dm74ls125a National Semiconductor Corporation, dm74ls125a Datasheet

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dm74ls125a

Manufacturer Part Number
dm74ls125a
Description
Quad Tri-state Buffers
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
54LS125A DM54LS125A DM74LS125A
Quad TRI-STATE Buffers
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
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
Connection Diagram
Function Table
TRI-STATE is a registered trademark of National Semiconductor Corporation
Order Number 54LS125ADMQB 54LS125AFMQB 54LS125ALMQB
DM54LS125AJ DM54LS125AW DM74LS125AM or DM74LS125AN
TL F 6387
See NS Package Number E20A J14A M14A N14A or W14B
H
L
X
Hi-Z
e
e
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
L
L
Y
e
A
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
Features
Y
Alternate Military Aerospace device (54LS125) is avail-
able Contact a National Semiconductor Sales Office
Distributor for specifications
Output
Hi-Z
Y
H
L
TL F 6387 – 1
RRD-B30M105 Printed in U S A
June 1989

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dm74ls125a Summary of contents

Page 1

... Thus the output will act neither as a significant load nor as a driver To minimize the possibility Connection Diagram Order Number 54LS125ADMQB 54LS125AFMQB 54LS125ALMQB DM54LS125AJ DM54LS125AW DM74LS125AM or DM74LS125AN See NS Package Number E20A J14A M14A N14A or W14B Function Table H ...

Page 2

... V Max Min V Max Max DM54 (Note 2) DM74 b V Max (Note DM74LS125A Units Min Nom Max Typ Max Units (Note ...

Page 3

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

Page 4

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) 14-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS125ADMQB or DM54LS125AJ Order Number 54LS125ALMQB NS Package Number E20A NS Package Number J14A 4 ...

Page 5

... Physical Dimensions inches (millimeters) (Continued) 14-Lead Small Outline Molded Package (M) 14-Lead Molded Dual-In-Line Package (N) Order Number DM74LS125AM NS Package Number M14A Order Number DM74LS125AN NS Package Number N14A 5 ...

Page 6

Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Flat Package (W) Order Number 54LS125AFMQB or DM54LS125AW 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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