Evaluation Board for SP339 Series RS-232/RS-485/RS-422 Transceiver

Mfr Part#: SP339EER1-0A-EB
Packaging:  BULK
Std Packaging Qty:  1



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$42.86 USD (each)
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Product Highlight

  • Type: Serial/UART (TTL,RS-232/422/485)
  • Core Supported: SP339

The SP339EER1-0A-EB is a part of SP339 series of development tool. It is a evaluation board for RS-232/RS-485/RS-422 Transceiver.

The SP339 is an advanced multiprotocol transceiver supporting RS-232, RS-485, and RS-422 serial standards in a 40 pin QFN package. Integrated cable termination and four configuration modes allow all three protocols to be used interchangeably over a single cable or connector with no additional switching components. Full operation requires only four external charge pump capacitors.


  • Pin selectable Cable Termination
  • No external resistors required for RS-485/422 termination and biasing
  • 3.3 V or 5 V Single Supply Operation
  • Robust ESD Protection on bus pins
    • ±15kV Human Body Model (HBM)
    • ±8kV IEC 61000-4-2 (Contact)
  • Max Data Rate of 20Mbps in RS-485/422 Modes and up to 1Mbps in RS-232 Modes
  • Pin selectable 250kbps Slew Limiting
  • 3 Drivers, 5 Receivers RS-232/V.28
  • 1 Driver, 1 Receiver RS-485/422
    • Full and Half Duplex Configuration
    • 1/8th Unit Load, up to 256 receivers on bus
  • RS-485/422 Enhanced Failsafe for open, shorted, or terminated but idle inputs


  • Dual Protocol Serial Ports
  • Industrial Computers
  • Industrial and Process Control Equipment
  • Point-Of-Sale Equipment
  • Networking Equipment
  • HVAC Controls Equipment
  • Building Security and Automation Equipment

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