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SN65HVD379

Texas Instruments
Part Number SN65HVD379
Manufacturer Texas Instruments
Description 3.3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS
Published Oct 1, 2019
Detailed Description SN65HVD379 www.ti.com .....
Datasheet PDF File SN65HVD379 PDF File

SN65HVD379
SN65HVD379

Overview
SN65HVD379 www.
ti.
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SLLS667B – FEBRUARY 2006 – REVISED JUNE 2008 3.
3 V FULL-DUPLEX RS-485/RS-422 DRIVERS AND BALANCED RECEIVERS FEATURES 1 • Designed for INTERBUS Applications • Designed for RS-422 and RS-485 Networks • Balanced Receiver Thresholds • 1/2 Unit-Load (up to 64 nodes on the bus) • Bus-Pin ESD Protection 15 kV HBM • Bus-Fault Protection of –7 V to 12 V • Thermal Shutdown Protection • Power-Up/Down Glitch-free Bus Inputs and Outputs • High Input Impedance With Low VCC • Monotonic Outputs During Power Cycling • 5-V Tolerant Inputs APPLICATIONS • Digital Motor Control • Utility Meters • Chassis-to-Chassis Interconnections • Electronic Security Stations • Industrial, Process, and Building Automation • Point-of-Sale (POS) Terminals and Networks • DTE/DCE Interfaces DESCRIPTION The SN65HVD379 is a differential line driver and differential-input line receiver that operates with a 3.
3-V power supply.
Each driver and receiver has separate input and output pins for full-duplex bus communication designs.
They are designed for balanced transmission lines and interoperation with ANSI TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.
11, and ISO 8482:1993 standard-compliant devices.
These differential bus drivers and receivers are monolithic, integrated circuits designed for full-duplex bi-directional data communication on multipoint bus-transmission lines at signaling rates(1) up to 25 Mbps.
The SN65HVD379 is fully enabled with no external enabling pins.
The 1/2 unit load receiver has a higher receiver input resistance.
This results in lower bus leakage currents over the common-mode voltage range, and reduces the total amount of current that an RS-485 driver is forced to source or sink when transmitting.
The balanced differential receiver input threshold makes the SN65HVD379 more compatible with fieldbus requirements that define...


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