KS8993F Micrel Inc, KS8993F Datasheet - Page 15

• Manufacturer Part Number: KS8993F
• Description: IC CONV MED 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993F

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• 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): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: KS8993F-EVAL - EVAL KIT EXPERIMENTAL KS8993F
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

Micrel, Inc.
Pin #
93
94
95
96
97
98
99
100
June 2009
Pin Name
PRSEL0
MDC
MDIO
SPIQ
SCL
SDA
SPIS_N
PS1
Type
Ipd
Ipu
Ipu/O
Opu
Ipu/O
Ipu/O
Ipu
Ipd
Description
below to select the desired servicing. Note that this selection affects all split
transmit queue ports in the same way.
MII Management interface: clock input
MII Management interface: data input/output
Note: An external 4.7K pull up is needed on this pin when it is in use.
SPI slave mode: serial data output
See description in pin# (100, 101)
SPI slave mode / I2C slave mode: clock input
I2C master mode: clock output
See description in pin# (100, 101)
SPI slave mode: serial data input
I2C master/slave mode: serial data input/output
See description in pin# (100, 101)
SPI slave mode: chip select (active low)
See description in pin# (100, 101)
Serial bus configuration pins to select mode of access to KS8993F internal
(PRSEL,PRSEL0)
When SPIS_N is high, the KS8993F is deselected and SPIQ is held in
high impedance state.
A high-to-low transition is used to initiate SPI data transfer.
(0,0)
(0,1)
(1,0)
(1,1)
15
Description
Transmit all high priority before
low priority
Transmit high priority and low
priority at 10:1 ratio.
Transmit high priority and low
priority at 5:1 ratio.
Transmit high priority and low
priority at 2:1 ratio.
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or [phone]
M9999-062509
KS8993F/FL