HI-4853PSIF

Overview

The HI-4853PSIF is a high-speed RS-485/RS-422 transceiver manufactured by Holt Integrated Circuits. It operates on a single power supply ranging from 3.0V to 5.5V, supporting both 3.3V and 5V logic levels. The device features one driver and one receiver, with the driver capable of driving loads up to 1/32 unit load. It supports data transmission rates up to 10 Mbps and includes thermal shutdown protection for the driver output stage. The component is housed in a 20-SOIC package with an exposed pad, designed for surface-mount installation.

Feature Summary

• Supports RS-485 and RS-422 communication protocols
• Operates within an extended power supply range of 3.0V to 5.5V
• Includes thermal shutdown protection for the driver output stage

Applications

• Process control and factory automation systems
• Industrial communication networks requiring differential signaling
• Embedded applications utilizing microprocessor-based interfaces

Procurement Notes

Verify the specific suffix 'PSIF' against the manufacturer's official datasheet to confirm pinout compatibility and RoHS compliance status. Ensure the ordering information matches the exact package type and temperature grade required for the target application environment before finalizing procurement.

Selection Notes

Select this component when a robust RS-485/422 interface is needed for industrial environments. It is suitable for designs requiring operation across a wide voltage range and high data rates. Consider the 20-SOIC package constraints and ensure adequate thermal management due to the exposed pad design for optimal performance.

Part Context

Holt Integrated Circuits specializes in data bus communication ICs for military, aerospace, and industrial markets. The HI-4853 series addresses the need for reliable differential signaling in harsh environments. This part fits within their portfolio of mixed-signal solutions for embedded applications, complementing other protocol-specific devices like ARINC 429 and MIL-STD-1553 transceivers.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Generic RS-485 transceivers may not match the specific operating voltage range or package dimensions. Verify that any alternative component maintains compatibility with the 1/32 unit load requirement and 10 Mbps data rate specifications.