TLF5882

March 1988

MM54C42MM74C42 BCD-to-Decimal Decoder

General Description

The MM54C42MM74C42 one-of-ten decoder is a mono-

lithic complementary MOS (CMOS) integrated circuit con-

structed with N- and P-channel enhancement transistors

This decoder produces a logical ‘‘0’’ at the output corre-

sponding to a four bit binary input from zero to nine and a

logical ‘‘1’’ at the other outputs For binary inputs from ten to

fifteen all outputs are logical ‘‘1’’

Features

Y

Supply voltage range

3V to 15V

Y

Tenth power TTL

drive 2 LPTTL loads

compatible

Y

High noise immunity

Y

Low power

50 nW (typ)

Y

Medium speed operation

10 MHz (typ)

Applications

Y

Automotive

Y

Alarm systems

Y

Data terminals

Y

Industrial electronics

Y

Instrumentation

Y

Remote metering

Y

Medical electronics

Y

Computers

Schematic Diagram

TLF5882 – 1

Truth Table

Inputs

Outputs

DCBA0123456789

0

0

0

0

0111111111

0

0

0

1

1011111111

0

0

1

0

1101111111

0

0

1

1

1110111111

0

1

0

0

1111011111

0

1

0

1

1111101111

0

1

1

0

1111110111

0

1

1

1

1111111011

1

0

0

0

1111111101

1

0

0

1

1111111110

1

0

1

0

1111111111

1

0

1

1

1111111111

1

1

0

0

1111111111

1

1

0

1

1111111111

1

1

1

0

1111111111

1

1

1

1

1111111111

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A