MaxLinear SP483EEN-L/TR

The SP483E is a half-duplex transceiver that meets 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 IEC61000-4-2 Air Discharge Method. This device is pin-to-pin compatible with MaxLinear’s SP483 device as well as popular industry standards. As with the original versions, the SP483E features MaxLinear’s BiCMOS design allowing low power operation without sacrificing performance. The SP483E is internally slew rate limited to reduce EMI and can meet the requirements of RS-485 and RS-422 up to 250kbps. The SP483E is also equipped with a low power shutdown mode.

The SP483E is a half-duplex differential transceiver that meets the requirements of RS-485 and RS-422. Fabricated with a MaxLinear proprietary BiCMOS process, this product requires a fraction of the power of older bipolar designs.

The RS-485 standard is ideal for multi-drop applications and for long-distance interfaces. RS-485 allows up to 32 drivers and 32 receivers to be connected to a data bus, making it an ideal choice for multi-drop applications. Since the cabling can be as long as 4,000 feet, RS-485 transceivers are equipped with a wide (-7V to 12V) common mode range to accommodate ground potential differences. Because RS-485 is a differential interface, data is virtually immune to noise in the transmission line.

• 5V only
• Low power BiCMOS
• Driver / receiver enable for multi-drop configurations
• Enhanced ESD specifications:
  • ±15KV Human Body Model
  • ±15KV IEC61000-4-2 Air Discharge
  • ±8KV IEC61000-4-2 Contact Discharge
• Low EMI transceiver limited to 250kbps
• Low power 1μA shutdown mode