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DM74LS55 Datasheet(数据表) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件型号  DM74LS55
说明  2-Wide, 4-Input AND-OR-INVERT Gate
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 

   
 1 page
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TLF10174
April 1992
DM54LS55DM74LS55
2-Wide 4-Input AND-OR-INVERT Gate
General Description
This device contains a combination of AND-OR-INVERT
functions
The internal gates are configured as two
four-input AND gates with their outputs connected to a
two-input NOR gate
Connection Diagram
Dual-In-Line Package
TLF10174 – 1
Order Number DM54LS55J DM54LS55W DM74LS55M or DM74LS55N
See NS Package Number J14A M14A N14A or W14B
Function Table
Y e ABCD a EFGH
Inputs
Output
ABCD
E
F
G
H
Y
HHHH
X
X
X
X
L
XXXX
H
H
H
H
L
All Other Combinations
H
H e High Logic Level
L e Low Logic Level
X e Either Low or High Logic Level
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A




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