IN74AC163
TIMING REQUIREMENTS
(C
L
=50pF,Input t
r
=t
f
=3.0 ns)
V
CC
Symbol
t
su
t
h
t
SU
t
h
t
su
t
h
t
su
t
h
t
w
t
w
Parameter
Minimum Setup Time, Preset Data Inputs to
Clock (Figure 4)
Minimum Hold Time, Clock to Preset Data Inputs
(Figure 4)
Minimum Setup Time, Reset to Clock
(Figure 3)
Minimum Hold Time, Clock to Reset (Figure 3)
Minimum Setup Time, Load to Clock (Figure 5)
Minimum Hold Time, Clock to Load or Preset
Data Inputs (Figure 5)
Minimum Setup Time, Enable T or Enable P to
Clock (Figure 5)
Minimum Hold Time, Clock to Enable T or
Enable P (Figure 5)
Minimum Pulse Width, (Load) (Figure 3)
Minimum Pulse Width, (Count) (Figure 3)
V
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Guaranteed Limit
+25° C
13.5
8.5
-1.0
0
14
9.5
-1.0
-0.5
11.5
7.5
-1.0
-0.5
6.0
4.5
0
0
3.5
2.5
4.0
3.0
-40° C
to +85° C
16.0
10.5
-0.5
0
16.5
11.0
-0.5
0
14.0
8.5
-0.5
0
7.0
5.0
0
0.5
4.0
3.0
4.5
3.5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
