USB 2.0 HSIC Hi-Speed 4-Port Hub Controller
Datasheet
9.2
Operating Conditions**
VBAT Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+3.0 V to +5.5 V
VDDCOREREG Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 9.5
Power Supply Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 9.6
Ambient Operating Temperature in Still Air (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 9.7
Note 9.5 +1.6 V to +2.0 V when VDDCOREREG is connected to an external +1.8V power supply,
+3.0 V to +3.6 V when VDDCOREREG is connected to VDD33.
Note 9.6 The power supply rise time requirements vary dependent on the usage of the external
reset (RESET_N). If RESET_N is asserted at power-on, the power supply rise time must
be 10mS or less (tRT(max) = 10mS). If RESET_N is not used at power-on (tied high), the
power supply rise time must be 1mS or less (tRT(max) = 1mS). Higher voltage supplies must
always be at an equal or higher voltage than lower voltage supplies. Figure 9.1 illustrates
the supply rise time requirements.
Note 9.7 0oC to +70oC for commercial version, -40oC to +85oC for industrial version.
**Proper operation of the device is guaranteed only within the ranges specified in this section.
Voltage
VBAT
Voltage
tRT
tRT
3.3V/VBAT
3.3V
1.8V
100%
100%
100%
VBAT
90%
90%
90%
VDDCOREREG
10%
10%
VSS
VSS
t90%
t10%
Single Supply Rise Time Model
t90%
t10%
Dual Supply Rise Time Model
Time
Time
Figure 9.1 Single/Dual Supply Rise Time Models
SMSC USB4604
59
Revision 1.0 (06-17-13)
DATASHEET
SMSC [ SMSC CORPORATION ]
