參數(shù)資料
型號(hào): AM79C989
廠商: Advanced Micro Devices, Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Motor Driver IC; Supply Voltage Max:13.2V; Output Current Max:0.5A; Package/Case:8-SOIC; Driver Type:Motor; Leaded Process Compatible:No; Output Current:1.5A; Peak Reflow Compatible (260 C):No; Supply Voltage Min:3.8V
中文描述: 四路以太網(wǎng)交換器(QuEST的⑩)
文件頁數(shù): 35/37頁
文件大小: 198K
代理商: AM79C989
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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