5442A Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – BCD to Decimal Decoders

June 1989
5442A DM5442A DM7442A
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 Military Aerospace device (5442A) is avail-}
able Contact a National Semiconductor Sales Office
Distributor for specifications
Connection Diagram
Dual-In-Line Package
TL F 6516 – 1
Order Number 5442ADMQB 5442AFMQB DM5442AJ DM5442AW or DM7442AN
See NS Package Number J16A N16E or W16A
Function Table
No
BCD Input
Decimal Output
DCBA0 1 2 3 4 5 6 7 8 9
0 L L L L LHHHHHHHHH
1 L L LHHLHHHHHHHH
2 L LHLHHLHHHHHHH
3 L LHHHHHLHHHHHH
4 LHL LHHHHLHHHHH
5 LHLHHHHHHLHHHH
6 LHHLHHHHHHLHHH
7 LHHHHHHHHHHLHH
8 HL L LHHHHHHHHLH
9 HL LHHHHHHHHHHL
I HLHLHHHHHHHHHH
N HLHHHHHHHHHHHH
V HHL LHHHHHHHHHH
A HHLHHHHHHHHHHH
L HHHLHHHHHHHHHH
I HHHHHHHHHHHHHH
D
H e High Level
L e Low Level
C1995 National Semiconductor Corporation TL F 6516
RRD-B30M105 Printed in U S A