MIL-STD-1553 RT Validation Using Holt HI-1567 Dual Transceiver

Monday, October 06, 2003

The combination of Holt’s HI-1567 COTS Dual Transceiver and Condor’s CORE‑1553® Intellectual Property achieved full MIL‑STD‑1553 RT Validation at Test Systems, Inc. in Phoenix Arizona. Military design engineers have confidently coupled these small, low cost transceivers with their own FPGAs or ASICs to accomplish significantly smaller and lower cost MIL‑STD‑1553 Databus Terminals.

Mission Viejo, CA (October 6, 2003) - Holt Integrated Circuits, a leading provider of monolithic ICs for military and commercial avionics databus applications, today announced that their MIL-STD-1553 HI-1567 COTS dual transceiver IC, designed into a full-function Condor Engineering databus terminal using Condor's MIL-STD-1553 Intellectual Property (IP), CORE-1533®, achieved full RT Validation. Testing was performed at Test Systems, Inc., an independent Air Force approved testing service for MIL-STD-1553 remote terminals. "Validation testing was performed on Condor's product using the Holt dual 5V transceiver," said Rick Schuh, V.P. Sales at Condor Engineering. "Condor is pleased to provide the most feature rich, high performance validated RT intellectual property for MIL-STD-1553."

Holt's HI-1567 dual transceiver is used to interface a user's FPGA or ASIC logic to the MIL-STD-1553 bus. "Systems designers typically use Holt transceivers to enable them to take full advantage of the breakthrough technological advances in device integration to achieve reduced chip count, higher MTBF, more available board space, and lower cost," said Sandy Edberg, director of sales at Holt. The HI-1567 dual transceiver operates at 5V and consists of a single monolithic CMOS device thereby providing lower power consumption than traditional hybrid or single chip devices using bipolar technology. Like all of Holt's MIL-STD-1553 transceivers, the HI-1567 has internal circuits that protect the device from destructive operating conditions such as over-current caused by an unintentional short across the transceiver's output or excessive voltages when connected to an un-terminated bus or stub. The HI-1567 has the same pin-out arrangement and footprint as Holt's recently released HI-1573 dual 3.3V transceiver allowing easy future design upgrade. Package options include a small 20-pin ESOIC package, an ultra-small 7mm x 7mm chip-scale package, or the larger traditional 20-pin ceramic DIP format.

Holt's offerings of COTS MIL-STD-1553 products include 5V and 3.3V dual transceivers, as well as interface transformers. All products are released to production and available for immediate customer evaluation.

Readers interested in learning more about the HI-1567 or any of Holt’s MIL‑STD‑1553 products should contact Holt 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, stores management, engine management, communications, safety equipment, and in-flight information systems worldwide.

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. Holt’s transceivers for MIL-STD-1553 applications are recognized as the industry’s smallest and have the lowest power consumption. Holt Integrated Circuits is a certified ISO9001:2000 supplier and many of its products are also available to DSCC SMD specifications.

About Condor Engineering

Condor Engineering is a leading supplier of avionics databus tools and solutions. The Condor product portfolio includes embedded, test, and simulation interfaces for Commercial (ARINC) and Military (MIL-STD-1553, MMSI) avionics databuses. Condor is committed to total customer satisfaction, superior product quality and exceptional service as demonstrated by its ISO 9001:2000 registration. Founded in 1989, Condor Engineering is headquartered in Santa Barbara, CA, and is supported by a worldwide network of manufacturer's representatives and distributors. For more information please visit Condor Engineering's web site at

CORE-1553® is a registered trademark of Condor Engineering.