DS75121N National Semiconductor, DS75121N Datasheet

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DS75121N

Manufacturer Part Number
DS75121N
Description
IC LINE DRIVER DUAL 16DIP
Manufacturer
National Semiconductor
Type
Line Driver, Transmitterr
Datasheet

Specifications of DS75121N

Number Of Drivers/receivers
2/0
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Through Hole
Package / Case
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Protocol
-
Other names
*DS75121N

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS75121N
Manufacturer:
EXAR
Quantity:
6 228
Part Number:
DS75121N
Manufacturer:
XICOR
Quantity:
181
C 1996 National Semiconductor Corporation
DS75121 Dual Line Drivers
General Description
The DS75121 is a monolithic dual line driver designed to
drive long lengths of coaxial cable strip line or twisted pair
transmission lines having impedances from 50
is compatible with standard TTL logic and supply voltage
levels
The DS75121 will drive terminated low impedance lines due
to the low-impedance emitter-follower outputs In addition
the outputs are uncommitted allowing two or more drivers to
drive the same line
Output short-circuit protection is incorporated to turn off the
output when the output voltage drops below approximately
1 5V
Connection Diagram
AC Test Circuit and Switching
Time Waveforms
Note 1 The pulse generators have the following characteristics
Z
Note 2 C
OUT
50
L
includes probe and jig capacitance
t
W
See NS Package Number N16A
e
Order Number DS75121N
200 ns duty cycle
Dual-In-Line Package
Top View
TL F 5788
e
50% t
r
e
t
f
e
5 0 ns
to 500
TL F 5788 – 1
It
TL F 5788 – 3
Features
Y
Y
Y
Y
Y
Y
Y
Typical Performance
Characteristics
Truth Table
Designed for digital data transmission over 50
500
sion lines
TTL compatible
Open emitter-follower output structure for party-line
operation
Short-circuit protection
AND-OR logic configuration
High speed (max propagation delay time 20 ns)
Plug-in replacement for the SN75121 and the 8T13
coaxial cable strip line or twisted pair transmis-
RRD-B30M36 Printed in U S A
H
A
H
e
X
High Level L
B
H
X
All Other Input
Combinations
Inputs
C
H
X
e
Low Level X
D
H
X
E
X
H
F
X
H
e
Irrelevant
Output
http
H
H
Y
L
February 1996
www national com
TL F 5788 – 2
TL F 5788 – 4
to

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DS75121N Summary of contents

Page 1

... Output short-circuit protection is incorporated to turn off the output when the output voltage drops below approximately 1 5V Connection Diagram Dual-In-Line Package Top View Order Number DS75121N See NS Package Number N16A AC Test Circuit and Switching Time Waveforms Note 1 The pulse generators have the following characteristics Z ...

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 V CC Input Voltage Output Voltage Output Current Maximum Power Dissipation Molded Package Lead Temperature (Soldering 4 seconds) Derate molded package above 25 C ...

Page 3

3 http www national com ...

Page 4

... 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 Molded Dual-In-Line Packge (N) Order Number DS75121N NS Package Number N16A 2 A critical component is any component of a life ...

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