USB2504 Datasheet, PDF (32/42 Pages) SMSC Corporation – INTEGRATED USB2.0 COMPATIBLE 4 - PORT HUB

USB2504/USB2504A
8.0 DC PARAMETERS
8.1 Maximum Ratings
Parameter
Symbol MIN
Storage
T_A
-55
Temperature
Lead
Temperature
1.8V supply
voltage
V_DDA18PLL
V_DD18
-0.5
3.3V supply
voltage
V_DDA33
V_DDA33PLL
V_DD33
-0.5
Voltage on any
-0.5
I/O pin
Voltage on
-0.5
XTAL1
Voltage on
-0.5
XTAL2
MAX
150
325
2.5
4.0
(3.3V supply voltage + 2) 6
4.0
V_DD18 + 0.3V
Units
°C
°C
V
V
V
V
V
Comments
Soldering < 10 seconds
Note:
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.
8.2 Recommended Operating Conditions
Parameter
Symbol
Operating Temperature
1.8V supply voltage
3.3V supply voltage
T_A
V_DDA18PLL
V_DD18
V_DDA33
V_DDA33PLL
V_DD33
MIN
0
1.71
3.0
MAX
70
1.98
3.6
Voltage on any I/O pin
-0.3
5.5
Voltage on XTAL1
Voltage on XTAL2
-0.3
V_DDA33
-0.3
V_DD18
Units
°C
V
V
Comments
V If any 3.3V supply voltage drops
below 3.0V, then the MAX
becomes:
(3.3V supply voltage + 0.5)
V
V
DS000002250A-page 32
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