DM74LS28 Datasheet, PDF (1/3 Pages) Fairchild Semiconductor – Quad 2-Input NOR Buffer

March 1989
Revised March 2000
DM74LS28
Quad 2-Input NOR Buffer
General Description
The DM74LS28 contains four independent gates each of
which perform the logic NOR function.
Ordering Code:
Order Number Package Number
Package Description
DM74LS28M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Truth Table
Y = A+B
Inputs
A
B
L
L
L
H
H
L
H
H
H = HIGH logic level
L = LOW logic level
Output
Y
H
L
L
L
© 2000 Fairchild Semiconductor Corporation DS010169
www.fairchildsemi.com