DS96176CN/NOPB National Semiconductor, DS96176CN/NOPB Datasheet

IC TRANSCEIVER DIFF BUS 8-DIP

DS96176CN/NOPB

Manufacturer Part Number
DS96176CN/NOPB
Description
IC TRANSCEIVER DIFF BUS 8-DIP
Manufacturer
National Semiconductor
Type
Transceiverr
Datasheet

Specifications of DS96176CN/NOPB

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DS96176CN
*DS96176CN/NOPB
96176
DS96176
DS96176CN

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Part Number:
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© 1998 National Semiconductor Corporation
DS96176
RS-485/RS-422 Differential Bus Transceiver
General Description
The DS96176 Differential Bus Transceiver is a monolithic in-
tegrated circuit designed for bidirectional data communica-
tion on balanced multipoint bus transmission lines. The
transceiver meets EIA Standard RS-485 as well as
RS-422A.
The DS96176 combines a TRI-STATE
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 differential outputs
and the receiver differential inputs are internally connected
to form differential input/output (I/O) bus ports that are de-
signed to offer minimum loading to the bus whenever the
driver is disabled or when V
wide positive and negative common mode voltage ranges,
making the device suitable for multipoint applications in
noisy environments.
The driver is designed to handle loads up to 60 mA of sink or
source current. The driver features positive and negative
current-limiting and thermal shutdown for protection from line
fault conditions. Thermal shutdown is designed to occur at
junction temperature of approximately 160˚C. The receiver
features a typical input impedance of 15 k , an input sensi-
tivity of
Connection Diagram
Function Table
Driver
TRI-STATE
Input
DI
H
L
X
±
®
is a registered trademark of National Semiconductor Corporation.
200 mV, and a typical input hysteresis of 50 mV.
See NS Package Number N08E
Order Number DS96176CN
Enable
8–Lead DIP
DE
H
H
Top View
L
CC
= 0V. These ports feature
®
differential line driver
A
H
L
Z
DS009630
Outputs
DS009630-1
B
H
Z
L
The DS96176 can be used in transmission line applications
employing the DS96172 and the DS96174 quad differential
line drivers and the DS96173 and DS96175 quad differential
line receivers.
Features
n Bidirectional transceiver
n Meets EIA Standard RS-422A and RS-485
n Designed for multipoint transmission
n TRI-STATE driver and receiver enables
n Individual driver and receiver enables
n Wide positive and negative input/output bus voltage
n Driver output capability
n Thermal shutdown protection
n Driver positive and Negative current-limiting
n High impedance receiver input
n Receiver input sensitivity of
n Receiver input hysteresis of 50 mV typical
n Operates from single 5.0V supply
n Low power requirements
Receiver
H = High Level
L = Low Level
X = Immaterial
Z = High Impedance (off)
ranges
Differential Inputs
V
V
ID
ID
A-B
X
−0.2V
0.2V
±
60 mA Maximum
±
200 mV
Enable
RE
H
L
L
www.national.com
Output
May 1998
R
H
L
Z

Related parts for DS96176CN/NOPB

DS96176CN/NOPB Summary of contents

Page 1

... TRI-STATE ® registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation DS009630 The DS96176 can be used in transmission line applications employing the DS96172 and the DS96174 quad differential line drivers and the DS96173 and DS96175 quad differential line receivers. Features n Bidirectional transceiver ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Molded DIP Lead Temperature Molded DIP (soldering, 10 sec.) Maximum Power Dissipation (Note 1) at 25˚C Molded Package Supply Voltage ...

Page 3

Electrical Characteristics Over recommended temperature, common mode input voltage, and supply voltage ranges, unless otherwise specified Symbol Parameter RECEIVER SECTION V Output Voltage HIGH OH V Output Voltage LOW OL I High Impedance State Output OZ I Line Input Current ...

Page 4

Receiver Switching Characteristics Note 9: Refer to EIA Standard RS-485 for exact conditions. Note 10: Only one output at a time should be shorted. Parameter Measurement Information FIGURE 1. Driver V and V OD FIGURE 4. Driver Differential Output Delay ...

Page 5

Parameter Measurement Information FIGURE 6. Driver Enable and Disable Times (t FIGURE 7. Driver Enable and Disable Times (t FIGURE 8. Receiver Propagation Delay Times (Continued) DS009630 PZH PHZ DS009630- PZL PLZ DS009630-13 5 DS009630-10 ) ...

Page 6

Parameter Measurement Information Note 11: The input pulse is supplied by a generator having the following characteristics: PRR = 1.0 MHz, 50% duty cycle, t Note 12: C includes probe and stray capacitance. L Note 13: DS96176 Driver enable is ...

Page 7

Typical Performance Characteristics Driver Differential Propagation Delay Temperature CC DS009630-22 Driver Differential Rise Time Temperature CC DS009630-24 Driver Skew Temperature CC (|t –t |) PLDH PHLD Driver Differential Propagation Delay vs ...

Page 8

Typical Performance Characteristics FIGURE 11. Typical Curve Driver Propagation Delay Test Circuit FIGURE 12. Typical Curve Driver Differential Propagation Delay Timing www.national.com (Continued) DS009630-27 8 DS009630-28 ...

Page 9

Typical Performance Curves FIGURE 13. Typical Curve Driver Differential Rise and Fall Times Receiver Propagation Delay Temperature DS009630-30 Receiver Skew Temperature CC (|t –t |) PLH PHL FIGURE 14. Typical Curve Receiver Differential ...

Page 10

Typical Performance Curves FIGURE 15. Typical Curve Receiver Propagation Delay Timing www.national.com (Continued) 10 DS009630-34 ...

Page 11

11 ...

Page 12

... 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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