SP3490

Features: Full Duplex RS-485 and RS-422 Transceivers Operates from a single +3.3V supply Interoperable with +5.0V logic Driver/Receiver Tri-state Enable Lines (SP3491) -7V to +12V Common-Mode Input Voltage Range +200mV Receiver Input Sensitivity Allows up to 32 transceivers on the serial bus Comp...

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SeekIC No. : 004500381 Detail

SP3490: Features: Full Duplex RS-485 and RS-422 Transceivers Operates from a single +3.3V supply Interoperable with +5.0V logic Driver/Receiver Tri-state Enable Lines (SP3491) -7V to +12V Common-Mode Input...

floor Price/Ceiling Price

Part Number:
SP3490
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/24

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Product Details

Description



Features:

Full Duplex RS-485 and RS-422 Transceivers
Operates from a single +3.3V supply
Interoperable with +5.0V logic
Driver/Receiver Tri-state Enable Lines (SP3491)
-7V to +12V Common-Mode Input Voltage Range
+200mV Receiver Input Sensitivity
Allows up to 32 transceivers on the serial bus
Compatibility with LTC490 and SN75179 (SP3490)
Compatibility with LTC491 and SN75180 (SP3491)





Pinout

  Connection Diagram




Specifications

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
VCC ............................................................................................. +6.0V
Input Voltages
Drivers ............................................................... -0.3V to +6.0V
Receivers ......................................................................... ±14V
Output Voltages
Drivers .............................................................................. ±14V
Receivers .......................................................... -0.3V to +6.0V
Storage Temperature ................................................... -65°C to +150°
Power Dissipation per Package
8-pin NSOIC (derate 6.90mW/ above +70) ..................... 600mW
8-pin PDIP (derate 11.8mW/ above +70) ...................... 1000mW
14-pin NSOIC (derate 8.33mW/ above +70) ................... 700mW
14-pin PDIP (derate 14.3mW/ above +70) .................... 1200mW



Specifications
Vcc (V) 3.3
No. of Tx 1
No. of Rx 1
Duplex Full
Data Rate (kbps) 10000
ESD (KV) 2
Rx Fail-Safe Open Yes
Rx Fail-Safe Short No
Shutdown
Multi-Drop Nodes 32





Description

The SP3490 and the SP3491 are +3.3V low power full duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with the Sipex SP490 and SP491 devices as well as popular industry standards.

The SP3490 and the SP3491feature Sipex's BiCMOS process, allowing low power operation without sacrificing performance. They meet the electrical specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3491 is identical to it with the addition of driver and receiver tri-state enable lines.






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