June 1989
5409/DM7409 Quad 2-Input AND Gates
with Open-Collector Outputs
General Description
Pull-Up Resistor Equations
b
This device contains four independent gates each of which
performs the logic AND function. The open-collector out-
puts require external pull-up resistors for proper logical op-
eration.
V
CC
(Min)
V
OH
e
R
MAX
a
N
1
(I
OH
)
N
2
(I
IH
)
b
V
OL
V
(Max)
CC
e
R
MIN
b
I
N
(I )
OL
3
IL
total maximum output high current for all
e
outputs tied to pull-up resistor
Where: N (I
1
)
OH
e
)
IH
N
(I
total maximum input high current for all
2
inputs tied to pull-up resistor
e
inputs tied to pull-up resistor
N
(I
IL
)
total maximum input low current for all
3
Connection Diagram
Dual-In-Line Package
TL/F/6499–1
Order Number 5409DMQB, 5409FMQB or DM7409N
See NS Package Number J14A, N14A or W14B
Function Table
e
Y
AB
Inputs
Output
Y
A
B
L
L
L
H
L
L
L
H
H
L
H
H
e
e
H
L
High Logic Level
Low Logic Level
C
1995 National Semiconductor Corporation
TL/F/6499
RRD-B30M105/Printed in U. S. A.
NSC [ National Semiconductor ]
