RoHS Compliant
USB-Disk Module 3
Specification
January 13, 2011
Preliminary
Apacer Technology Inc.
4 Fl., 75 Xintai 5 Rd., Sec.1, Hsichih, New Taipei City, Taiwan 221
Tel: +886-2-2698-2888
www.apacer.com
Fax: +886-2-2698-2889
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USB-Disk Module 3
AP-UMxxxxXXXXS-MSXXX
FEATURES:
USB2.0 High-Speed and USB1.1 Full-
Speed compatible interface
Capacity
– 512 MB, 1, 2, 4, 8 GB
Fast sustained read performance
– Sustained read: 35 MB/s
Fast sustained write performance
– Sustained write: 25 MB/s
Intelligent USB Module
– BCH (14/28 bit) Error Detection Code/Error
Correction Code (EDC/ECC)
– Intrinsic data integrity after power loss
– Data Encryption
– Implements advanced wear-leveling
algorithms to substantially increase
longevity of flash media
Flash Type:
SLC
Zero Power Data Retention
– Batteries not required for data storage
Support Ready Boost for Windows Vista
Support boot-up function for OS
– Linux
– Windows CE
– Windows XP Embedded
– Windows 7 Embedded
Temperature ranges
– 0° to 70° for operation (standard)
C
C
– -40° to 85° for operation (ET*)
C
C
– -40° to 100° for storage
C
C
Low power consumption (typical)
– Active mode:
TBD
mA
– Sleep mode:
TBD
µA
Connector
– 10-pin (2x5) female header
RoHS Compliant
Support Non-Removable Setting**
*Extended Temperature
**Standard Temperature Exclusive
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© 2011 Apacer Technology, Inc.
Rev.
0.4
USB-Disk Module 3
AP-UMxxxxXXXXS-MSXXX
TABLE OF CONTENTS
1. General Description
..............................................................................3
1.1 Performance-optimized Controller....................................................................................................... 3
1.1.1 Error Correction Code (ECC) ........................................................................................................................3
1.1.2 Data Encryption.............................................................................................................................................3
1.1.3 Advanced Wear-Leveling ..............................................................................................................................3
2. Functional Block Diagram.....................................................................4
3. Pin Assignment......................................................................................5
3.1 Type C and Type E.............................................................................................................................. 5
3.2 Type D (Low Profile)............................................................................................................................ 6
4. Capacity Specifications
........................................................................7
4.1 Performance Specifications................................................................................................................. 7
4.2 Environmental Specifications .............................................................................................................. 7
5. Electrical Specification
........................................................................8
5.1 AC Characteristics............................................................................................................................... 9
6. Physical Dimension
.............................................................................10
6.1 Horizontal Design .............................................................................................................................. 10
6.1.1 Type C (STD 90D-MS) ...............................................................................................................................10
6.2 Low Profile Design............................................................................................................................. 11
6.2.1 Type D (LP 180D) .......................................................................................................................................11
6.2.2 Type E (LP 90D-MS) ...................................................................................................................................12
7. Product Ordering Information............................................................13
7.1 Product Code Designations............................................................................................................... 13
7.2 Valid Combinations............................................................................................................................ 14
7.2.1 Type C (STD 90D-MS) ................................................................................................................................14
7.2.2 Type D (LP 180D) .......................................................................................................................................14
7.2.3 Type E (LP 90D-MS) ...................................................................................................................................14
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© 2011 Apacer Technology, Inc.
Rev.
0.4
USB-Disk Module 3
AP-UMxxxxXXXXS-MSXXX
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 Error Correction Code (ECC)
The UDM uses BCH Error Detection Code (EDC) and Error Correction Code (ECC) algorithms which
correct up to 14/28 random single-bit errors for each 512/1K byte block of data depending on spare area
of flash memory. High performance is achieved through hardware-based error detection and correction.
1.1.2 Data Encryption
The UDM comes with 128 bits AES algorithm realized by hardware which makes it unique in protecting
data store within.
1.1.3 Advanced 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.
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© 2011 Apacer Technology, Inc.
Rev.
0.4
USB-Disk Module 3
AP-UMxxxxXXXXS-MSXXX
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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© 2011 Apacer Technology, Inc.
Rev.
0.4
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