IN74AC161 查看數據表（PDF） - Integral Corp.
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IN74AC161 Datasheet PDF : 8 Pages
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IN74AC161
TIMING REQUIREMENTS (CL=50pF,Input tr=tf=3.0 ns)
Symbol
Parameter
VCC*
V
tsu
Minimum Setup Time, Preset Data Inputs to
3.3
Clock (Figure 4)
5.0
th
Minimum Hold Time, Clock to Preset Data Inputs 3.3
(Figure 4)
5.0
tsu
Minimum Setup Time,Load to Clock (Figure 4)
3.3
5.0
th
Minimum Hold Time, Clock to Load (Figure 4)
3.3
5.0
tsu
Minimum Setup Time, Enable T or Enable P to
3.3
Clock (Figure 5)
5.0
th
Minimum Hold Time, Clock to Enable T or
3.3
Enable P (Figure 5)
5.0
tw
Minimum Pulse Width, Clock (Load) (Figure 1)
3.3
5.0
tw
Minimum Pulse Width, Clock (Count)(Figure 1)
3.3
5.0
tw
Minimum Pulse Width, Reset (Figure 2)
3.3
5.0
trec
Minimum Recovery Time, Reset to Clock (Figure 3.3
2)
5.0
*Voltage Range 3.3 V is 3.3 V ±0.3 V
Voltage Range 5.0 V is 5.0 V ±0.5 V
Guaranteed Limit
+25° C
-40° C
Unit
to +85° C
13.5
16.0
ns
8.5
10.5
-1.0
-0.5
ns
0
0
11.5
14.0
ns
7.5
8.5
0
0
ns
0.5
1.0
6.0
7.0
ns
4.5
5.0
0
0
ns
0
0.5
3.5
4.0
ns
2.5
3.0
4.0
4.5
ns
3.0
3.5
5.5
7.5
ns
4.5
6.0
-0.5
0
ns
0
0.5
217
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