DS96F172 NSC [National Semiconductor], DS96F172 Datasheet

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DS96F172

Manufacturer Part Number
DS96F172
Description
Quad Differential Drivers
Manufacturer
NSC [National Semiconductor]
Datasheet

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© 1998 National Semiconductor Corporation
DS96F172C/DS96F172M/DS96F174C/DS96F174M
EIA-485/EIA-422 Quad Differential Drivers
General Description
The DS96F172 and the DS96F174 are high speed quad dif-
ferential line drivers designed to meet EIA-485 Standards.
The DS96F172 and the DS96F174 offer improved perfor-
mance due to the use of L-FAST bipolar technology. The use
of LFAST technology allows the DS96F172 and DS96F174
to operate at higher speeds while minimizing power con-
sumption.
The DS96F172 and the DS96F174 have TRI-STATE
puts and are optimized for balanced multipoint data bus
transmission at rates up to 15 Mbps. The drivers have wide
positive and negative common mode range for multipoint ap-
plications in noisy environments. Positive and negative
current-limiting is provided which protects the drivers from
line fault conditions over a +12V to −7.0V common mode
range. A thermal shutdown feature is also provided. The
DS96F172 features an active high and active low Enable,
common to all four drivers. The DS96F174 features separate
active high Enables for each driver pair.
Logic Diagrams
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
DS96F172
DS96F174
DS009625
DS009625-14
DS009625-15
®
out-
Features
n Meets EIA-485 and EIA-422 standards
n Monotonic differential output switching
n TRI-STATE outputs
n Designed for multipoint bus transmission
n Common mode output voltage range: −7.0V to +12V
n Operates from single +5.0V supply
n Reduced power consumption
n Thermal shutdown protection
n DS96F172 and DS96F174 are lead and function
n Military temperature range available
n Qualified for MIL-STD-883C
n Standard military drawings available (SMD)
n Available in DIP (J), LCC (E), and Flatpak (W) packages
Function Tables
DS96F172
DS96F174
H = High Level
L = Low Level
X = Don’t Care
Z = High Impedance (Off)
compatible with the SN75172/174 or the
AM26LS31/MC3487
Input
Input
A
H
H
L
L
X
A
H
X
L
E
H
H
X
X
L
Enable
Enable
H
H
E
L
H
E
X
X
L
L
(Each Driver)
H
Y
L
Z
Y
H
H
Z
L
L
Outputs
Outputs
www.national.com
June 1998
H
H
H
Z
L
Z
Z
L
L
Z

Related parts for DS96F172

DS96F172 Summary of contents

Page 1

... DS96F172C/DS96F172M/DS96F174C/DS96F174M EIA-485/EIA-422 Quad Differential Drivers General Description The DS96F172 and the DS96F174 are high speed quad dif- ferential line drivers designed to meet EIA-485 Standards. The DS96F172 and the DS96F174 offer improved perfor- mance due to the use of L-FAST bipolar technology. The use ...

Page 2

... I Supply Current (All Drivers CCX www.national.com Recommended Operating (Note 2) Conditions −65˚C to +175˚C Supply Voltage (V CC 300˚C DS96F172C/DS96F174C 4.75 Common Mode 1500 mW Output Voltage (V 7.0V Output Current HIGH (I 5.5V Output Current LOW (I Operating Temperature ( DS96F172C/DS96F174C Note 1: Derate “J” package 10 mW/˚C above 25˚C. ...

Page 3

... Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation. Note 3: Unless otherwise specified min/max limits apply across the 0˚C to +70˚C range for the DS96F172C/DS96F174C. All typicals are given for V = 25˚C. ...

Page 4

... DS96F172M/DS96F174M Common Mode 2000 mW Output Voltage (V 1800 mW Output Current HIGH (I 1000 mW Output Current LOW (I 7.0V Operating Temperature (T 5.5V DS96F172M/DS96F174M Note 9: Above T = 25˚C, derate “E” package 13.4, “J” package 12.5, “W” A package 7.1 mW/˚C (Notes 3, 4) Conditions T = 25˚ −55˚C, or +125˚C ...

Page 5

... LZ t Output Disable Time from Low Level LZL with Load Resistor to GND (Note 12) t Driver Output to Output SKEW SMD Numbers: DS96F172MJ/883 5962-9076501MEA DS96F174MJ/883 5962-9076502MEA DS96F172ME/883 5962-9076501M2A DS96F174MW/883 5962-9076502MFA DS96F174ME/883 5962-9076502M2A Order Number: DS96F172MJ/883, DS96F174MJ/883 NS Package Number J16A DS96F172ME/883, DS96F174ME/883 NS Package Number E20A ...

Page 6

... Note 12: DS96F172 with active high and active low Enables is shown. DS96F174 has active high Enable only. Note 13: To test the active low Enable E of DS96F172 ground E and apply an inverted waveform DS96F174 has active high Enable only. Note 14: For more information see Application Bulletin, Contact Product Marketing. ...

Page 7

... Typical Application The line length should be terminated at both ends in its characteristic impedance. Stub lengths off the main line should be kept as short as possible. Connection Diagrams 16-Lead Ceramic Dual-In-Line Package DS96F172 DS009625-1 Top View 20-Lead Ceramic Leadless Chip Carrier connection Top View ...

Page 8

Connection Diagrams (Continued) Top View Order Numbers are located at the end of the respective Electrical Tables. www.national.com 16-Lead Ceramic Flatpak NS Package Number W16A DS009625-1 8 DS009625-2 Top View ...

Page 9

9 ...

Page 10

... Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS96F172ME/883, DS96F174ME/883 www.national.com 20-Lead Ceramic Leadless Chip Carrier (E) NS Package Number E20A 16-Lead Ceramic Dual-In-Line Package (J) Order Number DS96F172MJ/883, DS96F174CJ, DS96F174MJ/883 NS Package Number J16A 10 ...

Page 11

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number DS96F172MW/883, DS96F174MW/883 Order Number DS96F172CN, or DS96F174CN 16-Lead Ceramic Flatpack (W) NS Package Number W16A Molded Dual-In-Line Package (N) NS Package Number N16E 11 www.national.com ...

Page 12

LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices ...

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