MM54C42 MM74C42 BCD-to-Decimal Decoder
March 1988
MM54C42 MM74C42 BCD-to-Decimal Decoder
General Description
The MM54C42 MM74C42 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 鈥樷€?鈥欌€?at the output corre-
sponding to a four bit binary input from zero to nine and a
logical 鈥樷€?鈥欌€?at the other outputs For binary inputs from ten to
fifteen all outputs are logical 鈥樷€?鈥欌€?/div>
Y
Y
Y
High noise immunity
Low power
Medium speed operation
0 45 V
CC
(typ )
50 nW (typ )
10 MHz (typ )
with 10V V
CC
Applications
Y
Y
Y
Features
Y
Y
Supply voltage range
Tenth power TTL
compatible
3V to 15V
drive 2 LPTTL loads
Y
Automotive
Data terminals
Instrumentation
Medical electronics
Y
Y
Y
Y
Alarm systems
Industrial electronics
Remote metering
Computers
Schematic Diagram
TL F 5882 鈥?1
Truth Table
Inputs
D
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
C
1995 National Semiconductor Corporation
Outputs
A
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
5
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
6
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
7
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
8
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
9
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
RRD-B30M105 Printed in U S A
C
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
TL F 5882
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