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IN74ACT251

8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

Integral Corp. 

IN74ACT251

AC ELECTRICAL CHARACTERISTICS(VCC=5.0 V ± 10%, CL=50pF, Input tr=tf=3.0 ns)

Guaranteed Limits

Symbol

Parameter

25 °C

-40°C to

Unit

85°C

Min Max Min Max

tPLH Propagation Delay, Input A to 2.5 15.5 2.0 17.0 ns

Output Y or Y (Figure 3)

tPHL Propagation Delay, Input A to 2.5 16.5 2.5 18.5 ns

Output Y or Y (Figure 3)

tPLH Propagation Delay, Input D to 2.5 12.0 2.0 13.0 ns

Output Y or Y (Figures 1,2)

tPHL Propagation Delay, Input D to 2.5 12.5 2.5 14.0 ns

Output Y or Y (Figures 1,2)

tPZH Propagation Delay, Output Enable to 1.5 8.5 1.5 9.0

ns

Output Y or Y (Figure 4)

tPZL Propagation Delay, Output Enable to 1.5 8.5 1.5 9.5

ns

Output Y or Y (Figure 4)

tPHZ Propagation Delay, Output Enable to 2.0 12.0 2.0 13.0 ns

Output Y or Y (Figure 4)

tPLZ Propagation Delay, Output Enable to 1.5 8.5 1.5 9.0

ns

Output Y or Y (Figure 4)

CIN Maximum Input Capacitance

4.5

4.5

pF

CPD Power Dissipation Capacitance

Typical @25°C,VCC=5.0

V

70

pF

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

4

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