KS8721B Micrel Inc, KS8721B Datasheet - Page 28

• Manufacturer Part Number: KS8721B
• Description: Special Function IC
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KS8721B

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 576-1006 - BOARD EVAL EXPERIMENT KS8721B
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

Symbol
Symbol
t
t
t
t
M9999-030106
P
MD1
MD2
MD3
Parameter
Parameter
MDC Period
MDC Period
MDC Period
MDC Period
MDC Period
MDC Period
MDIO Set-Up to MDC (MDIO as input)
MDIO Set-Up to MDC (MDIO as input)
MDIO Set-Up to MDC (MDIO as input)
MDIO Set-Up to MDC (MDIO as input)
MDIO Set-Up to MDC (MDIO as input)
MDIO Set-Up to MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDC to MDIO Valid (MDIO as output)
MDC to MDIO Valid (MDIO as output)
MDC to MDIO Valid (MDIO as output)
MDC to MDIO Valid (MDIO as output)
MDC to MDIO Valid (MDIO as output)
MDC to MDIO Valid (MDIO as output)
MDC
MDI O
(Into Ch ip)
MDI O
(Out of Chip)
Figure 8. Serial Management Interface Timing
Table 6. Serial Management Interface Timing
t
MD1
Valid
Data
t
t
MD2
MD3
t
P
28
Valid
Valid
Data
Data
Min
Min
Min
Min
10
10
10
10
10
10
10
10
10
10
10
10
Typ
Typ
Typ
Typ
400
400
400
400
400
400
222
222
222
222
222
222
Max
Max
Max
Max
March 2006
Units
Units
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns