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DM74LS51 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. DM74LS51
Description  Dual 2-Wide 2-Input, 2-Wide 3-Input AND-OR-INVERT Gate
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74LS51 Datasheet(HTML) 1 Page - Fairchild Semiconductor

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© 2000 Fairchild Semiconductor Corporation
DS006369
www.fairchildsemi.com
August 1986
Revised March 2000
DM74LS51
Dual 2-Wide 2-Input, 2-Wide 3-Input
AND-OR-INVERT Gate
General Description
This device contains two independent combinations of
gates each of which performs the logic AND-OR-INVERT
function. Each package contains one 2-wide 2-input and
one 2-wide 3-input AND-OR-INVERT gates.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
H
= HIGH Logic Level
L
= LOW Logic Level
X
= Either LOW or HIGH Logic Level
Order Number
Package Number
Package Description
DM74LS51M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS51N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Y1
= (A1) (B1) (C1) + (D1) (E1) (F1)
Inputs
Output
A1
B1
C1
D1
E1
F1
Y1
HHH
X
X
X
L
X
X
X
HHH
L
Other Combinations
H
Y2
= ((A2) (B2) + (C2) (D2))
Inputs
Output
A2
B2
C2
D2
Y2
HH
X
X
L
XX
H
H
L
Other combinations
H


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