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DS26LS33AC Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer DS26LS33AC
Beschreibung Quad Differential Line Receivers
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
DS26LS33AC Datasheet, Funktion
January 1996
DS26LS32C DS26LS32M DS26LS32AC DS26LS33C
DS26LS33M DS26LS33AC Quad Differential Line
Receivers
General Description
The DS26LS32 and DS26LS32A are quad differential line
receivers designed to meet the RS-422 RS-423 and Feder-
al Standards 1020 and 1030 for balanced and unbalanced
digital data transmission
The DS26LS32 and DS26LS32A have an input sensitivity of
200 mV over the input voltage range of g7V and the
DS26LS33 and DS26LS33A have an input sensitivity of
500 mV over the input voltage range of g15V
Both the DS26LS32A and DS26LS33A differ in function
from the popular DS26LS32 and DS26LS33 in that input
pull-up and pull-down resistors are included which prevent
output oscillation on unused channels
Each version provides an enable and disable function com-
mon to all four receivers and features TRI-STATE outputs
with 8 mA sink capability Constructed using low power
Schottky processing these devices are available over the
full military and commerical operating temperature ranges
Features
Y High differential or common-mode input voltage ranges
of g7V on the DS26LS32 and DS26LS32A and g15V
on the DS26LS33 and DS26LS33A
Y g0 2V sensitivity over the input voltage range on the
DS26LS32 and DS26LS32A g0 5V sensitivity on the
DS26LS33 and DS26LS33A
Y DS26LS32 and DS26LS32A meet all requirements of
RS-422 and RS-423
Y 6k minimum input impedance
Y 100 mV input hysteresis on the DS26LS32 and
DS26LS32A 200 mV on the DS26LS33 and
DS26LS33A
Y Operation from a single 5V supply
Y TRI-STATE outputs with choice of complementary out-
put enables for receiving directly onto a data bus
Logic Diagram
Connection Diagram
Dual-In-Line Package
Top View
TL F 5255– 1
Truth Table
ENABLE ENABLE
Input
Output
01
X Hi-Z
See
Note Below
VID t VTH (Max)
VID s VTH (Min)
1
0
HI-Z e TRI-STATE
Note Input conditions may be any combination not defined for ENABLE
and ENABLE
TL F 5255–2
Order Number DS26LS32CM DS26LS32CN
DS26LS32MJ DS26LS32ACM DS26LS32ACN
DS26LS33CN DS26LS33MJ or DS26LS33ACN
See NS Package Number J16A M16A or N16A
For Complete Military 883 Specifications
See RETS Data Sheet
Order Number DS26LS32MJ 883 DS26LS32MW 883
DS26LS33MJ 883 DS26LS33MW 883
See NS Package Number J16A or W16A
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL F 5255
RRD-B30M36 Printed in U S A
http www national com
http://www.Datasheet4U.com






DS26LS33AC Datasheet, Funktion
Physical Dimensions inches (millimeters) (Continued)
16 Lead Ceramic Flatpak (W)
Order Number DS26LS32MW 883 or DS26LS33MW 883
NS Package Number W16A
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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
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