SMSC USB2502 Manual De Usuario

2-Port USB 2.0 Hub Controller

Revision 2.3 (08-27-07)

40

SMSC USB2502

ICLK Input Buffer 

Low Input Level

High Input Level 

Input Leakage

Hysteresis

V

ILCK

V

IHCK

I

IL

V

HYSC

2.0

-10

50

0.8

+10

100

V

V

uA

mV

TTL Levels

V

IN

 = 0 to V

DD33

CR

O8 and I/O8 Type Buffer

Low Output Level

High Output Level

Output Leakage

V

OL

V

OH

I

OL

2.4

-10

0.4

+10

V

V

uA

I

OL

 = 8 mA @ V

DD33

CR = 3.3V

I

OH

 = -4mA @ V

DD33

CR = 3.3V

V

IN

 = 0 to V

DD33

CR

(Note 1)

I/OSD12 Type Buffer

Low Output Level

Output Leakage

Hysteresis

V

OL

I

OL

V

HYSI

-10

250

300

0.4

+10

350

V

µA

mV

I

OL

 = 12 mA @ V

DD33

CR = 3.3V

V

IN

 = 0 to V

DD33

CR

(Note 1)

IO-U
(Note 2)

I-R
(Note 3)

Supply Current Unconfig-
ured

High-Speed Host
Full-Speed Host

I

CCINIT

I

CCINIT

73 
65 

mA
mA

Supply Current 
Configured
(High-Speed Host)

2 Ports @ FS/LS
2 Ports @ HS
1 Port HS, 1 Port FS/LS

I

HCC2

I

HCH2

I

HCH1C1

120 
170 
140 

mA
mA
mA

Total from all supplies

Supply Current 
Configured
(Full-Speed Host)

1 Port 
2 Ports

I

FCC1

I

FCC2

90 
90 

mA
mA

Total from all supplies