SMSC switch USB2504 Manual

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46 Pages English

SMSC switch USB2504
Integrated USB 2.0 Compatible 4-Port Hub
Datasheet
Revision 2.3 (08-27-07) 42 SMSC USB2504/USB2504A
DATASHEET
8.2 Recommended Operating Conditions
PARAMETER SYMBOL MIN MAX UNITS COMMENTS
Operating
Temperature
T
A
070°C
1.8V supply voltage V
DDA18PLL
V
DD18
1.71 1.98 V
3.3V supply voltage V
DDA33
V
DDA33PLL
V
DD33
3.0 3.6 V
Voltage on any I/O pin -0.3 5.5 V If any 3.3V supply voltage drops
below 3.0V, then the MAX
becomes:
(3.3V supply voltage + 0.5)
Voltage on XTAL1 -0.3 V
DDA33
V
Voltage on XTAL2 -0.3 V
DD18
V
Table 8.1 DC Electrical Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS
I, IS Type Input Buffer
Low Input Level
High Input Level
Input Leakage
Hysteresis (‘IS’ Only)
V
ILI
V
IHI
I
IL
V
HYSI
2.0
-10
250 300
0.8
+10
350
V
V
uA
mV
TTL Levels
V
IN
= 0 to V
DD33
Input Buffer with Pull-Up
(IPU)
Low Input Level
High Input Level
Low Input Leakage
High Input Leakage
V
ILI
V
IHI
I
ILL
I
IHL
2.0
+26
-10
0.8
+72
+10
V
V
uA
uA
TTL Levels
V
IN
= 0
V
IN
= V
DD33
Input Buffer with Pull-Down
IPD
Low Input Level
High Input Level
Low Input Leakage
High Input Leakage
V
ILI
V
IHI
I
ILL
I
IHL
2.0
+10
-22
0.8
-10
-82
V
V
uA
uA
TTL Levels
V
IN
= 0
V
IN
= V
DD33
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