54ACT151F datasheet(2/10 Pages) NSC

2 / 10 page

Connection Diagrams

Truth Table

Inputs

Outputs

XXX

LLL

LHLI

HLH

HHHI

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Functional Description

The ’AC/’ACT151 is a logic implementation of a single pole,

8-position switch with the switch position controlled by the

state of three Select inputs, S

0,S1,S2.

Both true and

complementary outputs are provided. The Enable input (E) is

active LOW. When it is not activated, the complementary

output is HIGH and the true output is LOW regardless of all

other inputs. The logic function provided at the output is:

Z = E

• (I

0 • S0 • S1 • S2 +I1 • S0 • S1 • S2 +

2 • S0 • S1 • S2 +I3 • S0 • S1 • S2 +I4 • S0 • S1 • S2 +

5 • S0 • S1 • S2 +I6 • S0 • S1 • S2 +I7 • S0 • S1 • S2)

The ’AC/’ACT151 provides the ability, in one package to se-

lect from eight sources of data or control information. By

proper manipulation of the inputs, the ’AC/’ACT151 can pro-

vide any logic function of four variables and its complement.

Pin Assignment

for DIP and Flatpak

DS100270-2

Pin Assignment

for LCC

DS100270-3

54ACT151F Datasheet(PDF) 2 Page - National Semiconductor (TI)