SP491EN-L

Drivers, Receivers, Transceivers Overview

The SP491EN-L is a low-power, full-duplex RS-485 transceiver manufactured by MaxLinear. It integrates one driver and one receiver in a single BiCMOS package. The device supports data rates up to 10 Mbps with a supply voltage range of 4.75 V to 5.25 V. It features a wide common-mode range for the receiver and high ESD protection capabilities. The component is available in a 14-pin SOIC surface-mount package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation supporting RS-485 and RS-422 communication standards
• High electrostatic discharge (ESD) protection on all pins
• Low power consumption suitable for battery-operated systems
• Wide operating temperature range availability

Drivers, Receivers, Transceivers Applications

• Industrial automation control systems
• Building automation and security networks
• Multi-drop communication buses
• Portable instrumentation devices

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix configuration against the manufacturer's current datasheet to ensure compatibility with required packaging and temperature grades. Confirm lead times and availability status directly with authorized distributors as inventory levels fluctuate. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required over long distances or noisy environments. Compare against half-duplex alternatives if bidirectional signaling on a single pair is sufficient. Verify that the 14-pin SOIC footprint fits the PCB layout constraints. Check thermal dissipation requirements based on the expected load and ambient temperature conditions.

Drivers, Receivers, Transceivers Part Context

This device belongs to the SP491 series of enhanced full-duplex RS-485 transceivers. It shares functional similarities with the SP490E but offers additional control features. The series is designed to replace legacy components in industrial communication applications requiring reliable data transmission.

Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-to-pin replacements within the same MaxLinear family. Verify electrical parameter equivalence for any cross-manufacturer substitutes. Ensure the replacement package type matches the existing board design.