise stated.

1.2. Characteristics

1.2.1.Interface Definition

The IDE 4000 supports the commands listed in Section 4, in compliance with ATA4 standards.

1.2.2.IDE Transfer Modes

The IDE 4000 supports the following transfer modes:

•PIO modes 0 through 4

•DMA modes 0 through 2

1.2.3.Performance

The IDE 4000 complies with the performance requirements described in Table 1.

Table 1: IDE 4000 Transfer Rates

Operation	Burst Rate (MB/sec)	Sustained Rate (MB/sec)
Read	16.6	3.8
Write	16.6	3.4

Performance was measured on a system with the following configuration:

•Computer with ASUS P4T533-C motherboard and Intel 2.4 GHz processor

•Windows XP Professional operating system

•IDE transfer mode: Multiword DMA 2

•IDE 4000 disk capacity: 4GB

The HDTACH v2.61 benchmark utility was used to measure IDE 4000 performance. See Figure 1 for measurement results.

5 Product Specification and User Manual IDE 4000 Flash Disk 34-PS-0304-00 Rev. 2.1