USB 2.0 Hi-Speed Hub Controller
Datasheet
Chapter 6 DC Parameters
6.1
Maximum Guaranteed Ratings
PARAMETER SYMBOL
Storage
Temperature
TSTOR
Lead
Temperature
3.3 V supply
voltage
VDD33
VDDA33
Voltage on any
I/O pin
Voltage on
XTALIN
Voltage on
XTALOUT
MIN
-55
MAX
150
4.6
-0.5
5.5
-0.5
4.0
-0.5
2.5
UNITS
°C
V
V
V
V
COMMENTS
Refer to JEDEC Specification J-STD-
020D [5]
Applies to all packages
6.2
Notes:
Stresses above the specified parameters could cause permanent damage to the device. This is a
stress rating only. Therefore, functional operation of the device at any condition above those
indicated in the operation sections of this specification are 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.
Operating Conditions
PARAMETER
SYMBOL
MIN
MAX
UNITS
COMMENTS
Extended Commercial TAE
Operating Temperature
Industrial
TAI
Operating Temperature
3.3 V supply voltage
3.3 V supply rise time
VDD33
VDDA33
tRT33
0
85
°C
Ambient temperature in still air
-40
85
°C
Ambient temperature in still air
Only applies to USB251xBi
products
3.0
3.6
V
Applies to all parts
0
400
μs
See Figure 6.1
SMSC USB251xB/xBi
49
DATASHEET
Revision 2.2 (02-17-12)