USB2251-NU-05 Standard Microsystems (SMSC), USB2251-NU-05 Datasheet - Page 41

• Manufacturer Part Number: USB2251-NU-05
• Description: ULTRA FAST USB 2.0 MULTI-SLOT FLASH MEDI
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2251-NU-05

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
SMSC USB2250/50i/51/51i
10.4
I/O200
Integrated Power FET for
GPIO8, GPIO9, GPIO10, &
GPIO11
High Output Current Mode
Low Output Current Mode
(Note
On Resistance
(Note
Output Voltage Rise Time
Supply Current Unconfigured
Supply Current Active
Full Speed
High Speed
Supply Current Suspend
Industrial Temperature Suspend
Clock Input Capacitance
Input Capacitance
Output Capacitance
10.8)
10.8)
PARAMETER
PARAMETER
Note 10.5 Output leakage is measured with the current pins in high impedance.
Note 10.6 See The USB 2.0 Specification, Chapter 7, for USB DC electrical characteristics
Note 10.7 RBIAS is a 3.3 V tolerant analog pin.
Note 10.8 Output current range is controlled by program software, software disables FET during short
Note 10.9 The assignment of each Integrated Card Power FET to a designated Card Connector is
Note 10.10 The 3.3 V supply should be at least at 75% of its operating condition before the 1.8 V
T
Capacitance
A
= 25°C; fc = 1 MHz; V
circuit condition.
controlled by both firmware and the specific board implementation. Firmware will default to
the settings listed in
supply is allowed to ramp up.
SYMBOL
C
C
C
XTAL
SYMBOL
OUT
DD
IN
R
I
I
t
CCINIT
I
CSBYI
DSON
I
I
CSBY
DSON
OUT
OUT
I
I
, V
CC
CC
Table 10.1 Pin Capacitance
DDP
Table 11.1, “GPIO Usage,” on page
= 1.8 V
MIN
DATASHEET
MIN
200
100
41
LIMITS
TYP
TYP
110
135
350
350
80
MAX
10
20
2
MAX
800
140
165
750
950
2.1
90
UNIT
pF
pF
pF
UNITS
43.
mA
mA
mA
mA
mA
μA
μA
μs
Ω
All pins (except USB pins
and pins under test) are tied
to AC ground.
TEST CONDITION
Vdrop
Vdrop
I
C
V
V
FET
DD33
DD33
LOAD
Revision 2.0 (09-29-09)
COMMENTS
= 70 mA
FET
FET
, V = 3.3 V
= 3.3 V
= 10 μF
= 0.46 V
= 0.23 V