Military Embedded Systems

New 3.3V MIL-STD-1553 Dual Transceiver with Integrated Transformers from Holt Integrated Circuit

Press Release

July 16, 2020

New 3.3V MIL-STD-1553 Dual Transceiver  with Integrated Transformers from Holt Integrated Circuit

Mission Viejo, CA – Holt Integrated Circuits today announced the introduction of HI-25850, a new 3.3V MIL-STD-1553 dual transceiver with integrated transformers. The device combines Holt’s recently announced HI-15850 MIL-STD-1553 transceiver IC with the required isolation transformers in a single package. The HI-15850 is identical to Holt’s HI-1585, with the added feature of 1.8V, 2.5V and 3.3V compatible digital I/O.

At less than 15mm x 15mm in area and 4.4mm high when mounted, this new device, HI-25850, has the lowest height and footprint available on the market today and is an ideal choice for applications using cards with component height restrictions, such as PMC and XMC.   The digital I/O feature also gives users flexibility to interface with a broader range of FPGAs, avoiding the use of level shifters and other additional circuitry.

This new device provides the same unique features of bus tail-off compensation and receiver output pulse extension as HI-15850 or HI-1585. Tail-off compensation provides a means to actively compensate for bus tail-off, which is an undesirable temporary DC offset on the terminal’s bus stub resulting from non-optimal board design and layout. The optional receiver output pulse extension feature ensures receiver output pulse widths remain above 180ns, improving receiver sensitivity for designs operating close to the minimum receiver input response amplitude and ensuring proper decoding.

“Combining dual transceivers and transformers in a single package provides significant space and cost reduction, making this new device the perfect choice for PMC or XMC cards” said Anthony Murray, Director of Marketing Communications at Holt. “In addition, the optional low-logic digital I/O interface enables a broader choice of FPGA selection.”

The devices are available in industrial (−40oC to +85oC) and extended (−55oC to +125oC) temperature ranges. Samples are available on request.

To request information on Holt’s ARINC 429, CAN (ARINC 825), MIL-STD-1553 and other product lines, readers should contact Holt at (949) 859-8800, by e-mail at [email protected], or visit the Holt website at

About Holt Integrated Circuits

Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military aircraft data bus and display applications.  The company’s products are specified by more than 400 manufacturers worldwide and are employed in flight control, navigation, engine management, communications, safety equipment, and in-flight entertainment systems.

Holt’s range of ICs supporting the ARINC 429 standard is the widest in the industry, and its MIL-STD-1553 transceivers are recognized as the industry’s smallest, having the lowest power consumption.  In addition, Holt MIL-STD-1553 integrated terminals offer the most compact, cost effective solution available, integrating protocol, transceiver and transformers in a single 15x15mm package.  Other data bus products include ARINC 717, CAN (ARINC 825), Ethernet, RS-485/422, discrete-to-digital and analog switches.

Select products are available to DSCC SMD specifications. Holt also offers product compliant to the European Union "RoHS Directive /95/EC".

Holt Integrated Circuits is AS9100D:2016 and ISO 9001:2015 registered.


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Holt Integrated Circuits

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