IN74HC640ADW 查看數據表（PDF） - Integral Corp.

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IN74HC640ADW

OCTAL 3-STATE INVERTING BUS TRANSCEIVER

Integral Corp. 

IN74HC640A

AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns)

VCC

Guaranteed Limit

Symbol

Parameter

V 25 °C ≤85°C ≤125 Unit

to

°C

-55°C

tPLH, Maximum Propagation Delay, A to B , B 2.0 75

tPHL to A (Figures 1 and 3)

4.5 15

6.0 13

95 110 ns

19

22

16

19

tPLZ, Maximum Propagation Delay , Direction 2.0 110 140 165 ns

tPHZ or Output Enable to A or B (Figures 2 4.5 22

28

33

and 4)

6.0 19

24

28

tPZL, Maximum Propagation Delay , Direction 2.0 110 140 165 ns

tPZH or Output Enable to A or B (Figures 2 4.5 22

28

33

and 4)

6.0 19

24

28

tTLH, tTHL Maximum Output Transition Time, Any 2.0 60

75

90 ns

Output

4.5 12

15

18

(Figures 1 and 3)

6.0 10

13

15

CIN Maximum Input Capacitance (Pin 1 or -

10

10

10 pF

Pin 19)

COUT Maximum Three-State I/O Capacitance -

15

15

15 pF

(Output in High-Impedance State)

Power Dissipation Capacitance (Per Typical @25°C,VCC=5.0 V

Transceiver Channel)

CPD Used to determine the no-load dynamic

40

pF

power

consumption:

PD=CPDVCC2f+ICCVCC

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

4

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