IN74LV138 View Datasheet(PDF) - Integral Corp.

Part Name

Description

Manufacturer

IN74LV138

3-to-8 line decoder/demultiplexer; inverting

Integral Corp. 

IN74LV138

AC ELECTRICAL CHARACTERISTICS (CL=50 pF, tLH = tHL = 2.5 nc, VIL=0B, VIH=VCC)

Symbol

Parameter

VCC

Guaranteed Limit

Unit

V

25°C

îò -40°C to

îò -40°C to

85°C

125°C

min max min max min max

tPLH, tPHL Propagation delay,

1.2

-

150

-

150

-

180

ns

input A to output Y

2.0

33

36

44

(Figures 1)

2.7

23

26

33

3.0

19

21

26

4.5

14

16

20

tPLH, tPHL Propagation delay ,

1.2

-

170

-

170

-

200

ns

CS1 to

2.0

35

39

49

output Y

2.7

26

29

36

(Figures 2)

3.0

21

23

29

4.5

17

19

24

tPLH, tPHL Output transition

time, CS2 or CS3 to

output Y (Figures 3)

-

170

-

170

-

200

ns

35

39

49

26

29

36

21

23

29

17

19

24

CIN

Input capacitance

5.0

Ò=+25 îÑ

7.0

pF

Power dissipation capacitance (per enabled

output)

CPD Used to determine the no-load dynamic power

consumption:

PD=CPDVCC2f+ICCVCC

Typical @25°C,VCC=5.5 V

90

pF

INPUT

A

50%

tPHL

tPLH

OUTPUT

Y

50%

tr

Vcc

GND

INPUT

CS1

tPHL

OUTPUT

Y

90%

50%

10%

90%

50%

10%

tf

Vcc

GND

tPLH

Figure 1. Switching Waveforms

Figure 2. Switching Waveforms

INTEGRAL

4

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