74LS253 Просмотр технического описания (PDF) - Fairchild Semiconductor

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74LS253

3-STATE Data Selector/Multiplexer

Fairchild Semiconductor 

Switching Characteristics

at VCC = 5V and TA = 25°C

Symbol

Parameter

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

tPLH

Propagation Delay Time

LOW-to-HIGH Level Output

tPHL

Propagation Delay Time

HIGH-to-LOW Level Output

tPZH

Output Enable Time to

HIGH Level Output

tPZL

Output Enable Time to

LOW Level Output

tPHZ

Output Disable Time from

HIGH Level Output (Note 6)

tPLZ

Output Disable Time from

LOW Level Output (Note 6)

Note 6: CL = 5 pF.

From (Input)

To (Output)

Data to Y

Data to Y

Select to Y

Select to Y

Output

Control to Y

Output

Control to Y

Output

Control to Y

Output

Control to Y

RL = 667Ω

CL = 45 pF

CL = 150 pF

Min

Max

Min

Max

25

35

20

30

45

54

32

44

18

32

23

35

41

27

Units

ns

ns

ns

ns

ns

ns

ns

ns

www.fairchildsemi.com

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