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Numéro de référence | 5409DMQB | ||
Description | Quad 2-Input AND Gates with Open-Collector Outputs | ||
Fabricant | National Semiconductor | ||
Logo | |||
1 Page
June 1989
5409 DM7409 Quad 2-Input AND Gates
with Open-Collector Outputs
General Description
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
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
TL F 6499 – 1
Order Number 5409DMQB 5409FMQB or DM7409N
See NS Package Number J14A N14A or W14B
Y e AB
Inputs
AB
LL
LH
HL
HH
H e High Logic Level
L e Low Logic Level
Output
Y
L
L
L
H
C1995 National Semiconductor Corporation TL F 6499
RRD-B30M105 Printed in U S A
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Pages | Pages 4 | ||
Télécharger | [ 5409DMQB ] |
No | Description détaillée | Fabricant |
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