DM74LS33 Quad 2-Input NOR Buffer with Open-Collector Outputs
March 1989
Revised March 2000
DM74LS33
Quad 2-Input NOR Buffer with Open-Collector Outputs
General Description
This device contains four independent gates each of which
perform the logic NOR function. Outputs are open-collec-
tor.
Ordering Code:
Order Number
DM74LS33M
DM74LS33N
Package Number
M14A
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Function 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
DS010170
www.fairchildsemi.com