USB 2.0 Hi-Speed Hub Controller
Datasheet
Chapter 9 DC Parameters
9.1
Maximum Guaranteed Ratings
SYMBOL
T
STOR
MIN
-55
MAX
150
UNITS
°C
Refer to JEDEC Specification J-STD-
020D.
VDD33
PLLFILT
CRFILT
PARAMETER
Storage
Temperature
Lead
Temperature
3.3 V supply
voltage
Voltage on any
I/O pin
Voltage on
XTALIN
Voltage on
XTALOUT
COMMENTS
4.6
V
Applies to all parts.
-0.5
-0.5
-0.5
5.5
4.0
2.5
V
V
V
Note 9.1
Stresses above the specified parameters could 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.
Note 9.2
9.2
Operating Conditions
PARAMETER
Commercial
Operating
Temperature
Industrial
Operating
Temperature
3.3 V supply voltage
3.3 V supply rise
time
Voltage on any I/O
pin
SYMBOL
T
A
MIN
0
MAX
70
UNITS
°C
COMMENTS
Ambient temperature in still air.
Only applies to USB251x, USB251xA,
and USB251xB products.
Ambient temperature in still air.
Only applies to USB251xi,
USB251xAi, and USB251xBi
products.
Applies to all parts.
See
If any 3.3 V supply voltage drops
below 3.0 V, then the MAX becomes:
(3.3 V supply voltage) + 0.5
T
AI
-40
85
°C
VDD33
3.0
0
-0.3
3.6
400
5.5
V
μs
V
t
RT
Voltage on XTALIN
Revision 1.0 (3-11-09)
-0.3
VDD33
60
V
SMSC USB251x
DATASHEET
SMSC [ SMSC CORPORATION ]
