SP483EN/TR

Drivers, Receivers, Transceivers Overview

The SP483EN/TR is a low-power half-duplex RS-485 transceiver manufactured by Sipex. It integrates one driver and one receiver within a single BICMOS function, supporting the EIA-422 and EIA-485 interface standards. The device operates on a single 5 V supply voltage with a maximum operating temperature of 85 °C and a minimum of -40 °C. It utilizes an SOIC-8 surface-mount package compliant with MS-001BA specifications. The component features differential Schmitt trigger inputs for noise immunity and provides three-state outputs to facilitate bus multipoint communication in industrial environments.

Drivers, Receivers, Transceivers Feature Summary

• Low power consumption design suitable for battery-operated systems
• Differential Schmitt trigger input characteristics for enhanced noise rejection
• Three-state outputs enabling multi-drop bus configurations
• Compliance with EIA-422 and EIA-485 electrical standards

Drivers, Receivers, Transceivers Applications

• Industrial automation control networks
• Building automation and security systems
• Multi-point data transmission links

Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer origin as Sipex or its successor entities like Exar/MaxLinear due to corporate acquisitions. Confirm the specific suffix TR indicates tape-and-reel packaging if required for automated assembly. Ensure RoHS compliance status matches current regulatory requirements for the intended market. Cross-reference datasheet revisions to confirm pinout consistency with legacy designs.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a half-duplex RS-485 interface is required with low quiescent current. The SOIC-8 package is appropriate for space-constrained printed circuit board layouts. Verify that the 250 kbps data rate meets the system's throughput requirements. Ensure the operating temperature range covers the environmental conditions of the final application.

Drivers, Receivers, Transceivers Part Context

The SP483 series belongs to the family of low-power RS-485 transceivers designed for robust serial communication. This specific model represents the enhanced version with improved noise immunity compared to earlier iterations. It serves as a standard interface solution for connecting microcontrollers to long-distance balanced transmission lines in noisy industrial settings.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include SP483CN-L from MaxLinear. Other compatible alternatives may exist within the same functional family, but direct cross-referencing requires checking specific electrical parameter tolerances.