KS8721B Micrel Inc, KS8721B Datasheet - Page 28
![Special Function IC](/photos/6/84/68448/576-48-ssop_sml.jpg)
KS8721B
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KS8721B
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
KS8721BL
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
KS8721BT
Manufacturer:
LUCENT
Quantity:
560
Part Number:
KS8721BT
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
KS8721BTR
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
KS8721B/BT
Symbol
t
t
t
t
M9999-041405
P
MD1
MD2
MD3
Parameter
MDC Period
MDIO Set-Up to MDC (MDIO as input)
MDIO Hold after MDC (MDIO as input)
MDC to MDIO Valid (MDIO as output)
MDC
MDIO
(Into Chip)
MDIO
(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
10
10
Typ
400
222
Max
Micrel, Inc.
April 2005
Units
ns
ns
ns
ns