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Low Power Schottky Logic – 74LS138

Rev 1.0

21/11/17

PARAMETER

SYMBOL

MIN

MAX

UNITS

Supply Voltage

VCC

4.75

5.25

V

High-Level Input Voltage

VIH

2

-

V

Low-Level Input Voltage

VIL

-

0.8

V

High-Level Output Current

IOH

-

-0.4

mA

Low-Level Output Current

IOL

-

8

mA

Operating Temperature Range

TJ

-40

+85

°C

Recommended Operating Conditions

Absolute Maximum Ratings1

PARAMETER

SYMBOL

VALUE

UNIT

DC Supply Voltage

VCC

7.0

V

DC Input Voltage

VIN

7.0

V

Storage Temperature Range

TSTG

-65 to 150

°C

DC Electrical Characteristics2 T

J = -40°C to 85°C unless otherwise specified

LIMITS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum High-Level

Input Voltage

VIH

-

2

-

-

V

Maximum Low-Level

Input Voltage

VIL

-

-

-

0.8

V

Input Clamp Diode

Voltage

VIK

VCC = MIN

IIN = -18mA

-

-0.65

-1.5

V

Output Voltage High

VOH

VCC = MIN, IOH = MAX

VIN = VIL or VIH

per Function Table

2.7

3.5

-

V

Output Voltage Low

VOL

VCC = MIN

IOH = MAX

VIN = VIL or VIH

per Truth Table

IOL = 8mA

-

0.35

0.5

V

VCC = MAX, VIN = 2.7V

-

-

20

µA

Input High Current

IIH

VCC = MAX, VIN = 7.0V

-

-

0.1

mA

Input Low Current

IIL

VCC = MAX, VIN = 0.4V

-

-

-0.4

mA

Short Circuit Current

3

IOS

VCC = MAX

-20

-

-100

mA

Power Supply

Current (Total)

ICC

VCC = MAX

-

6.3

10

mA

2. All typical values

@ VCC = 5V, TJ = 25°C. 3. Not more than one output should be shorted at a time, nor for more than 1 second.

1. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may

reduce device reliability.