TLF6516

June 1989

5442ADM5442ADM7442A

BCD to Decimal Decoders

General Description

These BCD-to-decimal decoders consist of eight inverters

and ten four-input NAND gates The inverters are connect-

ed in pairs to make BCD input data available for decoding

by the NAND gates Full decoding of input logic ensures

that all outputs remain off for all invalid (10 – 15) input condi-

tions

Features

Y

Diode clamped inputs

Y

Also for application as 4-line-to-16-line decoders 3-line-

to-8-line decoders

Y

All outputs are high for invalid input conditions

Y

Typical power dissipation 140 mW

Y

Typical propagation delay 17 ns

Y

Alternate MilitaryAerospace device (5442A) is avail-

able Contact a National Semiconductor Sales Office

Distributor for specifications

Connection Diagram

Dual-In-Line Package

TLF6516 – 1

Order Number 5442ADMQB 5442AFMQB DM5442AJ DM5442AW or DM7442AN

See NS Package Number J16A N16E or W16A

Function Table

No

BCD Input

Decimal Output

D

C

B

A

0123456789

0

L

L

L

L

L

HHHHHHHHH

1

L

L

L

HH

L

H

HHHHHHH

2

L

L

H

L

H

H

L

HHHHHHH

3

L

L

HHHHH

L

H

HHHHH

4

L

H

L

L

H

HHH

L

HHHHH

5

L

H

L

HHHHHH

L

H

HHH

6

L

H

HLH

H

H

H

H

HLH

H

H

7

L

HHHHHHHHHH

L

H

H

8

H

L

L

L

H

HHHHHHH

L

H

9

H

L

L

HHHHHHHHHH

L

I

H

L

H

L

H

HHHHHHHHH

N

H

L

HHHHHHHHHHHH

V

H

H

L

L

H

HHHHHHHHH

A

H

H

L

HHHHHHHHHHH

L

H

HH

L

H

HHHHHHHHH

I

H

HHHHHHHHHHHHH

D

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A