dm74ls126a National Semiconductor Corporation, dm74ls126a Datasheet

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dm74ls126a

Manufacturer Part Number
dm74ls126a
Description
Quad Tri-state Buffer
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
DM74LS126A Quad TRI-STATE Buffer
General Description
This device contains four independent gates each of which
performs a non-inverting buffer function The outputs have
the TRI-STATE feature When enabled the outputs exhibit
the low impedance characteristics of a standard LS output
with additional drive capability to permit the driving of bus
lines without external resistors When disabled both the
Connection Diagram
Function Table
TRI-STATE is a registered trademark of National Semiconductor Corporation
TL F 6388
Order Number DM74LS126AM or DM74LS126AN
H
L
X
Hi-Z
e
e
See NS Package Number M14A or N14A
e
Low Logic Level
Either Low or High Logic Level
e
High Logic Level
A
H
L
X
TRI-STATE (Outputs are disabled)
Inputs
Dual-In-Line Package
C
H
H
L
Y
e
A
output transistors are turned off presenting a high-imped-
ance state to the bus line Thus the output will act neither as
a significant load nor as a driver To minimize the possibility
that two outputs will attempt to take a common bus to oppo-
site logic levels the disable time is shorter than the enable
time of the outputs
Output
Hi-Z
Y
H
L
TL F 6388 – 1
RRD-B30M105 Printed in U S A
September 1991

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dm74ls126a Summary of contents

Page 1

... TRI-STATE feature When enabled the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the driving of bus lines without external resistors When disabled both the Connection Diagram Order Number DM74LS126AM or DM74LS126AN See NS Package Number M14A or N14A Function Table H e ...

Page 2

Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V High Level Input Voltage IH V Low Level Input Voltage IL ...

Page 3

... Low Level Output (Note 1) Note 1 C 5pF e L Physical Dimensions inches (millimeters) 14-Lead Small Outline Molded Package (M) DM74LS R 667X Min Max Min Order Number DM74LS126AM NS Package Number M14A 3 Units C 150 Max ...

Page 4

... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number DM74LS126AN NS Package Number N14A 2 A critical component is any component of a life ...

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