SL74HC253N Просмотр технического описания (PDF) - System Logic Semiconductor

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SL74HC253N

Dual 4-Input Data Selector/Multiplexer with 3-State Otputs

System Logic Semiconductor 

SL74HC253

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

Symbol

Parameter

tPLH, tPHL Maximum Propagation Delay, Data to

Output Y (Figures 1 and 3)

tPLH, tPHL Maximum Propagation Delay , Address to

Output Y (Figures 1 and 3)

tPLZ, tPHZ Maximum Propagation Delay ,Output Enable to

Output Y (Figures 2 and 4)

tPZL, tPZH Maximum Propagation Delay ,Output Enable to

Output Y (Figures 2 and 4)

tTLH, tTHL Maximum Output Transition Time, Any Output

(Figures 1 and 3)

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

2.0 140

175

210

ns

4.5 28

35

42

6.0 24

30

36

2.0 175

220

265

ns

4.5 35

44

53

6.0 30

37

45

2.0 150

190

225

ns

4.5 30

38

45

6.0 26

33

38

2.0 100

125

150

ns

4.5 20

25

30

6.0 17

21

26

2.0 75

95

110

ns

4.5 15

19

22

6.0 13

16

19

-

10

10

10

pF

-

15

15

15

pF

Power Dissipation Capacitance (Per Muliplexer)

CPD Used to determine the no-load dynamic power

consumption:

PD=CPDVCC2f+ICCVCC

Typical @25°C,VCC=5.0 V

31

pF

Figure 1. Switching Waveforms

SLS

System Logic

Semiconductor

Figure 2. Switching Waveforms

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