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Manufacturer Part #


SP1485E Series 20Mpbs Enhanced Low Power Half-Duplex RS-485 Transceiver- NSOIC-8

Mfr. Name: MaxLinear
Standard Pkg:
Product Variant Information section
Date Code: 1351
Product Specification Section
Technical Attributes
Attributes Table
Package Style:  SOIC-8N
Mounting Method: Surface Mount
Features & Applications

EXAR, the market leader, offers the industry's broadest line-up ofUART and serial protocol transceivers solutions.

With over 200 devices, wide 2.25 to 5.5V power supply range, 1 to 128 bytes of FIFO and compliance with the universal 3.3/5V PCI, Intel and Motorola bus interfaces, including single protocol ICs that support RS-232, RS-422 or RS-485 as well as dual and multi-protocol ICs that support from 2 to 8 of the most popular interface standards with a single IC, Exar has already done the difficult work for you.

We can deliver an immediate competitive advantage to your compressed time-to-market demands accelerating initial design, to functioning prototype and finally volume production.

The SP1481E and the SP1485E are a family of half-duplex transceivers that meet the specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance.

The ESD tolerance has been improved on these devices to over +15KV for both Human Body Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with Exar's SP481 and SP485 devices as well as popular industry standards.

As with the original versions, the SP1481E and the SP1485E feature Exar's BiCMOS design allowing low power operation without sacrificing performance.

The SP1481E and SP1485E meet the requirements of the RS-485 and RS-422 protocols up to 20Mbps under load. The SP1481E is equipped with a low power Shutdown mode.


  • +5V Only
  • Low Power BiCMOS
  • Driver/Receiver Enable for Multi-Drop configurations
  • Enhanced ESD Specifications:
    • ± 15KV Human Body Model
    • ± 15KV IEC1000-4-2 Air Discharge
    • ± 8KV IEC1000-4-2 Contact Discharge
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Product Variant Information section