KSZ8993 Micrel Inc, KSZ8993 Datasheet - Page 4

• Manufacturer Part Number: KSZ8993
• Description: IC SWITCH 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8993

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 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): 2.75/3.6V
• Operating Supply Voltage (min): 2.35V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1032

KS8993
Table of Contents
KS8993
System Level Applications .............................................................................................................................................................. 5
Pin Description .............................................................................................................................................................................. 6
I/O Grouping
I/O Descriptions ............................................................................................................................................................................ 10
Pin Configuration ........................................................................................................................................................................... 15
Functional Overview: Physical Layer Transceiver ..................................................................................................................... 16
Functional Overview: Switch Core ............................................................................................................................................... 18
MII Interface Operation .................................................................................................................................................................. 21
SNI Interface (7-wire) Operation ................................................................................................................................................... 22
Absolute Maximum Ratings .......................................................................................................................................................... 23
Operating Ratings .......................................................................................................................................................................... 23
Electrical Characteristics .............................................................................................................................................................. 23
Timing Diagrams ............................................................................................................................................................................ 24
Reference Circuit ........................................................................................................................................................................... 29
4B/5B Coding
MLT Coding
802.1q VLAN and 802.1p Priority Frame ...................................................................................................................................... 33
Selection of Isolation Transformers ............................................................................................................................................. 34
Selection of Reference Crystals ................................................................................................................................................... 34
Package Outline and Dimensions ................................................................................................................................................ 35
100BaseTX Transmit ............................................................................................................................................................... 16
100BaseTX Receive ................................................................................................................................................................ 16
PLL Clock Synthesizer ............................................................................................................................................................ 16
Scrambler/De-scrambler (100BaseTX only) ............................................................................................................................ 16
100BaseFX operation .............................................................................................................................................................. 16
100BaseFX Signal Detection ................................................................................................................................................... 16
100BaseFX Far End Fault ....................................................................................................................................................... 16
10BaseT Transmit ................................................................................................................................................................... 16
10BaseT Receive .................................................................................................................................................................... 16
Power Management ................................................................................................................................................................ 17
LED Mode Selection ................................................................................................................................................................ 17
Auto-Negotiation ...................................................................................................................................................................... 17
Address Look Up ..................................................................................................................................................................... 18
Switching Engine ..................................................................................................................................................................... 18
MAC (Media Access Controller) Operation ............................................................................................................................. 18
VLAN Support .......................................................................................................................................................................... 19
QoS Priority Support ................................................................................................................................................................ 20
Learning .......................................................................................................................................................................... 18
Migration ......................................................................................................................................................................... 18
Aging ............................................................................................................................................................................ 18
Forwarding ...................................................................................................................................................................... 18
Inter Packet Group .......................................................................................................................................................... 18
Back off Algorithm ........................................................................................................................................................... 18
Late Collision .................................................................................................................................................................. 18
Illegal Frame ................................................................................................................................................................... 18
Flow Control .................................................................................................................................................................... 18
Full-Duplex Flow Control ................................................................................................................................................. 18
Half-Duplex Back Pressure ............................................................................................................................................. 18
.............................................................................................................................................................................. 9
............................................................................................................................................................................ 31
............................................................................................................................................................................ 32
4
May 2005
Micrel