Ultra Fast USB 2.0 Multi-Format Flash Media Controller

Datasheet

SMSC USB2240/USB2241

25

Revision 2.6 (05-08-08)

DATASHEET

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

the settings listed in Table 10.1, “GPIO Usage (ROM Rev 0x00),” on page 28.

Note 7.9

The 3.3V supply should be at least at 75% of its operating condition before the 1.8V supply

is allowed to ramp up.

7.4

Capacitance

Table 7.1 Pin Capacitance

PARAMETER

SYMBOL

LIMITS

UNIT

TEST CONDITION

MIN

TYP

MAX

Clock Input Capacitance

2

pF

All pins (except USB pins

and pins under test) are tied

to AC ground.

Input Capacitance

10

pF

Output Capacitance

20

pF