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IN74LS244 Datasheet(PDF) 4 Page - Integral Corp.

Part No. IN74LS244
Description  Octal 3-State Noninverting Buffer/Line Driver/Line Receiver
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Maker  INTEGRAL [Integral Corp.]
Homepage  http://www.iksemi.com/
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IN74LS244 Datasheet(HTML) 4 Page - Integral Corp.

   
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IN74LS244
4
AC ELECTRICAL CHARACTERISTICS (T
A = 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 Ω
18
ns
tPZH
Output Enable Time
23
ns
tPZL
Output Enable Time
30
ns
tPHZ
Output Disable Time
CL = 5 pF
18
ns
tPLZ
Output Disable Time
RL = 667 Ω
25
ns
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


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