New Holt ARINC 429 Line Driver Requires Only 5V Supplies

Tuesday, May 09, 2006

Mission Viejo, CA (May 9, 2006) – Holt Integrated Circuits announced the release of the new HI-8570 ARINC 429 Line Driver IC, which requires only 5V power supplies. The HI-8570 has the same functionality and small footprint as Holt’s industry-standard HI-8585 ARINC 429 Line Driver, but operates from a +5V and –5V supply line. The new part was developed in response to customer demand for a line driver that did not require the usual +/-12V or +/- 15V supplies that are often only included in applications to accommodate the old style line drivers.

Because of its low power consumption, the HI-8570 negative supply may be provided by a separate, low-cost, small footprint DC/DC converter IC, such as the Maxim MAX1673. A single MAX1673 may be used to power the negative rail of two HI-8570 line drivers. This way, the board’s 5V logic supply is the only power necessary to drive the ARINC 429 Line Drivers.

Packaged in an 8-pin thermally enhanced plastic SOIC, the HI-8570 consumes only 170mW when transmitting into a full ARINC 429 load. A digital input pin switches the part’s output characteristics between ARINC 429 High-Speed and Low-Speed transmission modes. The HI-8570 is logically identical with the HI-8585 allowing it to be used with existing ARINC 429 protocol devices such as the Holt HI-8584 or custom designs. The HI-8570’s digital inputs are compatible with 3.3V or 5V logic.

For further information regarding the ARINC 429 family of products, please contact the Holt Sales Department at (949) 859-8800, by e-mail at, or by visiting the Holt Web Site at

About Holt Integrated Circuits

Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military data bus and display applications. The company’s products are specified by more than 250 manufacturers and are employed in flight control, navigation, engine management, communications, safety equipment, and in-flight entertainment systems worldwide.

Holt's transceivers for MIL-STD-1553 applications are recognized as the industry's smallest and have the lowest power consumption. In addition, Holt also offers MIL-STD-1553 Manchester encoder/decoders and interface transformers. Holt’s range of ICs supporting the ARINC 429 standard is the widest in the industry, and its display drivers offer high-voltage operation as well as innovative design features to enhance ease of use and testability. Select products are also available to DSCC SMD specifications. Holt Integrated Circuits is a certified ISO 9001:2000 supplier.