USB2240I-AEZG-XX Standard Microsystems (SMSC), USB2240I-AEZG-XX Datasheet - Page 23

• Manufacturer Part Number: USB2240I-AEZG-XX
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2240I-AEZG-XX

• Lead Free Status / RoHS Status: Compliant

Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
Datasheet
SMSC USB224x
GPIO2 /
RXD /
SDA
GPIO4
GPIO7 /
TXD /
SCK /
MS_SKT_SEL
GPIO10
(CRD_PWR)
RESET_N
TEST
GPIO12
GPIO14
GPIO15
SYMBOL
Table 6.1 USB224x 36-PiN QFN Pin Descriptions (continued)
27
29
31
21
18
28
26
19
24
I/O12
I
I/O12
I/O12
I/O12
O12
O12
I
I/O200
IS
I
I/O12
I/O12
I/O12
BUFFER
TYPE
DATASHEET
23
SDA: This is the data pin when used with an external
This pin may be used either as input, edge sensitive
This pin may be used either as input, edge sensitive
This pin may be used either as input, edge sensitive
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output. Custom firmware is
required to activate this function.
RXD: This signal can be used as input to the RXD of
UART in the device. Custom firmware is required to
activate this function.
serial EEPROM.
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output. Custom firmware is
required to activate this function.
For the USB2240/USB2240i only, this pin can be used
as the xD-Picture card detection pin.
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output. Custom firmware is
required to activate this function.
TXD: The GPIO7 can be used as an output TXD of
UART in the device. Custom firmware is required to
activate this function.
SCK: This is the clock output when used with an
external EEPROM.
MS_SKT_SEL: On the positive edge of RESET_N,
this pin is sampled to determined the Memory Stick
socket size.
1 = 8-bit
0 = 4-bit
GPIO: This pin may be used either as input, edge
sensitive interrupt input, or output. Custom firmware is
required to activate this function.
CRD_PWR: Card power drive of 3.3 V at either 100
mA or 200 mA.
RESET Input: This active low signal is used by the
system to reset the chip. The active low pulse should
be at least 1 μs wide.
TEST Input: Tie this pin to ground for normal
operation.
interrupt input, or output.
interrupt input, or output.
interrupt input, or output.
DESCRIPTION
Revision 2.0 (10-14-09)