KS8721B Micrel Inc, KS8721B Datasheet - Page 26
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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
Symbol
Symbol
t
t
t
t
t
t
t
t
M9999-030106
P
WL
WL
WL
WH
SU
HD
RLAT
CRS1
CRS2
Parameter
Parameter
RXC Period
RXC Period
RXC Period
RXC Period
RXC Period
RXC Period
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXC Pulse Width
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
CRS to RXD Latency, 4B or 5B Aligned
CRS to RXD Latency, 4B or 5B Aligned
CRS to RXD Latency, 4B or 5B Aligned
CRS to RXD Latency, 4B or 5B Aligned
CRS to RXD Latency, 4B or 5B Aligned
CRS to RXD Latency, 4B or 5B Aligned
“Start of Stream” to CSR Asserted
“Start of Stream” to CSR Asserted
“Start of Stream” to CSR Asserted
“Start of Stream” to CSR Asserted
“Start of Stream” to CSR Asserted
“Start of Stream” to CSR Asserted
“End of Stream” to CSR De-Asserted
“End of Stream” to CSR De-Asserted
“End of Stream” to CSR De-Asserted
“End of Stream” to CSR De-Asserted
“End of Stream” to CSR De-Asserted
“End of Stream” to CSR De-Asserted
RX+/RX-
CRS
RXDV
RXD[3:0]
RXER
RXC
Table 4. 100BaseT MII Receive Timing Parameters
Start of
Stream
Figure 6. 100BaseT MII Receivce Timing
t
CRS1
t
RLAT
t
SU
26
t
HD
End of
Stream
t
WL
t
t
t
P
CRS 2
WH
Min
Min
Min
Min
106
106
106
106
106
106
154
154
154
154
154
154
20
20
20
20
20
20
20
20
20
20
20
20
20
Typ
Typ
Typ
Typ
40
40
40
40
40
40
20
20
20
20
20
20
20
20
20
20
20
20
6
6
6
6
6
6
Max
Max
Max
Max
138
138
138
138
138
138
186
186
186
186
186
186
March 2006
Units
Units
Units
Units
BT
BT
BT
BT
BT
BT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns