lan9512 Standard Microsystems Corp., lan9512 Datasheet - Page 12

• Manufacturer Part Number: lan9512
• Description: Usb Hub With Integrated 10/100 Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (04-20-09)
PINS
PINS
NUM
NUM
1
1
1
1
1
1
1
1
1
1
1
1
1
USB Port Power
USB Port Power
USB DMINUS 0
USB DMINUS 2
USB DMINUS 3
USB DPLUS 2
USB DPLUS 3
24 MHz Clock
24 MHz Clock
Downstream
Downstream
Downstream
Downstream
Upstream
Upstream
DPLUS 0
Control 2
Control 3
Enable
NAME
NAME
Test 2
Test 3
Test 4
USB
CLK24_OUT
CLK24_EN
PRTCTL2
PRTCTL3
SYMBOL
SYMBOL
USBDM0
USBDM2
USBDM3
USBDP0
USBDP2
USBDP3
TEST2
TEST3
TEST4
Table 2.3 Miscellaneous Pins (continued)
Table 2.4 USB Pins
DATASHEET
BUFFER
BUFFER
IS/OD12
IS/OD12
TYPE
TYPE
(PU)
(PU)
AIO
AIO
AIO
AIO
AIO
AIO
08
IS
-
-
-
12
Used for factory testing, this pin must always be
connected to VSS for proper operation.
Used for factory testing, this pin must always be
connected to VDD33IO for proper operation.
This pin enables the generation of the 24 MHz
clock on the CLK_24_OUT pin.
This pin outputs a 24 MHz clock that can be used
a reference clock for a partner hub.
Used for factory testing, this pin must always be left
unconnected.
Upstream USB DMINUS signal.
Upstream USB DPLUS signal.
Downstream USB peripheral 2 DMINUS signal.
Downstream USB peripheral 2 DPLUS signal.
Downstream USB peripheral 3 DMINUS signal.
Downstream USB peripheral 3 DPLUS signal.
When used as an output, this pin enables power to
downstream USB peripheral 2.
When used as an input, this pin is used to sample
the output signal from an external current monitor
for downstream USB peripheral 2. An overcurrent
condition is indicated when the signal is low.
Refer to
When used as an output, this pin enables power to
downstream USB peripheral 3.
When used as an input, this pin is used to sample
the output signal from an external current monitor
for downstream USB peripheral 3. An overcurrent
condition is indicated when the signal is low.
Refer to
USB Hub with Integrated 10/100 Ethernet Controller
Section 2.1
Section 2.1
DESCRIPTION
DESCRIPTION
for additional information.
for additional information.
SMSC LAN9512
Datasheet