IN74ALS244DW 데이터 시트보기 (PDF) - Integral Corp.
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IN74ALS244DW Datasheet PDF : 4 Pages
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IN74ALS244
AC ELECTRICAL CHARACTERISTICS over full operating conditions (VCC = 5.0 V±10%,
CL = 50 pF, RL1 =RL2 = 500 Ω, Input tr = tf = 2.0 ns)
Symbol
Parameter
Min
Max
Unit
tPLH Propagation Delay, Data to Output
10
ns
tPHL Propagation Delay, Data to Output
10
ns
tPZH Output Enable Time
20
ns
tPZL Output Enable Time
20
ns
tPHZ Output Disable Time
40
ns
tPLZ Output Disable Time
25
ns
Figure 1. Switching Waveforms
tPZL, tPLZ - S1 closed
tPZH, tPHZ - S1 opened
Figure 2. Switching Waveforms
* Includes all probe and jig capacitance.
Figure 3. Test Circuit
* Includes all probe and jig capacitance.
Figure 4. Test Circuit
3
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