SL74HC258D Просмотр технического описания (PDF) - System Logic Semiconductor

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SL74HC258D

Quad 2-Input Data Selectors/Multiplexer with 3-State Outputs

System Logic Semiconductor 

SL74HC258

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

Symbol

Parameter

tPLH, tPHL Maximum Propagation Delay, Nibble A or B to

Output Y (Figures 1and 4)

tPLH, tPHL Maximum Propagation Delay , Select to

Output Y (Figures 2 and 4)

tPLZ, tPHZ Maximum Propagation Delay , Output Enable to

Output Y (Figures 3 and 5)

tPZL, tPZH Maximum Propagation Delay , Output Enable to

Output Y (Figures 3 and 5)

tTLH, tTHL Maximum Output Transition Time, Any Output

(Figures 1 and 4)

CIN

Maximum Input Capacitance

COUT Maximum Three-State Output Capacitance

(Output in High-Impedance State)

VCC

Guaranteed Limit

V 25 °C to ≤85°C ≤125°C Unit

-55°C

2.0 100

125

150

ns

4.5 20

25

30

6.0 17

21

26

2.0 160

200

240

ns

4.5 32

40

48

6.0 18

35

42

2.0 150

190

225

ns

4.5 30

38

45

6.0 26

33

38

2.0 110

140

165

ns

4.5 22

28

34

6.0 20

25

30

2.0 60

75

90

ns

4.5 12

15

18

6.0 10

13

15

-

10

10

10

pF

-

15

15

15

pF

Power Dissipation Capacitance (Per Package)

CPD Used to determine the no-load dynamic power

consumption:

PD=CPDVCC2f+ICCVCC

Typical @25°C,VCC=5.0 V

59

pF

Figure 1. Switching Waveforms

SLS

System Logic

Semiconductor

Figure 2. Switching Waveforms

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