HI-1567CDM

The HI-1567CDM from Holt Integrated Circuits is a dual-channel CMOS transceiver designed to meet the electrical and protocol requirements of the MIL-STD-1553 and MIL-STD-1760 serial data buses. This monolithic device integrates two independent transceiver channels, each capable of interfacing a digital controller directly to the data bus through standard isolation transformers. Key characteristics include low standby power dissipation, single 5 V logic supply operation with internally generated bus driver voltages, and built-in loopback test functionality that supports both self-test and system-level diagnostics without external switching.

Typical applications span avionics systems, flight control computers, stores management, engine control units, and mission-critical platforms in military aerospace and defense environments, where dual-redundant 1553 buses ensure fault-tolerant communication. The CDIP package signifies a ceramic dual-in-line configuration suitable for high-reliability and extended-temperature environments, often ordered with full MIL-PRF-38535 Class B or S processing. Procurement engineers should consider lead-time variability and potential obsolescence risks common to specialized military-grade components, while verifying that the suffix and screening level align with program requirements. Holt’s long-lifecycle product family and heritage in ruggedized integrated circuits help mitigate sustainment challenges in long-term defense programs.