4-Port USB 2.0 Hub Controller
Datasheet
Revision 1.63 (03-30-07)
Page 12
SMSC USB20H04
DATASHEET
Chapter 5
Limiting Values
Table 5.1 - Absolute Maximum Ratings
(In accordance with the Absolute Maximum Rating system (IEC 60134)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
1.8V Supply Voltage
(VDD1.8 and VDDA1.8)
VDD1.8
-0.5
2.5 V
3.3V Supply Voltage
(VDD3.3 and VDDA3.3)
VDD3.3
-0.5
4.0 V
Voltage on any I/O pin
-0.3
5.5 V
Voltage on XTAL1/CLKIN and
XTAL2
-0.3
3.6 V
Storage Temperature
TSTG
-40
+125 oC
Table 5.2 - Recommended Operating Conditions
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
1.8V Supply Voltage
(VDD1.8 and VDDA1.8)
V
DD1.8
1.74
1.8
2.0
V
3.3V Supply Voltage
(VDD3.3 and VDDA3.3)
V
DD3.3
3.0
3.3
3.6
V
Input Voltage on Digital Pins
V
I
0.0
V
DD3.3
V
Input Voltage on Analog I/O
Pins (DP, DM)
V
I(I/O)
0.0 V
DD3.3
V
Ambient Temperature
T
A
0 +70
o
C
Table 5.3 - Recommended Crystal/External Clock Conditions
PARAMETER SYMBOL CONDITIONS
MIN
TYP
MAX
UNITS
Crystal Frequency
24
(+/- 100ppm)
MHz
External Clock Frequency
24
(+/- 100ppm)
MHz
External Clock Duty Cycle
45
50
55
%
External Clock RMS Jitter
XTAL1/CLKIN driven by the
external clock; no connection
at XTAL2; and CLKIN_EN is
high
100
ps
