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DM54LS240W Folha de dados(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças DM54LS240W
Descrição Electrónicos  Octal TRI-STATE Buffers/Line Drivers/Line Receivers
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

DM54LS240W Folha de dados(HTML) 1 Page - National Semiconductor (TI)

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TLF6411
April 1992
DM54LS240DM74LS240
DM54LS241DM74LS241
Octal TRI-STATE
BuffersLine DriversLine Receivers
General Description
These buffersline drivers are designed to improve both the
performance and PC board density of TRI-STATE buffers
drivers employed as memory-address drivers clock drivers
and bus-oriented transmittersreceivers Featuring 400 mV
of hysteresis at each low current PNP data line input they
provide improved noise rejection and high fanout outputs
and can be used to drive terminated lines down to 133X
Features
Y
TRI-STATE outputs drive bus lines directly
Y
PNP inputs reduce DC loading on bus lines
Y
Hysteresis at data inputs improves noise margins
Y
Typical IOL (sink current)
54LS
12 mA
74LS
24 mA
Y
Typical IOH (source current)
54LS
b
12 mA
74LS
b
15 mA
Y
Typical propagation delay times
Inverting
105 ns
Noninverting
12 ns
Y
Typical enabledisable time 18 ns
Y
Typical power dissipation (enabled)
Inverting
130 mW
Noninverting
135 mW
Connection Diagrams
Dual-In-Line Package
TLF6411 – 1
Dual-In-Line Package
TLF6411 – 2
Order Number DM54LS240J
DM54LS240W DM54LS240E
DM74LS240WM or DM74LS240N
See NS Package Number E20A J20A
M20B N20A or W20A
Order Number DM54LS241J
DM54LS241W DM54LS241E
DM74LS241WM or DM74LS241N
See NS Package Number E20A J20A
M20B N20A or W20A
Function Tables
LS240
Inputs
Output
G
AY
LL
H
LH
L
HX
Z
LS241
Inputs
Outputs
GG
1A
2A
1Y
2Y
XL
L
X
L
XL
H
X
H
XH
X
X
Z
HX
X
L
L
HX
X
H
H
LX
X
X
Z
L e Low Logic Level
H e High Logic Level
X e Either Low or High Logic Level
Z e High Impedance
TRI-STATE
is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation
RRD-B30M105Printed in U S A


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