IN74AC161
TIMING REQUIREMENTS (CL=50pF,Input tr=tf=3.0 ns)
*
VCC
V
Guaranteed Limit
Symbol
Parameter
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
+25° C
-40° C
to +85° C
tsu
th
tsu
th
tsu
th
Minimum Setup Time, Preset Data Inputs to
Clock (Figure 4)
3.3
5.0
13.5
8.5
16.0
10.5
Minimum Hold Time, Clock to Preset Data Inputs
(Figure 4)
3.3
5.0
-1.0
0
-0.5
0
Minimum Setup Time,Load to Clock (Figure 4)
3.3
5.0
11.5
7.5
14.0
8.5
Minimum Hold Time, Clock to Load (Figure 4)
3.3
5.0
0
0.5
0
1.0
Minimum Setup Time, Enable T or Enable P to
Clock (Figure 5)
3.3
5.0
6.0
4.5
7.0
5.0
Minimum Hold Time, Clock to Enable T or
Enable P (Figure 5)
3.3
5.0
0
0
0
0.5
tw
tw
tw
trec
Minimum Pulse Width, Clock (Load) (Figure 1)
Minimum Pulse Width, Clock (Count)(Figure 1)
Minimum Pulse Width, Reset (Figure 2)
3.3
5.0
3.5
2.5
4.0
3.0
3.3
5.0
4.0
3.0
4.5
3.5
3.3
5.0
5.5
4.5
7.5
6.0
Minimum Recovery Time, Reset to Clock (Figure
2)
3.3
5.0
-0.5
0
0
0.5
*Voltage Range 3.3 V is 3.3 V ±0.3 V
Voltage Range 5.0 V is 5.0 V ±0.5 V
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
