USB2250 SMSC Corporation, USB2250 Datasheet - Page 20

• Manufacturer Part Number: USB2250
• Description: Ultra Fast USB 2.0 Multi-Format Flash Media Controller
• Manufacturer: SMSC Corporation

Revision 2.6 (05-08-08)
Memory Chip
Enable
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
General
Purpose I/O
NAME
LED1 / GPIO1
(VBUS_DET)
CRD_PWR0
CRD_PWR1
CRD_PWR2
CRD_PWR3
Table 5.1 USB2250/51/59 128-Pin VTQFP Pin Descriptions (continued)
SYMBOL
GPIO10 /
GPIO11 /
GPIO8 /
GPIO9 /
GPIO3
GPIO4
GPIO5
nMCE
(SDA)
(SCL)
128-PIN
VTQFP
120
121
118
26
14
78
76
16
5
DATASHEET
BUFFER
I/O200
I/O200
I/O200
I/O200
TYPE
I/O12
I/O12
I/O12
I/O12
I/O12
I/O12
I/O12
I/O12
O12
O12
MISC
20
DESCRIPTION
Program Memory Chip Enable; active low.
This signal is asserted when any external access
is being done by the processor.
This signal is held to logic 'high' while nRESET is
asserted.
This pin may be used either as input, edge
sensitive interrupt input, or output.
In addition, as an output, the GPIO1 can be used
output controlled by the LED1_GPIO1 register.
This pin may be used either as input, edge
sensitive interrupt input, or output.
This pin is not 5V tolerant. An external resistor
divider must be used when connected to VBUS.
This pin may be used either as input, edge
sensitive interrupt input, or output.
SCL: This is the clock output when used with an
external EEPROM.
This pin may be used either as input, edge
sensitive interrupt input, or output.
SDA: This is the data pin when used with an
external serial EEPROM.
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ either
100mA or 200mA.
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ either
100mA or 200mA.
GPIO: These pins may be used either as input,
edge sensitive interrupt input, or output. It is a
requirement that this is the only FET used to
power SM devices. Failure to do this will violate
SM voltage specification on SM device pins.
CRD_PWR: Card Power drive of 3.3V @ either
100mA or 200mA.
GPIO: These pins may be used either as input,
edge sensitive interrupt input, or output.
CRD_PWR: Card Power drive of 3.3V @ either
100mA or 200mA.
Ultra Fast USB 2.0 Multi-Format Flash Media Controller
SMSC USB2250/51/59
Datasheet