KS8993F Micrel Inc, KS8993F Datasheet - Page 98

• Manufacturer Part Number: KS8993F
• Description: IC CONV MED 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993F

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• 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 Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: KS8993F-EVAL - EVAL KIT EXPERIMENTAL KS8993F
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

6.5
The reset circuit in
The reset circuit in
etc),. At power-on-reset, R, C and D1 provide the necessary ramp rise time to reset the KS8993F device. The
RST_OUT_n from CPU/FPGA provides the warm reset after power up.
Micrel, Inc.
June 2009
Reset Circuit
Figure 26: Recommended Reset Circuit for interfacing with CPU/FPGA Reset Output
Figure 25
Figure 26
KS8993F
is recommended for powering up the KS8993F if reset is triggered only by the power supply.
is recommended for applications where reset is driven by another device (e.g., CPU, FPGA,
KS8993F
RST
Figure 25: Recommended Reset Circuit
RST
D1: 1N4148
D1
C 10uF
VCC
D1
98
R 10K
VCC
D2
D1, D2: 1N4148
R 10K
C 10uF
[e-mail]
RST_OUT_n
CPU/FPGA
or [phone]
M9999-062509
KS8993F/FL