5-227

FAST AND LS TTL DATA

SN54/74LS137

Symbol

Parameter

Limits

Unit

Test Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

VIL

Input LOW Voltage

54

0.7

V

Guaranteed Input LOW Voltage for

All Inputs

VIL

Input LOW Voltage

74

0.8

V

Guaranteed Input LOW Voltage for

All Inputs

VIK

Input Clamp Diode Voltage

– 0.65

– 1.5

V

VCC = MIN, IIN = – 18 mA

VOH

Output HIGH Voltage

54

2.5

3.5

V

VCC = MIN, IOH = MAX, VIN = VIH

or VIL per Truth Table

VOH

Output HIGH Voltage

54

2.5

3.5

V

VCC = MIN, IOH = MAX, VIN = VIH

or VIL per Truth Table

VOH

Output HIGH Voltage

74

2.7

3.5

V

VCC = MIN, IOH = MAX, VIN = VIH

or VIL per Truth Table

VOL

Output LOW Voltage

54, 74

0.25

0.4

V

IOL = 4.0 mA

VCC = VCC MIN,

VIN = VIL or VIH

per Truth Table

VOL

Output LOW Voltage

74

0.35

0.5

V

IOL = 8.0 mA

VIN = VIL or VIH

per Truth Table

IIH

Input HIGH Current

20

µA

VCC = MAX, VIN = 2.7 V

IIH

Input HIGH Current

0.1

mA

VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

– 0.4

mA

VCC = MAX, VIN = 0.4 V

IOS

Short Circuit Current (Note 1)

– 20

–100

mA

VCC = MAX

ICC

Power Supply Current

18

mA

VCC = MAX

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.

Symbol

Parameter

Levels of

Delay

Limits

Unit

Test Conditions

Symbol

Parameter

Levels of

Delay

Min

Typ

Max

Unit

Test Conditions

tPLH

tPHL

Propagation Delay Time, A, B, C to Y

2

4

11

25

17

38

ns

VCC = 5.0 V

CL = 15 pF

tPLH

tPHL

Propagation Delay Time, A, B, C to Y

3

3

16

19

24

29

ns

VCC = 5.0 V

CL = 15 pF

tPLH

tPHL

Propagation Delay Time, Enable G2 to Y

2

2

13

16

21

27

ns

VCC = 5.0 V

CL = 15 pF

tPLH

tPHL

Propagation Delay Time, Enable G1 to Y

3

3

14

18

21

27

ns

tPLH

tPHL

Propagation Delay Time, Enable GL to Y

3

4

18

25

27

38

ns

Symbol

Parameter

Limits

Unit

Test Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

tW

Pulse Width — Enable at GL

15

ns

VCC = 5.0 V

ts

Setup Time, A, B, C

10

ns

VCC = 5.0 V

th

Hold Time, A, B, C

10

ns

CC = 5.0 V