KSZ8721SL A4 Micrel Inc, KSZ8721SL A4 Datasheet - Page 25
KSZ8721SL A4
Manufacturer Part Number
KSZ8721SL A4
Description
Manufacturer
Micrel Inc
Datasheet
1.KSZ8721SL_A4.pdf
(34 pages)
Specifications of KSZ8721SL A4
Lead Free Status / RoHS Status
Compliant
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Timing Diagrams
Symbol
February 2005
KS8721BL/SL
t
t
t
t
t
t
t
t
t
SU1
SU2
HD1
HD2
CRS1
CRS2
LAT
SQE
SQEP
Parameter
TXD [3:0] Set-Up to TXC High
TXEN Set-Up to TXC High
TXD [3:0] Hold After TXC High
TXEN Hold After TXC High
TXEN High to CRS Asserted Latency
TXEN Low to CRS De-Asserted Latency
TXEN High to TXP/TXM Output (TX Latency)
COL (SQE) Delay After TXEN De-Asserted
COL (SQE) Pulse Duration
Table 3. 10BASE-T MII Transmit Timing Parameters
Figure 4. 10BASE-T MII Transmit Timing
25
Min
10
10
0
0
Typ
2.5
1.0
4
8
4
M9999-022105
Max
Micrel
Units
BT
BT
BT
ns
ns
ns
ns
µs
µs
(1)
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