參數(shù)資料
型號: AM79C981JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: Integrated Multiport Repeater Plus⑩ (IMR+⑩)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數(shù): 29/40頁
文件大?。?/td> 347K
代理商: AM79C981JC
AMD
PRELIMINARY
1–99
Am79C981
SWITCHING CHARACTERISTICS (continued)
Notes:
1. Parameter not tested.
2. Uses switching test load.
3. DI pulses narrower than t
PWODI
(min) will be rejected; pulses wider than t
PWODI
(max) will turn internal DI carrier sense on.
4. DI pulses narrower than t
PWKDI
(min) will maintain nternal DI carrier sense on; pulses wider than t
PWKDI
(max) will turn nternal
DI carrier sense off.
5. CI pulses narrower than t
PWOCI
(min) will be rejected; pulses wider than t
PWOCI
(max) will turn internal CI carrier sense on.
6. CI pulses narrower than t
PWKCI
(min) will maintain internal CI carrier sense on; pulses wider than t
PWKCI
(max) will turn
internal CI carrier sense off.
7. RXD pulses narrower than t
PWKRD
(min) will maintain internal RXD carrier sense on; pulse wider than t
PWKRD
(max) will
turn internal RXD carrier sense off.
8. For the typical twisted pair load as shown in Figure 7, using a 100
cable, an additional 28 mA (max) of I
DD
current is
required for each twisted pair port used. Less than 18% of the power associated with this additional current is dissipated
by the IMR+ chip; the remainder is dissipated externally in the twisted pair load and cable.
相關(guān)PDF資料
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AM79C983AKC Integrated Multiport Repeater 2 (IMR2⑩)
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