t t t s s s 4 4 4 g g g j j j f f f v v v 9 9 9 0 0 0 q q q 4gb usb2.0 jetflash ? v90q transcend information inc. 1 description TS4GJFV90Q is a 4gb usb flash drive with 2pcs of 2gx8 flash memory assembled by chip on board process. outline features ? usb interface: compliant with usb specification 2.0 . ? pc-lock function: makes jetflash? a key to lock you r computer ? secret-zip function: compress and/or password prote ct saved files using aes encryption ? e-mail function: use your jetflash? to securely sen d, receive and save e-mails ? autologin function: automatically login to websites where you have a password ? favorites function: store all your favorite website addresses on the jetflash? ? databackup function: backup, restore and synchroniz e your data using the jetflash? ? no external power or battery needed dimensions side millimeters inches a 33.8 0.15 1.33 0.006 b 4.5 0.15 0.18 0.006 c 13.1 0.15 0.52 0.006
t t t s s s 4 4 4 g g g j j j f f f v v v 9 9 9 0 0 0 q q q 4gb usb2.0 jetflash ? v90q transcend information inc. 2 pinouts pin no. pin name pin identification symbol function 01 vcc 02 usb- 03 usb+ 04 vss usb- usb+ usb differential signal: the pairs are used to transmit data/address/command vss ground vcc usb power input specifications storage capacity 4gb data retention 10 years erase cycles >10,000 times connector durability 10,000 times system performance read: 18mb/sec (max.), write: 5mb/sec (max.) power supply dc 5v 10% via the usb port temperature range operation: 0-70 o c, non-operating: -40 o c-85 o c weight 7g certificates ce, fcc, bsmi
t t t s s s 4 4 4 g g g j j j f f f v v v 9 9 9 0 0 0 q q q 4gb usb2.0 jetflash ? v90q transcend information inc. 3 absolute maximum ratings symbol parameter rating unit v cc power supply 4.5 to 5.5 v v in input voltage 3.0 to 3.6 v dc characteristics: symbol parameter min. typ. max. units i il input leakage current (no pull-up or pull-down) -10 10 a i oz tri-state leakage current -10 10 a v il input low voltage 0.8 v v ih input high voltage 2.0 v v ol output low voltage (i ol =4ma) 0.4 v v oh output high voltage (i oh =4ma) 2.4 v r pu input pull-up resistance ( pu=high, pd=low) 55 75 110 k r pd input pull-down resistance ( pu=low, pd=high) 40 75 150 k i act active current 55 ma i slp sleep current 120 a recommended operating conditions symbol parameter min. typ. max. units v cc power supply voltage 4.5 5 5.5 v v in input voltage 3 3.3 3.6 v v cc18 internal power supply 1.62 1.8 1.98 v above technical information is based on industry st andard data and tested to be reliable. however, tra nscend makes no warranty, either expressed or implied, as to its ac curacy and assumes no liability in connection with the use of this product. transcend reserves the right to make changes in spe cifications at any time without prior notice.
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