KSZ8999 Micrel Inc, KSZ8999 Datasheet - Page 48

• Manufacturer Part Number: KSZ8999
• Description: IC SWITCH 10/100 9PORT 208PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8999

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• 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
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1644 - BOARD EVALUATION FOR KSZ8999
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1044

Micrel, Inc.
KS8999
Figure 21. Recommended Circuit for Interfacing with CPU/FPGA Reset
At power-on-reset, R, C, and D1 provide the necessary ramp rise time to reset the KS8999 device. The reset out
from CPU/FPGA provides warm reset after power up. It is also recommended to power up the VDD core voltage
earlier than VDDIO voltage. At worst case, the both VDD core and VDDIO voltages should come up at the same
time.
48
January 2005
KS8999