RoHS Compliant
USB
Flash Drive
AH321 Specifications
November 26, 2015
Version 1.9
Apacer Technology Inc.
1F, No.32, Zhongcheng Rd., Tucheng Dist., New Taipei City, Taiwan, R.O.C
Tel: +886-2-2267-8000
Fax: +886-2-2267-2261
www.apacer.com
http://www.apacer.com
http://www.apacer.com
USB Handy Flash Drive
AP-HAxxxXX13XG-XX
FEATURES:
USB2.0 High-Speed and USB1.1 Full-
Speed compatible interface
Capacity
– For SLC: 128, 256, 512 MB
1, 2, 4, 8, 16, 32 GB
– For MLC: 4, 8, 16, 32, 64 GB
Performance*
– Sustained read: up to 34 MB/s
– Sustained write: up to 22 MB/s
Flash Management
– Implements advanced wear-leveling
algorithms to substantially increase
longevity of flash media
– ECC
Temperature Ranges
– Operating:
Standard: 0°C to 70°C
Extended: -40°C to 85°C
– Storage: -40°C to 85°C
Power Consumption (typical)
– Active mode: 185 mA
– Idle mode: 65 mA
– Operating voltage: 5V
RoHS Compliant
Dimensions:
53.30 x 18.80 x 8.00, unit:
㎜
EMC:
FCC, CE
* The results for performance and power consumption addressed here may vary in real world platforms.
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© 2015 Apacer Technology, Inc.
Rev. 1.9
USB Handy Flash Drive
AP-HAxxxXX13XG-XX
Table of Contents
1. General Description .............................................................................. 3
1.1 Performance-optimized USB Controller .............................................................................................. 3
1.1.1 Error Correction Code (ECC) ........................................................................................................ 3
1.1.2 Wear-Leveling ............................................................................................................................... 3
2. General Specifications.......................................................................... 4
2.1 Performance Specifications – SLC ...................................................................................................... 4
2.2 Performance Specifications – MLC ..................................................................................................... 4
3. Electrical Specifications ...................................................................... 5
4. Physical Dimensions ............................................................................. 6
5. Product Ordering Information ............................................................... 7
5.1 Product Code Designations ................................................................................................................. 7
5.2 Valid Combinations .............................................................................................................................. 8
5.2.1 AH322 (SLC)................................................................................................................................. 8
5.2.2 AH322 (MLC) ................................................................................................................................ 8
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© 2015 Apacer Technology, Inc.
Rev. 1.9
USB Handy Flash Drive
AP-HAxxxXX13XG-XX
1. General Description
Apacer’s USB FLASH Drive (UFD) is a high performance flash disk drive designed offering portable
storage solutions. UFDs can be plugged into a standard USB 2.0 connector commonly found in desktops,
portable computers and even enterprise PC systems. Apacer’s UFDs have an efficient built-in
microcontroller and file management firmware that ensures ideal performance, functionality and reliability.
This product is well suited for portable flash storage applications while operating at minimal power
consumption.
1.1 Performance-optimized USB Controller
The heart of an UDM is the USB controller, which translates standard USB signals to the flash media and
controls the data in/out between the controller itself and 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 24 random single-bit errors for each 1024-byte block of data.
1.1.2 Wear-Leveling
Flash memory can be erased a limited number of times. 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 distributes flash media usage evenly across
all pages, thereby maximizing flash lifetime. The wear-leveling mechanism provides write/erase cycles for
reliable data storage over an extended period.
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© 2015 Apacer Technology, Inc.
Rev. 1.9
USB Handy Flash Drive
AP-HAxxxXX13XG-XX
2. General Specifications
Interface
Performance*
Temperature
Shock
EMC
MTBF
High-speed USB2.0 compliant; backward compatible with USB 1.1
SLC: up to 34 MB/s (read); 22 MB/s (write)
MLC: up to 33 MB/s (read); 16 MB/s (write)
0 to 70°C
Half sine wave 40 G, 11ms / Square wave 100 G, 6ms
FCC, CE
2,000,000 hours (SLC) / 1,000,000 (MLC)
*Results may vary from flash configurations or host system settings.
2.1 Performance Specifications – SLC
Capacity
Performance
Sustained read (MB/s)
Sustained write (MB/s)
256 MB
31
10
512 MB
31
15
1 GB
32
19
2 GB
34
19
4 GB
28
21
8 GB
32
15
16 GB
34
22
32 GB
31
21
Note: results may vary depending on flash configurations or host system settings
2.2 Performance Specifications – MLC
Capacity
Performance
Sustained read (MB/s)
Sustained write (MB/s)
4 GB
32
10
8 GB
32
10
16 GB
33
14
32 GB
33
16
64 GB
29
10
Note: results may vary depending on flash configurations or host system settings
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© 2015 Apacer Technology, Inc.
Rev. 1.9
