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SN65HVD379 Datasheet(PDF) 1 Page - Texas Instruments

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Part # SN65HVD379
Description  3.3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN65HVD379 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
VID
RecevierOutputHigh
ReceiverOutputLow
R
D
B
A
Z
Y
7
8
6
5
2
3
DP
(TOP VIEW)
ACKAGE
1
2
3
4
8
7
6
5
R
D
VCC
B
A
Z
Y
GND
SN65HVD379
SLLS667A – FEBRUARY 2006 – REVISED MAY 2006
3.3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS
Designed for INTERBUS Applications
The SN65HVD379 is a differential line driver and
differential-input line receiver that operates with a
Balanced Receiver Thresholds
3.3-V power supply. Each driver and receiver has
1/2 Unit-Load (up to 64 nodes on the bus)
separate input and output pins for full-duplex bus
Bus-Pin ESD Protection 15 kV HBM
communication designs. They are designed for
Bus-Fault Protection of –7V to 12V
balanced transmission lines and interoperation with
ANSI TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.11, and
Thermal Shutdown Protection
ISO 8482:1993 standard-compliant devices.
Power-Up/Down Glitch-free Bus Inputs and
These differential bus drivers and receivers are
Outputs
monolithic, integrated circuits designed for full-duplex
High Input Impedance with Low VCC
bi-directional
data
communication
on
multipoint
Monotonic Outputs During Power Cycling
bus-transmission lines at signaling rates(1) up to 25
Mbps. The SN65HVD379 is fully enabled with no
5V Tolerant Inputs
external enabling pins.
The 1/2 unit load receiver has a higher receiver input
Digital Motor Control
resistance. This results in lower bus leakage currents
over the common-mode voltage range, and reduces
Utility Meters
the total amount of current that an RS-485 driver is
Chassis-to-Chassis Interconnections
forced to source or sink when transmitting.
Electronic Security Stations
The balanced differential receiver input threshold
Industrial, Process, and Building Automation
makes the SN65HVD379 more compatible with
Point-of-Sale (POS) Terminals and Networks
fieldbus requirements that define an external failsafe
DTE/DCE Interfaces
structure.
(1)
The signaling rate of a line is the number of voltage
transitions that are made per second expressed in the units
bps (bits per second).
BALANCED RECEIVER INPUT THRESHOLDS
SN65HVD379
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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