KS8893MQL Micrel Inc, KS8893MQL Datasheet - Page 112

• Manufacturer Part Number: KS8893MQL
• Description: IC MANAGED SWITCH 10/100 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8893MQL

• 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): 3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• 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): 3.5V
• Operating Supply Voltage (min): 3.1V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1457

Micrel, Inc.
KSZ8893MQL/MBL
Reset Circuit
The reset circuit in Figure 32 is recommended for powering up the KSZ8893MQL/MBL if reset is triggered only by
the power supply.
VCC
D1: 1N4148
D1
R 10K
KS8893M
RST
C 10uF
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
KSZ8893MQL/MBL device. The RST_OUT_n from CPU/FPGA provides the warm reset after power up.
VCC
R 10K
D1
KS8893M
CPU/FPGA
RST
RST_OUT_n
D2
C 10uF
D1, D2: 1N4148
Figure 33. Recommended Reset Circuit for interfacing with CPU/FPGA Reset Output
December 2007
112
M9999-121007-1.5