SL74LS245
Note 1: Not more thanone output should be shorted at a time, and duration of the short-circuit should not exceed
one second.
AC ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
= 5.0 V, t
r
= 15 ns,,
t
f
= 6.0 ns)
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Parameter
Propagation Delay Time, Low-to-High Level
Output (from A or B to Output)
Propagation Delay Time, High-to-Low Level
Output (from A or B to Output)
Output Enable Time to High Level (from OE
to Output)
Output Enable Time to Low Level (from OE
to Output)
Output Disable Time from High Level
(from OE to Output)
Output Disable Time from Low Level
(from OE to Output)
C
L
= 5 pF
R
L
= 667
Ω
25
ns
C
L
= 45 pF,
R
L
= 667
Ω
Test Condition
Min
Max
12
12
40
40
25
Unit
ns
ns
ns
ns
ns
t
PZL
- S1 closed, S2 opened
t
PZH
- S1 opened, S2 closed
t
PLZ
, t
PHZ
- S1 and S2 closed
Figure 1. Switching Waveforms
(See Figure 3)
Figure 2. Switching Waveforms
(See Figure 4)
NOTES A. C
L
includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 3. Test Circuit
NOTES A. C
L
includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 4. Test Circuit
SLS
System Logic
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
