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SN65HVD08DR

3.3V RS-485 Transceiver, 20Mbps, 1/8 UL, 16kV ESD, SOIC-8

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Pieza del fabricante：

SN65HVD08DR

Paquete：

SOIC-8 (5.0 x 4.0 x 1.5 mm)

Marca：
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Descripción

Productos

The SN65HVD08DR from Texas Instruments is a 3.3 V RS-485 half-duplex transceiver supporting up to 20 Mbps data rates with 1/8 unit load and 16 kV ESD protection in an SOIC-8 package.

Especificaciones

Tipo RS-485 Half-Duplex Transceiver
Velocidad de datos Up to 20 Mbps
Tensión de alimentación 3.3 V
ESD Protection 16 kV HBM on bus pins
Receiver Input Impedance 1/8 Unit Load (96 kOhm min)
Common-Mode Range -7 V to +12 V
Corriente de reposo 2 mA (typical)
Paquete SOIC-8 (5.0 x 4.0 mm)
Temperatura de funcionamiento -40C to 85C

Características

  • 20 Mbps high-speed data rate
  • 1/8 unit load supports up to 256 nodes
  • 16 kV ESD protection on bus pins
  • 3.3 V single supply
  • Hot-plug capable
  • Pin-compatible with industry-standard 75176

Aplicaciones

  • High-speed industrial communication networks
  • Profibus and high-speed Modbus systems
  • Motion control and servo drive links
  • Video and data transmission over balanced lines
  • Multi-drop sensor networks

The SN65HVD08DR from Texas Instruments is a 3.3 V RS-485 half-duplex transceiver supporting data rates up to 20 Mbps for high-speed industrial communication. The 1/8 unit load receiver input impedance allows up to 256 transceivers on a single bus. 16 kV HBM ESD protection on the bus pins provides robust handling immunity. The device is hot-plug capable, ensuring bus stability when devices are connected or disconnected under power. Pin compatibility with the industry-standard 75176 transceiver simplifies design migration. The 3.3 V single supply operation matches modern low-voltage MCU logic levels without level translation.

The SN65HVD08DR integrates a differential line driver and a differential line receiver. The driver converts single-ended TTL/CMOS logic on the DI pin to a differential output on the A and B bus pins when DE is high. The receiver converts the differential signal on the A and B pins to a single-ended output on the RO pin when RE is low. In half-duplex mode, DE and RE are tied together for alternating transmit and receive operation. The high 20 Mbps data rate is achieved through optimized driver output transition times and receiver bandwidth. The 1/8 unit load input impedance (96 kOhm minimum) presents minimal loading to the bus, enabling large multi-drop networks. Hot-plug circuitry ensures that the driver and receiver outputs remain in high-impedance during power-up transients, preventing bus disruption.

Pin Nombre Tipo Función
1 RO Salida Receiver output
2 RE Entrada Receiver enable (active low)
3 DE Entrada Driver enable (active high)
4 DI Entrada Driver data input
5 GND Suelo Suelo
6 A E/S Non-inverting bus pin
7 B E/S Inverting bus pin
8 VCC Potencia 3.3V power supply
  • Profibus DP high-speed fieldbus at 12 Mbps
  • High-speed Modbus TCP-to-serial gateway communication
  • Servo drive and motion controller feedback links
  • Multi-drop sensor network with 200+ nodes
  • Video surveillance RS-485 control and telemetry
Fabricante Número de pieza Paquete Notas
Texas Instruments THVD2450DR SOIC-8 50Mbps, 18kV ESD, same family
Dispositivos analógicos MAX3485ESA+ SOIC-8 10Mbps, 3.3V RS-485
STMicroelectronics ST3485EBDR SOIC-8 18Mbps, 3.3V RS-485
Renesas ISL3179EIBZ SOIC-8 30Mbps, 3.3V RS-485
onsemi AM26LV31CDR SOIC-16 Quad RS-422 driver, 3.3V
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