Ultra Fast USB 2.0 Multi-Format Flash Media Controller

Datasheet

Revision 2.6 (05-08-08)

22

SMSC USB2240/USB2241

DATASHEET

Figure 7.1 Supply Rise Time Model

7.2

Recommended Operating Conditions

Note 7.3

A 3.3V regulator with an output tolerance of 1% must be used if the output of the internal

power FET’s must support a 5% tolerance.

PARAMETER

SYMBOL

MIN

MAX

UNITS

COMMENTS

Operating

Temperature

070

°C

3.3V supply voltage

3.0

3.6

V

(Note 7.3)

3.3V supply rise time

0

400

μs

Voltage on

USB+ and USB- pins

-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

≤ 5.5

Voltage on any signal

pin

-0.3

V

Voltage on XTAL1

-0.3

V

Voltage on XTAL2

-0.3

V

10%

90%

Voltage

Time

100%

3.3V

VSS

VDD33