SL74LS157 데이터 시트보기 (PDF) - System Logic Semiconductor

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SL74LS157

Quad 2-Input Data Selector/Multiplexer

System Logic Semiconductor 

SL74LS157

AC ELECTRICAL CHARACTERISTICS (TA=25°C, VCC = 5.0 V, CL = 15 pF, RL = 2 kΩ, tr =15

ns, tf = 6.0 ns)

Symbol

Parameter

Min

Max

Unit

tPLH Propagation Delay, Input A or B to Output Y

14

ns

tPHL Propagation Delay, Input A or B to Output Y

14

ns

tPLH Propagation Delay, Select to Output Y

23

ns

tPHL Propagation Delay, Select to Output Y

27

ns

tPLH Propagation Delay, Output Enable to Output Y

20

ns

tPHL Propagation Delay, Output Enable to Output Y

21

ns

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

NOTES A. CL includes probe and jig capacitance.

B. All diodes are 1N916 or 1N3064.

Figure 3. Test Circuit

SLS

System Logic

Semiconductor

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