SMSC USB2242 Manual De Usuario

Ultra Fast USB 2.0 Memory Stick Flash Media Controller

Revision 1.0 (05-27-08)

16

SMSC USB2242/USB2242i

Stresses above the specified parameters may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at any condition above
those indicated in the operation sections of this specification is not implied. 

When powering this device from laboratory or system power supplies, it is important that
the Absolute Maximum Ratings not be exceeded or device failure can result. Some power
supplies exhibit voltage spikes on their outputs when the AC power is switched on or off.
In addition, voltage transients on the AC power line may appear on the DC output. When
this possibility exists, it is suggested that a clamp circuit be used.

Storage 
Temperature

T

A

-55

150

°C

Lead 
Temperature

325

°C

Soldering < 10 seconds

3.3V supply 
voltage

V

DD33, 

V

DDA33

-0.5

4.0

V

Voltage on 
USB+ and 
USB- pins

-0.5

(3.3V supply voltage + 2) 

≤ 6

V

Voltage on 
GPIO10

-0.5

V

DD33

 + 0.3

V

When internal power FET 
operation of this pin is enabled, 
this pin may be simultaneously 
shorted to ground or any 
voltage up to 3.63V indefinitely, 
without damage to the device 
as long as V

DD33

 and V

DDA33

 

are less than 3.63V and T

A

 is 

less than 70

o

C.

Voltage on any 
signal pin

-0.5

V

DD33

 + 0.3

V

Voltage on 
XTAL1 

-0.5

4.0

V

Voltage on 
XTAL2

-0.5

V

DD18

 + 0.3

V