AM79C981 datasheet(8/40 Pages) AMD

Numer części	AM79C981

Szczegółowy opis	Integrated Multiport Repeater Plus??(IMR??

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Producent	AMD [Advanced Micro Devices]

Strona internetowa	http://www.amd.com

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Am79C981

PRELIMINARY

TXD+

0–7, TXD–0–7

Transmit Data

Output

10BASE-T port differential drivers (8 ports).

TXP+

0–7, TXP–0–7

Transmit Predistortion

Output

10BASE-T transmit waveform predistortion control

differential outputs (8 ports).

X

1

Crystal 1

Crystal Connection

The internal clock generator uses a 20 MHz crystal at-

tached to pins X

1 and X2. Alternatively, an external

20MHz CMOS clock signal can be used to drive this

pin.

X

2

Crystal 2

Crystal Connection

The internal clock generator uses a 20 MHz crystal at-

tached to pins X

1 and X2. If an external clock source is

used, this pin should be left unconnected.

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