SL74LS244
note 1: Not more than one output should be shorted at a time, and duration of the short-circuit should not exceed
one second
AC ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5.0 V, tr = 15 ns,
tf = 6.0 ns)
Symbol
Parameter
Test Condition
Min
Max
Unit
tPLH
Propagation Delay, Data to
Output
18
ns
tPHL
Propagation Delay, Data to
Output
CL = 45 pF,
RL = 667 W
18
ns
tPZH
tPZL
tPHZ
tPLZ
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
23
30
18
25
ns
ns
ns
ns
CL = 5 pF
RL = 667 W
tPZL - S1 closed, S2 opened
tPZH- S1 opened, S2 closed
tPLZ, tPHZ - S1 and S2 closed
Figure 1. Switching Waveforms
(See Figure 3)
Figure 2. Switching Waveforms
(See Figure 4)
NOTES A. CL includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
NOTES A. CL includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 3. Test Circuit
Figure 4. Test Circuit
System Logic
SLS
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
