Datasheet – SMSC USB20H04 User Manual
Page 14
4-Port USB 2.0 Hub Controller
Datasheet
Revision 1.63 (03-30-07)
Page 14
SMSC USB20H04
DATASHEET
PARAMETER SYMBOL COMMENTS MIN
TYP
MAX
UNITS
I, IPD, IPU Input Buffer
Low Input Level
High Input Level
Low Input Leakage
High Input Leakage
V
ILI
V
IHI
I
IL
I
IH
TTL Levels
TTL Levels
V
IN
= 0
V
IN
= V
DD3.3
2.0
-10
-10
0.8
+10
+10
V
V
uA
uA
ICLK Input Buffer
Low Input Level
High Input Level
Hysteresis
V
ILCK
V
IHCK
V
HYSC
TTL Levels
TTL Levels
2.0
50
0.8
100
V
V
mV
O8 and IO8 Buffer
Low Output Level
High Output Level
Output Leakage
V
OL
V
OH
I
OL
I
OL
= 8 mA @ V
DD3.3
= 3.3V
I
OH
= -4mA @ V
DD3.3
= 3.3V
V
IN
= 0 to V
DD3.3
(Note 6.1)
2.4
-10
0.8
+10
V
V
uA
OD8 and IOD8 Buffer
Low Output Level
Output Leakage
V
OL
I
OL
I
OL
= 8 mA @ V
DD3.3
= 3.3V
V
IN
= 0 to V
DD3.3
(Note 6.1)
-10
0.8
+10
V
uA
IOSD12 Buffer
Low Output Level
Output Leakage
Hysteresis
V
OL
I
OL
V
HYSI
I
OL
= 12 mA @ V
DD3.3
= 3.3V
V
IN
= 0 to V
DD3.3
(Note 6.1)
-10
250
300
0.8
+10
350
V
uA
mV
Note 6.1 - Output Leakage is measured with the current pins in high impedance.
Table 6.3 - Pin Capacitance
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Clock Input Capacitance
C
CLKIN
12
pF
Input Capacitance
C
IN
All pins – except DPx/DMx pins
8
pF
Output Capacitance
C
OUT
All pins – except DPx/DMx pins
12
pF