Radiation-hardened 3.3V MIL-STD-1553 Dual Transceiver for space applications from Holt – SatNews

October 28, 2024

Holt Integrated Circuits recently intro’d their HI-1592, a radiation-hardened 3.3V MIL-STD-1553 dual transceiver for high reliability and space applications.

Holt has been a supplier of MIL-STD-1553 IP, protocol, transceiver and transformer components to the military and aerospace industries for over 20 years and this new product offering provides additional robustness for demanding Hi-Rel applications such as launch vehicles, high-altitude aircraft, low-orbit satellites, and space.

As aircraft fly at higher altitudes or in space they become more susceptible to exposure to cosmic rays, resulting in effects such as single-event transient (SET), single event latch-up (SEL) and single event burnout (SEB), any of which could result in degradation or failure of electronic equipment. To that end, electronic equipment designed to fly in these environments needs some level of latch-up immunity or radiation hardness assurance (RHA) against the effects of cosmic rays.

The HI-1592 is latch-up immune and proven to withstand a single-event upset (SEU) with an LET of at least 67.7 MeV-cm2/mg. The device is radiation tolerant to a total ionizing dose (TID) of 100 krad(Si). It is ideal for launch vehicle and high-altitude aircraft applications using MIL-STD-1553 data bus communication.

The device also features 1.8V, 2.5V and 3.3V compatible digital I/O. This feature gives users more flexibility to interface with a broad range of FPGAs and controllers, avoiding the use of level shifters and other additional circuitry. The HI-1592 is ideal for use with Holt’s DO-254 certifiable MIL-STD-1553 IP Core, HI-6300, instantiated in a radiation-hardened FPGA.

“High reliability and latch-up immunity are critical at higher altitudes, where aircraft are more susceptible to cosmic ray exposure and failure,” said George Noh, Director of Sales and Marketing at Holt. “This new device will provide our customers with additional assurance that their product is robust and reliable in this harsh and demanding environment.”

The HI-1592 is available in a hermetic 24-pin ceramic SOIC. The device is offered in extended −55oC to +125oC temperature range, with the option of burn-in, 100% PIND testing and compliance to MIL-PRF-38535 QML class Q.

Applications

The Holt 1592 data sheet PDF is available at this direct link…

About Holt Integrated CircuitsHolt 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. Holt also offers its MIL-STD-1553 protocol as a DAL A, DO-254 Certifiable IP Core. 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 EU Directive 2011/65/EU (“RoHS 2”). Holt Integrated Circuits is AS9100D:2016 and ISO 9001:2015 registered.

Filed Under: Dual Transceiver, Holt Integrated Circuits, MIL-STD, News, Radiation-Hardened