USB2228 SMSC Corporation, USB2228 Datasheet - Page 19

• Manufacturer Part Number: USB2228
• Description: (USB2227 / USB2228) 4th Generation USB2.0 Flash Media Controller
• Manufacturer: SMSC Corporation

4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs
Datasheet
SMSC USB2227/USB2228
CRD_PWR0
CRD_PWR1
CRD_PWR2
GPIO[15:12]
nTEST[1:0]
SYMBOL
GPIO10/
GPIO11/
nRESET
GPIO8/
VDD18
VDD33
GPIO7
GPIO9
128-PIN
VTQFP
107
105
106
100
108
115
42
79
44
90
91
92
93
95
96
49
43
80
3
DIGITAL POWER, GROUNDS, and NO CONNECTS
124-PIN
DQFN
A54
B20
B50
A40
B21
B42
A46
B43
A47
B54
A48
B45
B23
A53
A22
B38
A50
B51
B2
BUFFER
TYPE
I/O8
I/O8
I/O8
I/O8
I/O8
I/O8
DATASHEET
IS
I
19
General Purpose I/O:
This pin may be used either as input, edge sensitive
interrupt input, or output.
General Purpose I/O or Card Power:
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ 100mA.
General Purpose I/O:
This pin may be used either as input, edge sensitive
interrupt input, or output.
General Purpose I/O or Card Power:
GPIO: These pins may be used either as input, edge
sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ 100mA.
General Purpose I/O or Card Power:
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ 200mA.
General Purpose I/O:
These pins may be used either as input, or output.
RESET input:
This active low signal is used by the system to reset the
chip. The active low pulse should be at least 1μs wide.
TEST input:
These signals are used for testing the chip. User should
normally tie them high externally, if the test function is
not used.
1.8v Digital Core Power:
+1.8V Core power
All VDD18 pins must be connected together on the
circuit board.
3.3v Power & Voltage Regulator Input:
3.3V Power & Regulator Input.
pins 100 & 108 supply 3.3V power to the internal 1.8V
regulators.
DESCRIPTION
Revision 1.91 (10-13-06)