Inicio Interfaz Transceptores RS-485 y RS-422

SN65HVD379

ACTIVO

Controladores y receptores equilibrados RS-485/RS-422 dúplex completo de 3.3 V

Detalles del producto

Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (nom) (V) 3.3 Signaling rate (max) (Mbps) 25 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 64 Isolated No Supply current (max) (µA) 2100 Rating Catalog Operating temperature range (°C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (nom) (V) 3.3 Signaling rate (max) (Mbps) 25 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 64 Isolated No Supply current (max) (µA) 2100 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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
  • 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

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 an external failsafe 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).

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 an external failsafe 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).

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Documentación técnica

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* Data sheet 3.3 V Full-Duplex RS 485/RS-422 Drivers and Balanced Receivers datasheet (Rev. B) 30 jun 2008

Diseño y desarrollo

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Modelo de simulación

SN65HVD379 IBIS Model

SLLC308.ZIP (10 KB) - IBIS Model
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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SOIC (D) 8 Ultra Librarian

Pedidos y calidad

Información incluida:
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  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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