Real-time Ethernet MIL-STD-1553 converter device

Holt Integrated Circuits, a world leader in data bus IC’s for the avionics and military industries, today announced that Alta Data Technologies (Alta) selected its integrated MIL-STD-1553 transceiver/transformer combination product, HI-2579, for use in the eNet2-1553 real-time Ethernet MIL-STD-1553 converter device.

The HI-2579 is the World’s smallest 3.3V MIL-STD-1553/1760 dual transceiver with integrated dual transformers. The IC is hermetically sealed on a ceramic LCC substrate and dual transformers are mounted in the same package. The ceramic substrate allows extended temperature operation from −55oC to +125oC and achieves Moisture Sensitivity Level (MSL) 1.

The device operates from a single 3.3V supply and provides a single-component solution to interface an FPGA directly with a dual redundant MIL-STD-1553 bus.

“Holt is very happy Alta once again chose us for their latest product design,” said Anthony Murray, Director of Business Development at Holt. “This product provides them with a robust, compact product ideal for this application.”

“We have worked well with Holt for many years and have many of their parts designed-in to a majority of our products. The HI-2579 combined transceiver and transformer was a perfect fit for our new ENET2-1553™ real-time Ethernet MIL-STD-1553 converter device,” said Jake Haddock, CTO of Alta. “The combination of the transceiver and transformer to a single component allowed us to offer significant additional features and capability for our customers.”

Alta’s ENET2-1553 device represents a significant advancement for 1553 based computers that are integrated with Ethernet networks. The ENET2 implements a real-time UDP server FPGA design that eliminates traditional IP/UDP software stacks. This capability allows the customer to control 1553 messages via an Ethernet LAN with very little added (

The HI-2579 transceiver is available in industrial −40oC to +85oC and extended −55oC to +125oC temperature ranges, with optional burn-in available for extended temperature range devices.