KSZ8995X Micrel Inc, KSZ8995X Datasheet - Page 3

• Manufacturer Part Number: KSZ8995X
• Description: 5 Port 10/100 Switch With PHY And Frame Buffers
• Manufacturer: Micrel Inc

Specifications of KSZ8995X

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• 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 Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1642 - BOARD EVALUATION FOR KSZ8995XA
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1041

Revision History
December 2003
KS8995X
Revision Date
1.08
1.09
1.10
1.11
1.12
1.13
4/01/02
5/20/02
10/9/02
10/24/02
5/20/03
8/29/03
Summary of Changes
Created.
Changed MII setting descriptions. Changed pu/pd descriptions for SMRXD2.
Changed pu/pd description for forced flow control.
Edited large packet sizes back in, also in “Register 4.”
Added in typical supply current numbers for 100BaseTX and 10BaseTX operation.
Added in note for illegal half-duplex, force flow control.
Added extra X1 clock input description.
Updated to chip only current numbers.
“Register 4” and “Pin Description” PMRXER correction.
Changed SMRXC and SMTXC to I/O. Input in MAC mode, output in PHY mode MII. Changed polarity of
TXP and TXM pins. “Electrical Characteristics” modified current consumption to chip only numbers.
Added description for no dropped packets in half duplex mode. Added recommended operating
conditions. Added Idle mode current consumption. Added “Selection of Isolation Transformers.”
Added 3.01k resistor instructions for ISET “Pin Description.” Changed Polarity of transmit pairs in
“Pin Description.” Changed description for register 2, bit 1, in “Register Description.”
Added “Reset Tming.” Added “QoS Description.” “Register 3” changed 802.1x to 802.3x. “Register 6”
changed default column to disable flow control for pull-down, and enable flow control for pull up.
“Register 29” and “MIIM Register 0” indicate loop back is at the PHY
Removed caption under table in “Register 18.” Changed definition of MDI/MDIX in “Register 29,”
“Register 30,” “MIIM Register 0.”
Refer to 8995XA data sheet.
Convert to new format.
3
M9999-120403
Micrel