LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 442

• Manufacturer Part Number: LAN9312-NU
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9312-NU

• Number Of Primary Switch Ports: 2
• Operating Supply Voltage (typ): 3.3V
• Fiber Support: No
• Phy/transceiver Interface: MII
• Power Supply Type: Analog
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Compliant

Revision 1.7 (06-29-10)
15.5
15.5.1
Overshoot and Undershoot
Jitter
Transmitter Peak Differential Output Voltage
Receiver Differential Squelch Threshold
Note 15.7 Measured at line side of transformer, line replaced by 100 Ω (+/- 1%) resistor.
Note 15.8 Offset from 16nS pulse width at 50% of pulse peak.
Note 15.9 Measured differentially.
Note 15.10 Min/max voltages guaranteed as measured with 100 Ω resistive load.
This section details the various AC timing specifications of the LAN9312.
Note: The I
Equivalent Test Load
Output timing specifications assume the 25pF equivalent test load illustrated in
AC Specifications
PARAMETER
PARAMETER
Specification for detailed I
2
C timing adheres to the Philips I
Table 15.4 100BASE-TX Transceiver Characteristics
Table 15.5 10BASE-T Transceiver Characteristics
OUTPUT
Figure 15.1 Output Equivalent Test Load
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
2
SYMBOL
SYMBOL
C timing information.
DATASHEET
V
V
V
OUT
OS
DS
442
MIN
MIN
300
2.2
2
C-Bus Specification . Refer to the Philips I
-
25 pF
TYP
TYP
420
2.5
-
MAX
MAX
585
1.4
2.8
5
UNITS
UNITS
Figure 15.1
mV
nS
%
V
SMSC LAN9312
Note 15.10
Note 15.9
NOTES
NOTES
below.
Datasheet
2
C-Bus