74LS848 datasheet(4/6 Pages) MOTOROLA

Part #	74LS848

Description	8-INPUT PRIORITY ENCODERS WITH 3-STATE OUTPUTS

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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4 / 6 page

5-502

FAST AND LS TTL DATA

SN54/74LS348

• SN54/74LS848

AC CHARACTERISTICS (VCC = 5.0 V, TA = 25°C)

Symbol

From

(Input)

To

(Output)

Waveform

LS348

Limits

LS848

Limits

Unit

Test Conditions

Symbol

From

(Input)

To

(Output)

Waveform

Min

Typ

Max

Min

Typ

Max

Unit

Test Conditions

tPLH

1 thru 7

A0, A1 or A2

In-Phase

11

17

12

18

ns

CL = 45 pF

RL = 667 Ω

tPHL

1 thru 7

A0, A1 or A2

output

20

30

20

30

ns

CL = 45 pF

RL = 667 Ω

tPLH

1 thru 7

A0, A1 or A2

Out-of-Phase

23

35

23

35

ns

CL = 45 pF

RL = 667 Ω

tPHL

1 thru 7

A0, A1 or A2

output

23

35

23

35

ns

CL = 45 pF

RL = 667 Ω

tPZH

EI

A0, A1 or A2

25

39

25

39

ns

tPZL

EI

A0, A1 or A2

24

41

24

41

ns

tPLH

0 thru 7

E0

Out-of-Phase

11

18

11

18

ns

CL = 15 pF

RL = 2.0 Ω

tPHL

0 thru 7

E0

output

26

40

26

40

ns

CL = 15 pF

RL = 2.0 Ω

tPLH

0 thru 7

GS

In-Phase

38

55

38

55

ns

CL = 15 pF

RL = 2.0 Ω

tPHL

0 thru 7

GS

output

9.0

21

9.0

21

ns

CL = 15 pF

RL = 2.0 Ω

tPLH

EI

GS

In-Phase

11

17

11

17

ns

CL = 15 pF

RL = 2.0 Ω

tPHL

EI

GS

output

14

36

14

36

ns

tPLH

EI

EO

In-Phase

17

21

17

21

ns

tPHL

EI

EO

output

25

40

30

45

ns

tPHZ

EI

A0, A1 or A2

18

27

18

27

ns

CL = 5.0 pF

RL = 667 Ω

tPLZ

EI

A0, A1 or A2

23

35

23

35

ns

CL = 5.0 pF

RL = 667 Ω

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