DM74LS28 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
DM74LS28M
Package Number
M14A
Package Description
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 鈥淴鈥?to the ordering code.
Connection Diagram
Truth Table
Y
=
A+B
Inputs
A
L
L
H
H
H
=
HIGH logic level
L
=
LOW logic level
Output
B
L
H
L
H
Y
H
L
L
L
漏 2000 Fairchild Semiconductor Corporation
DS010169
www.fairchildsemi.com