SL74HCT138 데이터 시트보기 (PDF) - System Logic Semiconductor

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SL74HCT138

1- of-8 Decoder/Demultiplexer

System Logic Semiconductor 

SL74HCT138

AC ELECTRICAL CHARACTERISTICS(VCC =5.0 V, CL=50pF,Input tr=tf=6.0 ns)

Guaranteed Limit

Symbol

Parameter

25 °C to ≤85°C ≤125°C Unit

-55°C

tPLH, tPHL Maximum Propagation Delay, Input A to

Output Y (Figures 1 and 4)

30

38

45

ns

tPLH, tPHL Maximum Propagation Delay , CS1 to

Output Y (Figures 2 and 4)

27

34

41

ns

tPLH, tPHL Maximum Output Transition Time , CS2 or CS3 to

30

38

45

ns

Output Y (Figures 3 and 4)

tTLH, tTHL Maximum Output Transition Time, Any Output

(Figures 2 and 4)

15

19

22

ns

CIN

Maximum Input Capacitance

10

10

10

pF

Power Dissipation Capacitance (Per Enabled

Output)

CPD Used to determine the no-load dynamic power

consumption:

PD=CPDVCC2f+ICCVCC

Typical @25°C,VCC=5.0 V

51

pF

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

SLS

System Logic

Semiconductor

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