SN74LS192

http://onsemi.com

4

MODE SELECT TABLE

MR

PL

MODE

H

X

X

X

Reset (Asyn.)

L

L

X

X

Preset (Asyn.)

L

H

H

H

No Change

L

H

H

Count Up

L

H

H

Count Down

L = LOW Voltage Level

H = HIGH Voltage Level

X = Don’t Care

= LOW-to-HIGH Clock Transition

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

Supply Voltage

54

74

4.5

4.75

5.0

5.0

5.5

5.25

V

Operating Ambient Temperature Range

54

74

−55

0

25

25

125

70

°C

Output Current — High

54, 74

−0.4

mA

Output Current — Low

54

74

4.0

8.0

mA

Symbol

Parameter

Limits

Unit

Test Conditions

Min

Typ

Max

Input HIGH Voltage

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

Input LOW Voltage

54

0.7

V

Guaranteed Input LOW Voltage for

All Inputs

74

0.8

Input Clamp Diode Voltage

−0.65

−1.5

V

Output HIGH Voltage

54

2.5

3.5

V

74

2.7

3.5

V

Output LOW Voltage

54, 74

0.25

0.4

V

per Truth Table

74

0.35

0.5

V

Input HIGH Current

20

μA

0.1

mA

Input LOW Current

−0.4

mA

Short Circuit Current (Note 1)

−20

−100

mA

Power Supply Current

34

mA

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