’174 Switching Characteristics
at V
CC
e
5V and T
A
e
25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
f
MAX
t
PLH
t
PHL
t
PHL
Parameter
Maximum Clock
Frequency
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
High to Low Level Output
Clock to
Any Q
Clock to
Any Q
Clear to
Any Q
From (Input)
To (Output)
R
L
e
400X C
L
e
15 pF
Min
30
25
25
40
Max
MHz
ns
ns
ns
Units
Recommended Operating Conditions
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
f
CLK
t
W
Parameter
Min
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Clock Frequency (Note 1)
Pulse Width
(Note 1)
Clock Low
Clock High
Clear
t
SU
t
H
t
REL
T
A
Data Setup Time (Note 1)
Data Hold Time (Note 1)
Clear Release Time (Note 1)
Free Air Operating Temperature
0
25
10
20
20
0
30
b
55
DM54175
Nom
5
Max
55
Min
4 75
2
08
b
0 8
DM74175
Nom
5
Max
5 25
Units
V
V
08
b
0 8
45
2
V
mA
mA
MHz
16
30
0
25
10
20
20
0
30
125
0
16
30
ns
ns
ns
ns
70
C
Note 1
T
A
e
25 C and V
CC
e
5V
3
NSC [ NATIONAL SEMICONDUCTOR ]
