Micrel, Inc.
KS8721BL/SL
Revision History
Revision
0.9
Date
Summary of Changes
01/12/04
03/06/04
Data sheet created.
1.0
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.
1.1
1.2
05/17/04
01/21/05
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.
1.3
06/25/09
Update ordering information.
3
M9999-062509-1.3
June 2009
MICREL [ MICREL SEMICONDUCTOR ]
