HI-8591PSM

Overview

The HI-8591PSM is an ARINC 429 bus interface receiver manufactured by Holt Integrated Circuits. It operates from a single 3.3 V or 5 V supply and features high-impedance inputs to minimize bus loading, with input common-mode performance exceeding +/- 30 V for immunity to ground offsets. The device includes test inputs that bypass analog inputs to force digital outputs to a one, zero, or null state. It is housed in a small outline package suitable for compact designs.

Feature Summary

• ARINC 429 line receiver interface
• High-impedance inputs for minimal bus loading
• Test inputs for forced digital output states

Applications

• Avionics systems
• Aircraft data bus interfaces

Procurement Notes

Verify the specific suffix 'PSM' against official Holt documentation to confirm package type and temperature grade. Ensure compatibility with existing ARINC 429 bus requirements before procurement.

Selection Notes

Select this component for applications requiring robust ARINC 429 reception with high common-mode rejection. Consider the HI-8591-40 variant if external lightning protection resistors are needed for DO-160D compliance.

Part Context

Holt Integrated Circuits specializes in data bus communication ICs for military, aerospace, and industrial markets. The HI-8591 series supports embedded applications in flight control and engine management.

Replacement Considerations

Check for direct substitutes within the HI-8591 family, such as HI-8591CRIF or HI-8591CRMF, ensuring pinout and electrical specifications match.