KK74AC643N datasheet(4/6 Pages) KODENSHI

Part #	KK74AC643N

Description	Octal 3-State Bus Transceiver High-Speed Silicon-Gate CMOS

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Manufacturer	KODENSHI [KODENSHI_AUK CORP.]

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KK74AC643

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

VCC

*

Guaranteed Limits

Symbol

Parameter

V

25

°C

-40

°C to

85

°C

Unit

Min

Max

Min

Max

tPLH

Propagation Delay, A to B or B to A

(Figure 1)

3.3

5.0

1.5

8.5

6.5

1.0

9.5

7.5

ns

tPHL

Propagation Delay, A to B or B to A

(Figure 1)

3.3

5.0

1.5

8.5

6.5

1.0

9.5

7.5

ns

tPZH

Propagation Delay, Direction or Output

Enable to A or B (Figure 2)

3.3

5.0

2.5

1.5

12.5

9.5

2.0

1.0

13.5

10.0

ns

tPZL

Propagation Delay, Direction or Output

Enable to A or B (Figure 2)

3.3

5.0

2.5

1.5

12.5

9.5

2.0

1.0

13.5

10.0

ns

tPHZ

Propagation Delay, Direction or Output

Enable to A or B (Figure 2)

3.3

5.0

2.0

1.5

12.0

9.0

1.0

12.5

10.0

ns

tPLZ

Propagation Delay, Direction or Output

Enable to A or B (Figure 2)

3.3

5.0

2.0

1.5

12.0

9.5

1.5

1.0

13.5

10.5

ns

CIN

Maximum Input Capacitance

5.0

4.5

pF

COUT

Maximum Tree-State I/O Capacitance

(Output in High-Impedance State0

5.0

15

pF

Typical @25

°C,V

CC=5.0 V

CPD

Power Dissipation Capacitance

45

pF

*Voltage Range 3.3 V is 3.3 V

±0.3 V

Voltage Range 5.0 V is 5.0 V

±0.5 V

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

4

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