IN74ALS244DW 데이터 시트보기 (PDF) - Integral Corp.

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IN74ALS244DW

Octal 3-State Noninverting Buffer/Line Driver/Line Receiver

Integral Corp. 

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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