Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251xB/xBi 47 Revision 2.3 (06-11-13)
DATASHEET
Chapter 6 DC Parameters
6.1 Maximum Guaranteed Ratings
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.
6.2 Operating Conditions
PARAMETER SYMBOL MIN MAX UNITS COMMENTS
Storage
Temperature
T
STOR
-55 150 °C
Lead
Temperature
Refer to JEDEC Specification J-STD-
020D [5]
3.3 V supply
voltage
VDD33
VDDA33
4.6 V Applies to all packages
Voltage on any
I/O pin
-0.5 5.5 V
Voltage on
XTALIN
-0.5 4.0 V
Voltage on
XTALOUT
-0.5 2.5 V
PARAMETER SYMBOL MIN MAX UNITS COMMENTS
Extended Commercial
Operating Temperature
T
AE
0 85 °C Ambient temperature in still air
Industrial
Operating Temperature
T
AI
-40 85 °C Ambient temperature in still air
Only applies to USB251xBi
products
3.3 V supply voltage VDD33
VDDA33
3.0 3.6 V Applies to all parts
3.3 V supply rise time t
RT33
0400μsSee Figure 6.1