KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 95

• 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
6.3.4 MDC/MDIO Timing
August 26, 2004
MDC
MDIO
(Into Chip)
MDIO
(Out of Chip)
t
t
t
t
t
t
P
WL
WH
MD1
MD2
MD3
MDC period
MDC pulse width
MDC pulse width
MDIO Setup to MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDC to MDIO Valid (MDIO as output)
Figure 22: MDC/MDIO Timing for MIIM and SMI Interfaces
t
MD1
Valid
Data
t
WL
t
t
MD2
MD3
- 95 -
t
P
t
WH
Valid
Valid
Data
Data
min.
60ns
40%
40%
10ns
10ns
0ns
typ.
max.
60%
60%
20ns
Revision 1.0
Micrel