參數(shù)資料
型號: AM79C989JCT
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡接口
英文描述: Quad Ethernet Switching Transceiver (QuEST⑩)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 35/37頁
文件大?。?/td> 198K
代理商: AM79C989JCT
Am79C989
35
P R E L I M I N A R Y
Attachment Unit Interface (AUI)
Figure 5.
AUI Timing Diagram
(DO+) – (DO–)
VASQ
(CI+) – (CI–)
32
33
VASQ
(DI+) – (DI–)
30
31
34
100 mV
40 mV
80 Bit Times
21173B-9
No.
Symbol
Parameter Description
Min
Max
Unit
30
t
PWODI
DI Pulse Width Accept/Reject Threshold.
15
45
ns
31
t
PWKDI
DI Pulse Width Maintain/Turn-Off Threshold.
136
200
ns
32
t
PWOCI
CI Pulse Width Accept/Reject Threshold.
10
26
ns
33
t
PWKCI
CI Pulse Width Maintain/Turn-Off Threshold.
90
160
ns
34
t
DOETD
DO
±
End of Transmission Delimiter.
275
375
ns
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