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74LS154 Datasheet

  • 74LS154

  • 4-Line to 16-Line Decoders/Demultiplexers

  • 123.73KB

  • 6頁

  • NSC

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DM54LS154 DM74LS154 4-Line to 16-Line Decoders Demultiplexers
May 1989
DM54LS154 DM74LS154 4-Line to 16-Line
Decoders Demultiplexers
General Description
Each of these 4-line-to-16-line decoders utilizes TTL circuit-
ry to decode four binary-coded inputs into one of sixteen
mutually exclusive outputs when both the strobe inputs G1
and G2 are low The demultiplexing function is performed
by using the 4 input lines to address the output line passing
data from one of the strobe inputs with the other strobe
input low When either strobe input is high all outputs are
high These demultiplexers are ideally suited for implement-
ing high-performance memory decoders All inputs are buff-
ered and input clamping diodes are provided to minimize
transmission-line effects and thereby simplify system de-
sign
Features
Y
Y
Y
Y
Y
Y
Decodes 4 binary-coded inputs into one of 16 mutually
exclusive outputs
Performs the demultiplexing function by distributing data
from one input line to any one of 16 outputs
Input clamping diodes simplify system design
High fan-out low-impedance totem-pole outputs
Typical propagation delay
3 levels of logic 23 ns
Strobe 19 ns
Typical power dissipation 45 mW
Connection and Logic Diagrams
Dual-In-Line Package
TL F 6394鈥?
Order Number DM54LS154J
DM74LS154WM or DM74LS154N
See NS Package Number J24A M24B or N24A
TL F 6394 鈥?2
C
1995 National Semiconductor Corporation
TL F 6394
RRD-B30M105 Printed in U S A

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