USB Flash Drive
U273 series
USB Flash Disk
Revision History
Revision
Ver1.0
Ver.1.0
Date
04/08 ‘09
History
Remark
New Creation
1/5
Aug 2008
USB Flash Drive
1. Introduction to U273
The new U273 series with the light, refined and stylish features that gives you portability and security to offer you
a peace of mind. The no loss cap design can simply snap onto the flash drive when using it and searching for
lost caps will be a thing of the past. Mini metallic housing with high memory capacity. Compatible with USB 2.0 /
1.1 specifications with low power consumption and data protection.
2. Main Features Overview
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The no loss cap design, Simple and stylish
Metallic Housing with High Memory Capacity
Mobile USB flash drive, USB 2.0 compatible
Hot swappable, USB Plug & Play compatible
Light and easy to carry
Can use strap
Lid will fill perfectly onto the end of the drive
3. Product Specification
USB Interface
High-speed USB 2.0 interface; backward compatible with USB 1.1
NAND Flash Interface
Integrated ECC circuits for 4-bit error correction
OS Support
No drive is required for Windows ME, 2000, XP, Vista or Mac OS 9.x
Environment
Operating
0℃~65℃
Non-Operating
-25℃~75℃
Operating
0.2G
Non-Operating
15G
Operating
150G
Temperature
Vibration
Shock resistant
Non-Operating
1000G
Configuration
Capacity
128Mbytes~32GBytes
Reliability
MTBF(@25℃)
1,000,000 hours
Power Requirement
Voltage
5V
Power Consumption
Read
<100mA
Write
<120mA
Standby
<100mA
Un-configuration
<100mA
Suspend
<1.5mA
Important!! Please make sure the driver matches the part number on your pen drive before you download.
Software AP System Requirements. One of following operation systems: Windows 98/98SE/Windows ME/Windows 2000/Windows XP/Vista
The advertised memory capacity of this device represents unformatted capacity. Please note that once formatted and due to variations in flash
module block limitations, the functional storage space will be lower than the advertised capacity.
“PQI reserves the right to make changes without notification when fit, form, function, quality and reliability are not affected. The data sheets do
not constitute contract documents and should not be considered part of the specification for purposes of any warranty.”
Ver.1.0
2/5
Aug 2008
USB Flash Drive
4. Block Diagram
5. Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
VDDH
VIN
VOUT
TSTG
Power Supply
-0.3 to VDDH +0.3
Input Signal Voltage
-0.3 to 3.6
Output Signal Voltage
-0.3 to VDDH +0.3
V
V
V
Storage Temperature
-40 to 150
℃
Ver.1.0
3/5
Aug 2008
USB Flash Drive
6. DC Characteristics
Symbol
Parameter
Conditions
Min.
Typical
Max.
Units
IIN
Input current
No pull-up or
pull-down
-10
±1
10
uA
IOZ
Tri-state leakage current
-10
±1
10
uA
CIN
Input capacitance
Pad Limit
2.8
pF
COUT
Output capacitance
Pad Limit
2.8
pF
CBID
Bi-directional buffer capacitance
Pad Limit
2.8
pF
7. Recommended Operating Conditions
Symbol
Parameter
Min.
Typical
Max.
Units
ADD
5V Power Supply
4.75
5.0
5.0
V
VDDH
Power Supply
3.0
3.3
3.6
V
VDD
Digital Supply
1.62
1.8
1.98
V
VIN
Input Signal Voltage
0
3.3
3.6
V
TOPR
Operating Temperature
0
70
℃
8. Pin Assignments
Pin No.
Pin Name
Function
1
VCC
USB power input
2
USB D-
USB differential signal
3
USB D+
The pairs are used to transmit Data/Address/Command
4
VSS
Ground
Ver.1.0
4/5
Aug 2008
USB Flash Drive
9. Physical Specifications
9.1 Dimensions:
9.1.1 Height:
46.1mm
9.1.2 Width:
17.2 mm
9.1.3 Depth:
8.60 mm
9.1.4 Weight: 7g ± 0.5 g
9.2 Outline of top view
Ver.1.0
5/5
Aug 2008
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