text.skipToContent text.skipToNavigation


High Output Full-Duplex RS 485 Drivers and Receivers


Package | PIN: D | 8
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $3.08
10-24 $2.77
25-99 $2.58
100-249 $2.26
250-499 $2.12
500-749 $1.80
750-999 $1.52
1000+ $1.45


  • 1/8 Unit-Load Option Available (Up to 256 Nodes on the Bus)
  • Bus-Pin ESD Protection Exceeds 15 kV HBM
  • Optional Driver Output Transition Times for Signaling Rates(1) of 1 Mbps, 5 Mbps and 25 Mbps
  • Low-Current Standby Mode < 1 µA
  • Glitch-Free Power-Up and Power-Down Bus I/Os
  • Bus Idle, Open, and Short Circuit Failsafe
  • Designed for RS-422 and RS485 Networks
  • 3.3-V Devices Available, SN65HVD30-35
    • Utility Meters
    • Chassis-to-Chassis Interconnects
    • DTE/DCE Interfaces
    • Industrial, Process, and Building Automation
    • Point-of-Sale (POS) Terminals and Networks

(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).

Texas Instruments  SN65HVD50DR

The SN65HVD5X devices are 3-state differential line drivers and differential-input line receivers that operate with a 5-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.

The SN65HVD50, SN65HVD51, and SN65HVD52 are fully enabled with no external enabling pins.

The SN65HVD53, SN65HVD54, and SN65HVD55 have active-high driver enables and active-low receiver enables. A low, less than 1 µA, standby current is achieved by disabling both the driver and receiver.

All devices are characterized for operation from –40°C to 85°C.

The high output feature of the SN65HVD5x provides more noise margin than the typical RS-485 drivers. The extra noise margin makes applications in long cable and harsh noise environments possible.