INPUT AND OUTPUT EQUIVALENT CIRCUIT

TRUTH TABLE

INPUT

O UTPUT

ST ROBE

SELECT

A

B

Y

H

XXX

L

L

LLX

L

LL

H

X

H

LH

X

L

L

LH

X

H

H

X: ”H” or ”L”

ABSOLUTE MAXIMUM RATING

Symbol

Parameter

Val ue

Uni t

Supply Voltage

-0.5 to +7

V

DC Input Voltage

V

DC Output Voltage

V

DC Input Diode Current

± 20

mA

DC Output Diode Current

± 20

mA

DC Output Current

± 50

mA

± 200

mA

Storage Temperature

-65 to +150

Lead Temperature (10 sec)

300

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

PIN DESCRIPTION

PIN No

SYMBOL

NAME AND F UNCTIO N

1

SELECT

Common Data Select Input

2, 5, 11, 14

1A to 4A

Data Inputs From

Source A

3, 6, 10, 13

1B to 4B

Data Inputs From

Source B

4, 7, 9, 12

1Y to 4Y

Multiplexer Outputs

15

STROBE

Strobe Input

8

GND

Ground (0V)

16

Positive Supply Voltage

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Valu e

Uni t

Supply Voltage

4.5 to 5.5

V

Input Voltage

V

Output Voltage

V

Operating Temperature:

-40 to +85

dt/dv

8

ns/V

74ACT157

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