Apacer Technology AP-UMxxxxXXXXG-XXXX User Manual
RoHS Compliant
USB-Disk Module
AP-UMxxxxXXXXG-XXXX
USB-Disk Module Ⅱ
Ⅱ
ⅡⅡ
Specification
May 5, 2008
Version 1.0
Apacer Technology Inc.
9F, No.100,Hsin Tai Wu Rd. Hsichih, Taipei Hsien 221,Taiwan, R.O.C.
Tel:+886-2-2696-1666 Fax:+886-2-2696-1668
http://www.apacer.com
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© 2008 Apacer Technology, Inc. Rev.
1.0
FEATURES:
USB-Disk Module
AP-UMxxxxXXXXG-XXXX
• USB2.0 High-Speed and USB1.1 FullSpeed compatible interface
• Capacity
– 256, 512MB
– 1, 2, 4, 8GB
• 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
– 4-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.
1. Standard Temperature only
2. Extended Temperature
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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
• Temperature ranges
– 0°C to 70°C for operation (standard)
– -40°C to 85°C for operation (ET
– -40°C to 100°C for storage
• Low power consumption (typical)
– Active mode: 110 mA
– Sleep mode: 450 μA
• Connector
– 10-pin (2x5) female header
• RoHS Compliant
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)
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© 2008 Apacer Technology, Inc. Rev.
1.0
USB-Disk Module
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
4. Capacity Specifications ....................................................................... 7
4.1 Functional Specifications .....................................................................................................................7
4.2 Environmental Specifications...............................................................................................................7
5. Electrical Specification........................................................................ 8
6. Physical Dimension .............................................................................. 9
6.1 Horizontal Design.................................................................................................................................9
6.1.1 Type A (STD 90D) ....................................................................................................................................... 9
6.1.2 Type B (STD 90D-MH) .............................................................................................................................. 10
6.1.3 Type C (STD 90D-MS) .............................................................................................................................. 11
6.2 Vertical Design ...................................................................................................................................12
6.2.1 Type D (STD 180D) ................................................................................................................................... 12
6.3 Low Profile Design .............................................................................................................................13
7. Product Ordering Information ............................................................ 15
7.1 Product Code Designation.................................................................................................................15
7.2 Valid Combinations ............................................................................................................................16
7.2.1 Type A (STD 90D) ..................................................................................................................................... 16
7.2.2 Type B (STD 90D-MH) .............................................................................................................................. 16
7.2.3 Type C (STD 90D-MS) .............................................................................................................................. 16
7.2.4 Type D (STD 180D) ................................................................................................................................... 17
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© 2008 Apacer Technology, Inc. Rev.
1.0
USB-Disk Module
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 four random single-bit errors for each 512-byte block of data. 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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© 2008 Apacer Technology, Inc. Rev.
1.0
USB-Disk Module
Media
Media
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.
Host
USB Interface
Flash
Management
Controller
Figure 2-1: Functional block diagram
Flash
Flash
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© 2008 Apacer Technology, Inc. Rev.
1.0
USB-Disk Module
1 2
3 4
5 6
7 8
9 10
NC
NC
NC
NC
NC
+5
V DC input
USB D
─
USB D
┼
GND
KEY (Blocked)
Connector Pin define
AP-UMxxxxXXXXG-XXXX
3. Pin Assignment
This chapter provides the information on the pin assignments and signal descriptions. Table 3-1 lists the
pin assignments with respective signal names for the 10-pin configuration.
Pin Definition
Table 3-1: Pin Assignment of the 10-pin configuration
Pin Signal Pin Signal
1 +5V 2 N.C
3 USB D- 4 N.C
5 USB D+ 6 N.C
7 GND 8 N.C
9 Key (Blocked) 10 N.C
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© 2008 Apacer Technology, Inc. Rev.
1.0
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