USB2240 Datasheet, PDF (31/43 Pages) SMSC Corporation – Ultra Fast USB 2.0 Multi-Format Flash Media Controller

USB224X
9.0 DC PARAMETERS
9.1 Maximum Ratings
Parameter
Symbol
Storage
T_A
Temperature
Lead
Temperature
3.3 V supply
voltage
V_DD33
Voltage on
USB+ and USB-
pins
Voltage on
CRD_PWR
Voltage on any
signal pin
Voltage on
XTAL1
Voltage on
XTAL2
MIN
-55
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
MAX
150
Units
°C
°C
4.0
V
(3.3 V supply voltage + 2) ≤ 6 V
V_DD33 + 0.3
V
V_DD33 + 0.3
V
3.6
V
V_DD18 + 0.3
V
Comments
Please refer to JEDEC
specification J-STD-020D.
When internal power FET
operation of this pin is enabled,
this pin may be simultaneously
shorted to ground or any voltage
up to 3.63 V indefinitely, without
damage to the device as long as
V_DD33
3.63 V
and
and
VT_{DADiAs3l3esasrethleasns7t0ho}aCn.
Note 9-1
Note 9-2
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.
FIGURE 9-1:
SUPPLY RISE TIME MODEL
Voltage
VDD33
t_RT
3.3 V
100%
90%
10%
VSS
t_10%
t_90%
Time
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DS00001979A-page 31