KS8721SL Micrel Inc, KS8721SL Datasheet - Page 3

• Manufacturer Part Number: KS8721SL
• Description: TXRX 10/100 3.3V 48-SSOP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KS8721SL

• Number Of Drivers/receivers: 1/1
• Protocol: IEEE 802
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 576-1010 - BOARD EVAL EXPERIMENT KS8721SL
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

Micrel, Inc.
Revision History
June 2009
Revision
0.9
1.0
1.1
1.2
1.3
01/12/04
03/06/04
05/17/04
01/21/05
06/25/09
Date
Summary of Changes
Data sheet created.
Initial release. Change to new format. Added part-ordering information. Editorial changes on pin
description, RMII, and media converter operation. Update circuit design, reset timing, thermal
resistance, electrical characteristics, and strapping option circuit.
Added BLI product information.
MDIO Pull-up resistor value changed to 4.7kΩ. Added note on strapping option pins. Updated
bits 1b.0 - 1b.7 to self clearing. Updated electrical characteristics. Updated reference schematic
for strapping option configuration to 3.3V. Crystal spec updated to 40Ω series resistance. Added
additional magnetics to qualified transformer table. Added 2 lead-free part options. Added
recommended reset circuit.
Update ordering information.
3
M9999-062509-1.3
KS8721BL/SL