dm74ls241 National Semiconductor Corporation, dm74ls241 Datasheet

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dm74ls241

Manufacturer Part Number
dm74ls241
Description
Octal Tri-state Buffers/line Drivers/line Receivers
Manufacturer
National Semiconductor Corporation
Datasheet
C 1995 National Semiconductor Corporation
DM54LS240 DM74LS240
DM54LS241 DM74LS241
Octal TRI-STATE Buffers Line Drivers Line Receivers
General Description
These buffers line 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 transmitters receivers 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
Y
Y
Connection Diagrams
Function Tables
TRI-STATE is a registered trademark of National Semiconductor Corporation
TRI-STATE outputs drive bus lines directly
PNP inputs reduce DC loading on bus lines
Hysteresis at data inputs improves noise margins
See NS Package Number E20A J20A
DM74LS240WM or DM74LS240N
DM54LS240W DM54LS240E
Order Number DM54LS240J
LS240
Dual-In-Line Package
M20B N20A or W20A
G
H
L
L
Inputs
A
H
X
L
TL F 6411
Output
H
Y
L
Z
L
H
X
Z
TL F 6411 – 1
e
e
e
e
Low Logic Level
Either Low or High Logic Level
High Impedance
High Logic Level
Y
Y
Y
Y
Y
LS241
Typical I
Typical I
Typical propagation delay times
Typical enable disable time 18 ns
Typical power dissipation (enabled)
G
X
X
X
H
H
L
54LS
74LS
54LS
74LS
Inverting
Noninverting
Inverting
Noninverting
See NS Package Number E20A J20A
OL
OH
DM74LS241WM or DM74LS241N
G
H
L
L
X
X
X
(sink current)
12 mA
24 mA
b
b
DM54LS241W DM54LS241E
(source current)
Order Number DM54LS241J
Inputs
12 mA
15 mA
Dual-In-Line Package
M20B N20A or W20A
10 5 ns
12 ns
130 mW
135 mW
1A
H
X
X
X
X
L
2A
X
X
X
H
X
L
RRD-B30M105 Printed in U S A
1Y
H
Z
L
Outputs
April 1992
TL F 6411 – 2
2Y
H
Z
L

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dm74ls241 Summary of contents

Page 1

... Typical enable disable time Typical power dissipation (enabled) Y Inverting 130 mW Noninverting 135 mW Dual-In-Line Package TL F 6411 – 1 Order Number DM54LS241J DM54LS241W DM54LS241E DM74LS241WM or DM74LS241N See NS Package Number E20A J20A M20B N20A or W20A LS241 Inputs ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Operating Free Air Temperature Range DM54LS 54LS DM74LS Storage Temperature Range Recommended Operating Conditions ...

Page 3

Switching Characteristics Symbol Parameter t Propagation Delay Time PLH Low to High Level Output t Propagation Delay Time PHL High to Low Level Output t Output Enable Time to PZL Low Level t Output Enable Time to PZH High Level ...

Page 4

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) Order Number DM54LS240E or DM54LS241E 20-Lead Ceramic Dual-In-Line Package (J) Order Number DM54LS240J or DM54LS241J NS Package Number E20A NS Package Number J20A 4 ...

Page 5

... Physical Dimensions inches (millimeters) (Continued) 20-Lead Wide Small Outline Molded Package (M) Order Number DM74LS240WM or DM74LS241WM 20-Lead Molded Dual-In-Line Package (N) Order Number DM74LS240N or DM74LS241N NS Package Number M20B NS Package Number N20A 5 ...

Page 6

Physical Dimensions inches (millimeters) (Continued) 20-Lead Ceramic Flat Package (W) Order Number DM54LS240W or DM54LS241W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF ...

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