KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 97

• Manufacturer Part Number: KS8993F A5
• Manufacturer: Micrel Inc

Specifications of KS8993F A5

• 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: Not Compliant

KS8993F
6.4
As long as the stable supply voltages to reset high timing (minimum of 10 ms) is met, there is no power sequencing
requirement for the KS8993F supply voltages (1.8V, 3.3/2.5V).
The reset timing requirement is summarized in the following figure and table.
August 26, 2004
Reset Timing
Parameter
t
t
t
t
cs
ch
sr
rc
Output Pin
Strap-In
Voltage
Strap-In /
RST_N
Supply
Value
Stable supply voltages to reset high
Configuration setup time
Configuration hold time
Reset to Strap-In pin output
Table 23: Reset Timing Parameters
Description
Figure 24: Reset Timing
tsr
- 97 -
tcs
tch
trc
Min
10
50
50
50
Max
Units
ms
ns
ns
us
Revision 1.0
Micrel