e
e
25 C (See Section 1 for Test Waveforms and Output Load)
Switching Characteristics at V
5V and T
§
CC
A
e
e
L
From (Input)
To (Output)
R
400X, C
15 pF
Max
L
Symbol
Parameter
Units
Min
t
t
t
t
t
t
Propagation Delay Time
Low to High Level Output
Data
to Y
PLH
PHL
PLH
PHL
PLH
PHL
14
14
20
21
23
27
ns
ns
ns
ns
ns
ns
Propagation Delay Time
High to Low Level Output
Data
to Y
Propagation Delay Time
Low to High Level Output
Strobe
to Y
Propagation Delay Time
High to Low Level Output
Strobe
to Y
Propagation Delay Time
Low to High Level Output
Select
to Y
Propagation Delay Time
High to Low Level Output
Select
to Y
Logic Diagram
157
TL/F/6550–2
3
NSC [ National Semiconductor ]
