Sensor Data Transmission on ARINC 429 Bus with No Software or MCU

Thursday, August 01, 2013

Mission Viejo, CA (August 1, 2013) – Holt Integrated Circuits today demonstrated the collection of sensor data and periodic real-time transmission on an ARINC 429 bus with no software or MCU. The key enabler of this capability is the recently announced HI-8470, a 16-channel discrete-to-digital sensor with built-in ARINC 429 transmitter. All sense input thresholds and ARINC 429 transmission control are programmed via logic level input pins, eliminating the need for a microprocessor or software interface and greatly reducing software certification costs.

A simple 3.3V evaluation board containing an ADC and Holt’s HI-8470 is used to interface with an external sensor. The ADC converts the sensor data to digital signals which are detected by the HI-8470 and autonomously transmitted on an ARINC 429 bus without any software or MCU. The compact 2 inch board may be easily interfaced to any external sensor and all functions and configuration are performed by on-board hardware switches.

“This board effectively demonstrates how easy it is to use our HI-8470 in a simple sensing application,” said George Noh, Director of Sales and Marketing at Holt. “Since no software or programming is required, users can easily adapt this design for their own sensing applications.”

Application Notes and Evaluation Boards are available from Holt’s website.

To request information on Holt’s ARINC 429, CAN, MIL-STD-1553 and other product lines, readers should contact Holt at (949) 859-8800, by e-mail at, 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 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, RS-485/422 and analog switches. Select products are available to DSCC SMD specifications. Holt also offers product compliant to the European Union "RoHS Directive 002/95/EC".

Holt Integrated Circuits is ISO 9001:2008 registered and is a STACK certified supplier.





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