DS36F95M National Semiconductor, DS36F95M Datasheet

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DS36F95M

Manufacturer Part Number
DS36F95M
Description
EIA-485/EIA-422A Differential Bus Transceiver
Manufacturer
National Semiconductor
Datasheet

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© 1998 National Semiconductor Corporation
DS16F95, DS36F95
EIA-485/EIA-422A Differential Bus Transceiver
General Description
The DS16F95/DS36F95 Differential Bus Transceiver is a
monolithic integrated circuit designed for bidirectional data
communication on balanced multipoint bus transmission
lines. The transceiver meets both EIA-485 and EIA-422A
standards.
The DS16F95/DS36F95 offers improved performance due to
the use of L-FAST bipolar technology. The L-FAST technol-
ogy allows for higher speeds and lower currents by minimiz-
ing gate delay times. Thus, the DS16F95 and DS36F95 con-
sume less power, and feature an extended temperature
range as well as improved specifications.
The DS16F95/DS36F95 combines a TRI-STATE
tial line driver and a differential input line receiver, both of
which operate from a single 5.0V power supply. The driver
and receiver have an active Enable that can be externally
connected to function as a direction control. The driver differ-
ential outputs and the receiver differential inputs are inter-
nally connected to form differential input/output (I/O) bus
ports that are designed to offer minimum loading to the bus
whenever the driver is disabled or when V
ports feature wide positive and negative common mode volt-
age ranges, making the device suitable for multipoint appli-
cations in noisy environments.
The driver is designed to accommodate loads of up to 60 mA
of sink or source current and features positive and negative
current limiting in addition to thermal shutdown for protection
from line fault conditions.
Logic Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
DS009629-20
DS009629
CC
= 0V. These
®
differen-
The DS16F95/DS36F95 can be used in transmission line
applications employing the DS96F172 and the DS96F174
quad differential line drivers and the DS96F173 and
DS96F175 quad differential line receivers.
Features
n Meets EIA-485 and EIA-422A
n Meets SCSI-1 (5 MHZ) specifications
n Designed for multipoint transmission
n Wide positive and negative input/output bus voltage
n Thermal shutdown protection
n Driver positive and negative current-limiting
n High impedance receiver input
n Receiver input hysteresis of 50 mV typical
n Operates from single 5.0V supply
n Reduced power consumption
n Pin compatible with DS3695 and SN75176A
n Military temperature range available
n Qualified for MIL-STD 883C
n Standard Military Drawings (SMD) available
n Available in DIP (J), SOIC (M), LCC (E), and Flatpak
Function Tables
Driver
Receiver
H = High Level
L = Low Level
X = Immaterial
Z = High Impedance (Off)
ranges
(W) packages
Driver Input
Differential Inputs
V
DI
V
H
X
L
ID
ID
A–B
X
−0.2V
0.2V
Enable
DE
H
H
L
Enable
RE
H
L
L
A
H
Z
L
Outputs
www.national.com
Output
June 1998
RO
H
L
Z
B
H
L
Z

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DS36F95M Summary of contents

Page 1

... Logic Diagram DS009629-20 TRI-STATE ® registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation DS009629 The DS16F95/DS36F95 can be used in transmission line applications employing the DS96F172 and the DS96F174 quad differential line drivers and the DS96F173 and DS96F175 quad differential line receivers ...

Page 2

COMMERCIAL Absolute Maximum Ratings Specifications for the 883 version of this product are listed separately on the following pages. Storage Temperature Range Lead Temperature (Soldering, 60 sec.) Maximum Package Power Dissipation (Note 1) at 25˚C ’J’ Package ’M’ Package Supply ...

Page 3

Driver Electrical Characteristics Over recommended supply voltage and operating temperature ranges, unless otherwise specified Symbol Parameter I Supply Current CC (Total Package) I CCX COMMERCIAL Driver Switching Characteristics V = 5.0V 25˚ Symbol Parameter t Differential ...

Page 4

... Note 8: Hysteresis is the difference between the positive-going input threshold voltage, V Note 9: Refer to TIA/EIA-485 Standard for exact conditions. Note 10: Only one output at a time should be shorted. Order Number: DS16F95J, NS Package Number J08A DS36F95J, NS Package Number J08A DS36F95M, NS Package Number M08A www.national.com (Continued) Conditions No Load 2V 0.8V ...

Page 5

MIL-STD 883C Absolute Maximum Ratings For complete Military Product Specifications, refer to the appropriate SMD or MDS. Storage Temperature Range Lead Temperature (Soldering, 60 sec.) Maximum Power Dissipation (Note 11) at 25˚C Ceramic ’E’ Package Ceramic ’J’ Package Ceramic ’W’ ...

Page 6

MIL-STD 883C Driver Switching Characteristics V = 5.0V CC Symbol Parameter t Differential Output Delay Time DD t Differential Output Transition TD Time t Propagation Delay Time, PLH Low-to-High Level Output t Propagation Delay Time, PHL High-to-Low Level Output t ...

Page 7

MIL-STD 883C Receiver Switching Characteristics V = 5.0V CC Symbol Parameter t Propagation Delay Time, PLH Low-to-High Level Output t Propagation Delay Time, PHL High-to-Low Level Output t Output Enable Time to High Level ZH t Output Enable Time to ...

Page 8

Parameter Measurement Information FIGURE 4. Driver Propagation Times (Notes 12, 13) FIGURE 5. Driver Enable and Disable Times (t FIGURE 6. Driver Enable and Disable Times (t FIGURE 7. Receiver Propagation Delay Times (Notes 12, 13) www.national.com (Continued) DS009629-6 DS009629-8 ...

Page 9

Parameter Measurement Information FIGURE 8. Receiver Enable and Disable Times (Notes 12, 13, 15) Note 12: The input pulse is supplied by a generator having the following characteristics: PRR = 1.0 MHz, 50% duty cycle, t Note 13: C includes ...

Page 10

... Connection Diagrams 8-Lead Dual-In-Line Package or Small Outline Molded Package Order Number DS16F95, DS16F95J/883, DS36F95J, DS36F95M See NS Package Number J08A, or M08A www.national.com 20-Lead Ceramic Leadless Chip Carrier DS009629-1 Order Number DS16F95E/883 See NS Package Number E20A 10-Lead Ceramic Flatpak DS009629-22 Order Number DS16F95W/883 ...

Page 11

11 ...

Page 12

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com 20-Lead Ceramic Leadless Chip Carrier (E) Order Number DS16F95E/883 NS Package Number E20A 12 ...

Page 13

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 8 Narrow Lead Ceramic Dual-In-Line Package (J) Order Number DS16F95J, DS16F95J/883 or DS36F95J 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC NS Package Number J08A Order Number DS36F95M NS Package Number M08A 13 www.national.com ...

Page 14

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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