KSZ8721CL TR Micrel Inc, KSZ8721CL TR Datasheet - Page 27

TXRX 10/100 3.3V 48-LQFP

KSZ8721CL TR

Manufacturer Part Number
KSZ8721CL TR
Description
TXRX 10/100 3.3V 48-LQFP
Manufacturer
Micrel Inc
Type
Transceiverr
Datasheet

Specifications of KSZ8721CL TR

Number Of Drivers/receivers
1/1
Protocol
MII
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
KSZ8721CLTR
KSZ8721CLTR
Symbol
April 2005
KS8721CL
t
t
t
t
t
t
t
t
P
WL
WH
SU
HD
RLAT
CRS1
CRS2
Parameter
RXC Period
RXC Pulse Width
RXC Pulse Width
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
CRS to RXD Latency, 4B or 5B Aligned
“Start of Stream” to CSR Asserted
“End of Stream” to CSR De-Asserted
RX+/RX-
CRS
RXDV
RXD[3:0]
RXER
RXC
Table 4. 100BASE-T MII Receive Timing Parameters
Start of
Stream
Figure 7. 100BASE-T MII Receive Timing
t
CRS1
t
RLAT
t
SU
27
t
HD
End of
Stream
t
WL
t
t
t
P
CRS2
WH
Min
106
154
20
20
Typ
40
20
20
6
M9999-041405
Max
138
186
Micrel, Inc.
Units
BT
ns
ns
ns
ns
ns
ns
ns

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