SMSC USB2242 User Manual

Page 19

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Ultra Fast USB 2.0 Memory Stick Flash Media Controller

Datasheet

SMSC USB2242/USB2242i

19

Revision 1.0 (05-27-08)

DATASHEET

Note 7.4

Output leakage is measured with the current pins in high impedance.

Note 7.5

See The USB 2.0 Specification, Chapter 7, for USB DC electrical characteristics

Note 7.6

RBIAS is a 3.3V tolerant analog pin.

Note 7.7

Output current range is controlled by program software, software disables FET during short
circuit condition.

Note 7.8

The assignment of each Integrated Card Power FET to a designated Card Connector is
controlled by both firmware and the specific board implementation. Firmware will default to

I/O12, I/O12PU & I/O12PD Type
Buffer

Low Output Level

High Output Level

Output Leakage

Pull Down

Pull Up

V

OL

V

OH

I

OL

PD

PU

V

DD33

- 0.4

-10

72

58

0.4

+10

V

V

µA

μA

μA

I

OL

= 12mA @

V

DD33

= 3.3V

I

OH

= -12mA @

V

DD33

= 3.3V

V

IN

= 0 to V

DD33

(

Note 7.4

)

IO-U
(

Note 7.5

)

I-R
(

Note 7.6

)

I/O200
Integrated Power FET for
GPIO10

High Output Current Mode

Low Output Current Mode
(

Note 7.7

)

On Resistance
(

Note 7.7

)

Output Voltage Rise Time

I

OUT

I

OUT

R

DSON

t

DSON

200

100

2.1

800

mA

mA

Ω

μs

Vdrop

FET

= 0.46V

Vdrop

FET

= 0.23V

I

FET

= 70mA

C

LOAD

= 10

μF

Supply Current Unconfigured

I

CCINIT

80

90

mA

Supply Current Active

Full Speed

High Speed

I

CC

I

CC

110

135

140

165

mA

mA

Supply Current Suspend

I

CSBY

350

700

µA

Industrial Temperature Suspend

I

CSBYI

350

900

µA

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

COMMENTS

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