DM74LS40 Datasheet, PDF (1/4 Pages) National Semiconductor (TI) – Dual 4-Input NAND Buffer

DM74LS40
Dual 4-Input NAND Buffer
General Description
This device contains two independent gates each of which
perform the logic NAND function
Connection Diagrams
Dual-In-Line Package
February 1992
Function Table
TL F 10171 – 1
Order Number DM74LS40M or DM74LS40N
See NS Package Number M14A or N14A
(Each Gate)
Inputs
Outputs
ABCD
Y
HHHH
L
LXXX
H
XLXX
H
XXLX
H
XXXL
H
Logic Diagram (Each Gate)
TL F 10171 – 2
Positive Logic
Y e A  B  C  D or Y e A a B a C a D
C1995 National Semiconductor Corporation TL F 10171
RRD-B30M105 Printed in U S A