USB2244 Standard Microsystems Corp., USB2244 Datasheet - Page 18

• Manufacturer Part Number: USB2244
• Description: Usb2244/usb2244i Ultra Fast Usb 2.0 Sd/mmc Flash Media Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (05-27-08)
I/O12, I/O12PU & I/O12PD Type
Buffer
Low Output Level
High Output Level
Output Leakage
Pull Down
Pull Up
IO-U
(Note
I-R
(Note
I/O200
Integrated Power FET for
GPIO10
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
7.5)
7.6)
7.7)
7.7)
PARAMETER
Note 7.4
Note 7.5
Note 7.6
Note 7.7
Note 7.8
Output leakage is measured with the current pins in high impedance.
See The USB 2.0 Specification, Chapter 7, for USB DC electrical characteristics
RBIAS is a 3.3V tolerant analog pin.
Output current range is controlled by program software, software disables FET during short
circuit condition.
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
SYMBOL
R
I
I
t
CCINIT
I
CSBYI
DSON
V
I
I
CSBY
V
DSON
I
PD
PU
OUT
OUT
I
I
OL
CC
CC
OH
OL
DATASHEET
V
- 0.4
MIN
200
100
DD33
-10
18
TYP
135
350
350
110
72
58
80
Ultra Fast USB 2.0 SD/MMC Flash Media Controller
MAX
+10
800
140
165
700
900
0.4
2.1
90
UNITS
mA
mA
mA
mA
mA
µA
μA
μA
µA
µA
μs
Ω
V
V
SMSC USB2244/USB2244i
I
V
I
V
V
(Note
Vdrop
Vdrop
I
C
OL
OH
FET
DD33
DD33
IN
LOAD
= 12mA @
= 0 to V
COMMENTS
= -12mA @
= 70mA
FET
FET
= 3.3V
= 3.3V
7.4)
= 10μF
= 0.46V
= 0.23V
DD33
Datasheet