參數(shù)資料
型號: 74ETL16245
廠商: National Semiconductor Corporation
英文描述: 16-Bit Data Transceiver with Incident Wave Switching
中文描述: 16位數(shù)據(jù)收發(fā)器事件波開關(guān)
文件頁數(shù): 8/10頁
文件大?。?/td> 190K
代理商: 74ETL16245
AC Loading
TL/F/11654–11
*
Includes jig and probe capacitance
FIGURE 1. Standard AC Test Load
Note 1:
Defined to emulate the range of VME bus transmission line loading
as a function of board population and driver location. Rx
e
13
X
, 26
X
or
56
X
depending on test.
Test
Port
SW1
SW2
Rx
t
PHZ,
t
PLZ
A, B
a
7
Open
t
PZH
,
t
PZL
A, B
a
7
Open
t
PLH
,
t
PHL
A
Open
Closed
26
t
PLH
,
t
PHL
B
Open
Open
t
r
, t
f
A
Open
Closed
26
t
PV
A
Open
Closed
26
t
CP
B
Open
Open
t
CP
A
Open
Closed
13 then 56
t
CPV
A
Open
Closed
13 and 56
FIGURE 1a
TL/F/11654–12
FIGURE 2. Input Pulse Requirements
Amplitude
Rep. Rate
t
w
t
r
t
f
3.0V
1 MHz
500 ns
2.5 ns
2.5 ns
FIGURE 2a. Test Input Signal Requirements
TL/F/11654–13
FIGURE 3. TRI-STATE Output HIGH
and LOW Enable and Disable Times
TL/F/11654–14
FIGURE 4. Rise, Fall Time and Propagation Delay Waveforms
8
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