News

Holt Integrated Circuits announced today a new transceiver compliant with the ARINC 717 and ARINC 429 protocols. The device provides a seamless interface between the digital protocol and Harvard Bi-Phase (HBP) and / or Bi-Polar Return-to-Zero (BPRZ) encoded physical layers. ARINC 717 is the main protocol used in aircraft Digital Flight Data Recorders (“black boxes”) and Digital Flight Data Acquisition Units.

Holt Integrated Circuits, announces 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.

Holt Integrated Circuits today announced validation of its latest ARINC 429 line receiver family, HI-8450/1 and HI-8454/5, with the lightning requirements of RTCA/DO-160G, Section 22, Level 3 Pin Injection Test Waveform Set A (3 & 4), Set B (3 & 5A) and Set Z (3 & 5B), using no additional external components. Validation was carried out by an independent ISO accredited lab using industry standard procedures and practices.

Holt Integrated Circuits today announced that Gables Engineering selected its HI-8444 Quad ARINC 429 Line Receiver and HI-8596 3.3V Single-Rail ARINC 429 Line Driver for use in the new Gables gTools ARINC Bus Analyzer.

Holt Integrated Circuits today introduced a new Application Programming Interface (API) for its MIL-STD-1553 integrated terminal devices, HI-6130 and HI-2130. The API applies a standardized set of functions for configuration, control, status, and interrupt processing, isolating the programmer from low-level register, RAM and discrete I/O transactions operating in the background.

Holt Integrated Circuits today introduced several application development kits to complement its recently introduced family of autonomous ARINC 429 devices, HI-8470, HI-8475 and HI-8476. These devices connect directly to the ARINC 429 bus and enable transmission or reception of data without using an MCU or software. All control and configuration is done in hardware, by strapping logic-level input pins.

Holt introduces a new ARINC 429 line receiver family with fully integrated lightning protection circuitry. The built-in circuitry ensures compliance with RTCA/DO-160G, Section 22 Level 3 Pin Injection Test Waveform Set A (3 & 4), Set B (3 & 5A) and Set Z (3 & 5B), enabling direct connection to the ARINC 429 bus without external components. All devices operate from a 3.3V or 5.0V supply.

Contrary to what one may assume, a repeater is more than simply connecting the output of an ARINC 429 line receiver to the input of a line driver. Such simple solutions usually result in transmitted waveforms that violate ARINC 429 timing requirements. Holt provides an elegant and cost effective solution for an autonomous ARINC 429 repeater using a two-component solution, eliminating microcontroller, software and associated certification costs, and any additional ARINC 429 protocol devices.

Holt Integrated Circuits expands its discrete-to-digital portfolio with the introduction of HI-8437, a 3.3V, 32-channel, discrete-to-digital sensing IC with SPI interface and low threshold sensing capability. The high impedance sense input thresholds and hysteresis are programmable via the 20MHz SPI port in 100mV steps, from 0.4V to 5.2V and all 32 sense output states may be read with a single SPI command. In addition, the device has built-in lightning protection on the sense inputs.

Holt Integrated Circuits today announced the introduction of HI-1582, a pin-compatible, “form and fit” drop-in replacement for the Data Device Corporation MIL-STD-1553 transceiver, BU-63133L8. The new device is a single-channel transceiver designed for use with Holt MIL-STD-1553 isolation transformers with 1:2.50 turns ratio.