KSZ8873MLLI Micrel Inc, KSZ8873MLLI Datasheet - Page 100

• Manufacturer Part Number: KSZ8873MLLI
• Description: IC ETHERNET SWITCH 3PORT 64LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873MLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Micrel, Inc.
KSZ8873MLL/FLL/RLL
Reset Circuit
The reset circuit in Figure 32 is recommended for powering up the KSZ8873MLL/FLL/RLL if reset is triggered only by the
power supply.
Figure 32. Recommended Reset Circuit
The reset circuit in Figure 33 is recommended for applications where reset is driven by another device (e.g., CPU, FPGA,
etc),. At power-on-reset, R, C and D1 provide the necessary ramp rise time to reset the KSZ8873MLL/FLL/RLL device.
The RST_OUT_n from CPU/FPGA provides the warm reset after power up.
Figure 33. Recommended Reset Circuit for interfacing with CPU/FPGA Reset Output
September 2009
100
M9999-092309-1.2