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기능 Quad 2-Input NAND Gates with Open-Collector Outputs
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DM7403N 데이터시트, 핀배열, 회로
June 1989
DM5403 DM7403 Quad 2-Input NAND Gates
with Open-Collector Outputs
General Description
This device contains four independent gates each of which
performs the logic NAND function The open-collector out-
puts require external pull-up resistors for proper logical op-
eration
Pull-Up Resistor Equations
RMAX
e
VCC (Min) b VOH
N1 (IOH) a N2 (IIH)
RMIN
e
VCC (Max) b VOL
IOL b N3 (IIL)
Where N1 (IOH) e total maximum output high current for all
outputs tied to pull-up resistor
N2 (IIH) e total maximum input high current for all
inputs tied to pull-up resistor
N3 (IIL) e total maximum input low current for all
inputs tied to pull-up resistor
Connection Diagram
Dual-In-Line Package
Function Table
Order Number DM5403J or DM7403N
See NS Package Number J14A or N14A
Y e AB
Inputs
Output
AB
Y
LL
LH
HL
HH
H
H
H
L
H e High Logic Level
L e Low Logic Level
TL F 6493 – 1
C1995 National Semiconductor Corporation TL F 6493
RRD-B30M105 Printed in U S A




DM7403N pdf, 반도체, 판매, 대치품
Physical Dimensions inches (millimeters) (Continued)
14-Lead Molded Dual-In-Line Package (N)
Order Number DM7403N
NS Package Number N14A
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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
effectiveness
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