Holt Integrated Circuits today announced the HI-85104, the world’s first quad ARINC 429 line driver, enabling aerospace designers to achieve higher channel density while reducing board area, component count, and design complexity. The HI-85104 integrates four fully independent ARINC 429 transmit channels into a compact 6 mm × 6 mm QFN package, replacing four discrete single-channel line drivers with a single device.

Holt’s founder, entrepreneur William G. Holt, has published a new memoir, “Engineering Your Career and Life: Lessons Learned While Building a Technology Business”.

Holt Integrated Circuits today announced it has tested its recently released HI-1592, a radiation-hardened 3.3V MIL-STD-1553 dual transceiver designed for high reliability and space applications, to higher Single-Event Effects (SEE) levels. The device is latch-up immune and was proven to withstand a single-event upset (SEU) with a Linear Energy Transfer (LET) of at least 86.3 MeV-cm2/mg and is radiation tolerant to a total ionizing dose (TID) of 100 krad(Si).

Holt announced its entry into the Space Market at Aero India 2025, unveiling its recently released radiation-hardened MIL-STD-1553 transceiver.