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LXT970ATC Fiches technique(PDF) 56 Page - Intel Corporation

No de pièce LXT970ATC
Description  Dual-Speed Fast Ethernet Transceiver
PDF  74 Pages
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Fabricant  INTEL [Intel Corporation]
Site Internet  http://www.intel.com
Logo INTEL - Intel Corporation

LXT970ATC Fiches technique(HTML) 56 Page - Intel Corporation

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LXT970A — Dual-Speed Fast Ethernet Transceiver
56
Datasheet
Figure 27. MII - 100BASE-FX Transmit Timing / 4B Mode
Table 36. MII - 100BASE-FX Transmit Timing Parameters / 4B Mode
Parameter
Sym
Min
Typ
1
Max
Units2
TXD<3:0>, TX_EN, TX_ER Setup to TX_CLK High
t6A
10
––
ns
TXD<3:0>, TX_EN, TX_ER Hold from TX_CLK High
t6B
5
––
ns
TX_EN sampled to CRS asserted
t6C
–
34
BT
TX_EN sampled to CRS de-asserted
t6D
–
416
BT
TX_EN sampled to TPO out (Tx latency)
t6E
6
11
14
BT
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production testing.
2. BT is the duration of one bit as transferred to and from the MAC and is the reciprocal of the bit rate. 100BASE-T bit time = 10-
8 s or 10 ns.
t6A
t6B
t6E
t6C
t6D
0ns
250ns
TXCLK
TX_EN
TXD<3:0>
CRS
FIBOP



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