IN74AC163
TIMING REQUIREMENTS (CL=50pF,Input tr=tf=3.0 ns)
Symbol
VCC
Parameter
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, Reset to Clock
3.3
(Figure 3)
5.0
th
Minimum Hold Time, Clock to Reset (Figure 3) 3.3
5.0
tsu
Minimum Setup Time, Load to Clock (Figure 5) 3.3
5.0
th
Minimum Hold Time, Clock to Load or Preset
3.3
Data Inputs (Figure 5)
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, (Load) (Figure 3)
3.3
5.0
tw
Minimum Pulse Width, (Count) (Figure 3)
3.3
5.0
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
14
16.5
ns
9.5
11.0
-1.0
-0.5
ns
-0.5
0
11.5
14.0
ns
7.5
8.5
-1.0
-0.5
ns
-0.5
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
233