’150 Switching Characteristics
at V
CC
e
5V and T
A
e
25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Parameter
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
From (Input)
To (Output)
Select
to W
Select
to W
Strobe
to W
Strobe
to W
E0-E15
to W
E0-E15
to W
R
L
e
400X C
L
e
15 pF
Min
Max
35
33
24
30
20
14
ns
ns
ns
ns
ns
ns
Units
Recommended Operating Conditions
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Parameter
Min
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
b
55
DM54151A
Nom
5
Max
55
Min
4 75
2
08
b
0 8
DM74151A
Nom
5
Max
5 25
Units
V
V
08
b
0 8
45
2
V
mA
mA
C
16
125
0
16
70
3
NSC [ NATIONAL SEMICONDUCTOR ]
