USB-Disk Module
Ⅱ
AP-UMxxxxXXXXG-XXXX
RoHS Compliant
USB-Disk Module
Ⅱ
Specification
April 23, 2009
Version 1.5
Apacer Technology Inc.
4 Fl., 75 Xintai 5 Rd., Sec.1, Hsichih, Taipei Hsien 221, Taiwan
Tel: +886-2-2698-2888
www.apacer.com
Fax: +886-2-2698-2889
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© 2009 Apacer Technology, Inc.
Rev.
1.5
USB-Disk Module
Ⅱ
AP-UMxxxxXXXXG-XXXX
FEATURES:
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•
USB2.0 High-Speed and USB1.1 Full-
Speed compatible interface
Capacity
– 256, 512 MB
– 1, 2, 4, 8 GB
Fast sustained read performance
– Sustained read: 30 MB/s
Fast sustained write performance
– Sustained write: 20 MB/s
Intelligent USB Module
– Implements dynamic wear-leveling
algorithms to substantially increase
longevity of flash media
– BCH (6/12 bit) Error Detection Code/Error
Correction Code (EDC/ECC)
– Intrinsic data integrity after power loss
– Wear leveling algorithm that provides more
reliable data storage over an extended
period
Extended Data Protection (Optional)
– Write protection setting by jumper for
prevention of data overwrites.
Please order NR type. Only support Standard Temperature 2GB, 4GB, 8GB capacity
Extended Temperature
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•
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Zero Power Data Retention
– Batteries not required for data storage
Support Ready Boost for Windows Vista
Support boot-up function for OS
– Windows XP Embedded
– Windows CE
– Linux
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– Windows XP Professional
Temperature ranges
– 0° to 70° for operation (standard)
C
C
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– -40° to 85° for operation (ET )
C
C
– -40° to 100° for storage
C
C
Low power consumption (typical)
– Active mode: 110 mA
– Sleep mode: 450
μA
Connector
– 10-pin (2x5) female header
RoHS Compliant
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© 2009 Apacer Technology, Inc.
Rev.
1.5
USB-Disk Module
Ⅱ
AP-UMxxxxXXXXG-XXXX
TABLE OF CONTENTS
1. General Description ..............................................................................4
1.1 Performance-optimized Controller....................................................................................................... 4
1.1.1 Power Management Unit (PMU) ...................................................................................................................4
1.1.2 SRAM Buffer .................................................................................................................................................4
1.1.3 Error Correction Code (ECC) ........................................................................................................................4
1.1.4 Wear-Leveling ...............................................................................................................................................4
1.1.5 Write Protection Mode (Optional) ..................................................................................................................4
2. Functional Block Diagram.....................................................................5
3. Pin Assignment......................................................................................6
3.1 Type A, Type B, Type C, and Type E.................................................................................................. 6
3.2 Type D﹙STD﹚................................................................................................................................... 7
3.3 Type D﹙LP﹚ ..................................................................................................................................... 8
4. Capacity Specifications ........................................................................9
4.1 Functional Specifications..................................................................................................................... 9
4.2 Environmental Specifications .............................................................................................................. 9
5. Electrical Specification ......................................................................10
6. Physical Dimension .............................................................................11
6.1 Horizontal Design .............................................................................................................................. 11
6.1.1 Type A (STD 90D)......................................................................................................................................11
6.1.2 Type B (STD 90D-MH) ...............................................................................................................................12
6.1.3 Type C (STD 90D-MS) ...............................................................................................................................13
6.2 Vertical Design .................................................................................................................................. 14
6.2.1 Type D (STD 180D)....................................................................................................................................14
6.3 Low Profile Design............................................................................................................................. 15
6.3.1 Type D (LP 180D) .......................................................................................................................................15
6.3.2 Type E (LP 90D-MS) ...................................................................................................................................16
7. Product Ordering Information.............................................................17
7.1 Product Code Designation ................................................................................................................ 17
7.2 Valid Combinations............................................................................................................................ 18
7.2.1 Type A
7.2.2 Type B
7.2.3 Type C
7.2.4 Type D
7.2.5 Type D
7.2.6 Type E
(STD 90D)......................................................................................................................................18
(STD 90D-MH) ...............................................................................................................................18
(STD 90D-MS) ...............................................................................................................................18
(STD 180D)....................................................................................................................................19
(LP 180D) ......................................................................................................................................19
(LP 90D-MS) ..................................................................................................................................19
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© 2009 Apacer Technology, Inc.
Rev.
1.5
USB-Disk Module
Ⅱ
AP-UMxxxxXXXXG-XXXX
1. General Description
Apacer’s USB-Disk Module (UDM) is a high performance, embedded solid state drive (SSD) designed to
replace a conventional IDE hard disk drive. UDM SSD can be plugged into a standard Embedded USB
connector commonly found in desktops, portable PC systems and industrial PC systems. This product is
well suited for embedded flash storage applications offering new and expanded functionality as well as
more cost-effective designs, better performance and increased reliability.
1.1 Performance-optimized Controller
The heart of an UDM is the USB controller, which translates standard USB signals into the data and
controls of the flash media. This proprietary USB controller is specifically designed to attain high data
throughput from host to flash.
1.1.1 Power Management Unit (PMU)
The power management unit (PMU) controls the power consumption of the UDM. It can dramatically
extend product battery life by leaving the idle part of the circuitry into sleep mode. The PMU has zero
wake-up latency.
1.1.2 SRAM Buffer
The SRAM buffer is a key contributor to the USB controller performance. It optimizes data writes to the
flash.
1.1.3 Error Correction Code (ECC)
The UDM uses BCH Error Detection Code (EDC) and Error Correction Code (ECC) algorithms which
correct up to 6/12 random single-bit errors for each 512-byte block of data depending on spare area of
flash memory. High performance is achieved through hardware-based error detection and correction.
1.1.4 Wear-Leveling
Flash memory can be erased a limited number of times, This number is called the erase cycle limit, or
write endurance limit, The erase cycle limit applies to each individual erase block in the flash device.
In a typical application, and especially if a file system is used, specific pages are constantly updated (e.g.,
the page that contains the FAT, registry, etc.). Without any special handling, these pages would wear out
more rapidly than other pages, reducing the lifetime of the entire flash.
To overcome this inherent deficiency, Apacer’s USB-Disk Module (UDM) uses wear-leveling algorithm.
This wear-leveling algorithm ensures that consecutive writes of a specific sector are not written physically
to the same page in the flash. This spreads flash media usage evenly across all pages, thereby
maximizing flash lifetime.
The wear-leveling mechanism provides more than 100,000 write/erase cycles for reliable data storage
over an extended period.
1.1.5 Write Protection Mode (Optional)
When the device is configured to the Write-Protection mode, it enhances the data security and protection.
This feature prevents the stored data from inadvertent system writes or erases, and viruses.
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© 2009 Apacer Technology, Inc.
Rev.
1.5
USB-Disk Module
Ⅱ
AP-UMxxxxXXXXG-XXXX
2. Functional Block Diagram
The USB-Disk Module (UDM) contains a controller, embedded firmware, and Flash Media with a female
connector. The UDM interfaces with the host system allowing data to be written to and read from the
Flash Media.
Flash
Media
Host
USB Interface
Flash
Management
Controller
Flash
Media
Figure 2-1:
Functional block diagram
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© 2009 Apacer Technology, Inc.
Rev.
1.5
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