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1/1 Transceiver Full RS485 8-VSSOP

THVD1551DGKR General Description

To cater to space-constrained applications, the THVD1551DGKR is available in small VSSOP packages, providing flexibility in design and installation. These devices are characterized for performance over a wide temperature range, from –40°C to 125°C, ensuring consistent operation even in extreme environmental conditions

Key Features

  • Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
  • 4.5 V to 5.5 V Supply Voltage
  • Integrated Bus I/O Protection
    • ± 30 kV HBM ESD
    • ± 18 kV IEC 61000-4-2 ESD Contact Discharge
    • ± 25 kV IEC 61000-4-2 ESD Air-Gap Discharge
    • ± 4 kV IEC 61000-4-4 Electrical Fast Transient
  • Extended Operational Common-mode: ± 15 V
  • Low EMI 500 kbps and 50 Mbps Data Rates
  • Extended Temperature Range: -40°C to 125°C
  • Large Receiver Hysteresis for Noise Rejection
  • Low Power Consumption
    • Low Standby Supply Current: < 1 µA
    • Current During Operation: < 1 mA
  • Glitch-Free Power-Up/Down for Hot Plug-in Capability
  • Open, Short, and Idle Bus Failsafe
  • 1/8 Unit Load Options (Up to 256 Bus Nodes)
  • Small-Size VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility


Number of receivers 1 Number of transmitters 1
Duplex Full Supply voltage (nom) (V) 5
Signaling rate (max) (MBits) 50 IEC 61000-4-2 contact (±V) 16000
Fault protection (V) -18 to 18 Common-mode range (V) -15 to 15
Number of nodes 196 Features Extended common mode, IEC ESD protection
Isolated No Supply current (max) (µA) 1000
Rating Catalog Operating temperature range (°C) -40 to 125
Product Category RS-485 Interface IC Mounting Style SMD/SMT
Series THVD1551 Function Transceiver
Data Rate 50 Mb/s Number of Drivers 1 Driver
Number of Receivers 1 Receiver Supply Voltage - Max 5.5 V
Supply Voltage - Min 4.5 V Operating Supply Current 700 uA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 125 C
ESD Protection 18 kV Product Type RS-485 Interface IC
Factory Pack Quantity 2500 Subcategory Interface ICs
Unit Weight 0.001030 oz

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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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