IN74AC240 查看數據表（PDF） - Integral Corp.

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IN74AC240

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

Integral Corp. 

IN74AC240

AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=3.0 ns)

Symbol

Parameter

VCC*

Guaranteed Limits

V

25 °C

-40°C to

Unit

85°C

Min Max Min Max

tPLH Propagation Delay, A to YA or B to YB

(Figure 1)

3.3 1.5 8.0 1.0 9.0 ns

5.0 1.5 6.5 1.0 7.0

tPHL Propagation Delay, A to YA or B to YB

(Figure 1)

3.3 1.5 8.0 1.0 8.5 ns

5.0 1.5 6.0 1.0 6.5

tPZH Propagation Delay, Output Enable to YA or

YB (Figure 2)

3.3 1.5 10.5 1.0 11.0 ns

5.0 1.5 7.0 1.0 8.0

tPZL Propagation Delay, Output Enable to YA or

YB (Figure 2)

3.3 1.5 10.0 1.0 11.0 ns

5.0 1.5 8.0 1.0 8.5

tPHZ Propagation Delay, Output Enable to YA or

YB (Figure 2)

3.3 1.5 10.0 1.0 10.5 ns

5.0 1.5 9.0 1.0 9.5

tPLZ Propagation Delay, Output Enable to YA or

YB (Figure 2)

3.3 1.5 10.5 1.0 11.5 ns

5.0 1.5 9.0 1.0 9.5

CIN Maximum Input Capacitance

5.0

4.5

4.5

pF

CPD Power Dissipation Capacitance

*Voltage Range 3.3 V is 3.3 V ±0.3 V

Voltage Range 5.0 V is 5.0 V ±0.5 V

Typical @25°C,VCC=5.0 V

45

pF

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

305

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