Switching Characteristics
at V
CC
e
5V and T
A
e
25 C (See Section 1 for Test Waveforms and Output Load)
R
L
e
400X
Symbol
Parameter
Min
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Output Enable Time to
High Level Output
Output Enable Time to
Low Level Output
Output Disable Time from
High Level Output
Output Disable Time from
Low Level Output
8
14
C
L
e
5 pF
Max
C
L
e
50 pF
Min
Max
15
18
18
25
ns
ns
ns
ns
ns
ns
Units
Physical Dimensions
inches (millimeters)
14-Lead Ceramic Dual-In-Line Package (J)
Order Number 54125DMQB or DM54125J
NS Package Number J14A
3
NSC [ NATIONAL SEMICONDUCTOR ]
