The HI-3210 from Holt Integrated Circuits is a single chip CMOS data management IC capable of managing, storing and forwarding avionics data messages between eight ARINC 429 receive channels and four ARINC 429 transmit channels.

The ARINC 429 buses may be operated independently, allowing a host CPU to send and receive data on multiple buses, or the HI-3210 can be programmed to automatically re-format, re-label, re-packetize and retransmit data from ARINC 429 receive buses to ARINC 429 transmit buses.

A 32K x 8 on-board memory allows received data to be logically organized and automatically updated as new ARINC 429 labels.

An auto-initialization feature allows configuration information to be up-loaded from an external EEPROM on reset to facilitate rapid start-up or operation without a host CPU.

The HI-3210 interfaces directly with Holt’s HI-8448 octal ARINC 429 receiver IC and HI-8596 or HI-8592 ARINC 429 line drivers.



  • Eight ARINC 429 Receive channels
  • Four ARINC 429 Transmit channels
  • 32KB on-chip user-configurable data storage memory
  • Programmable received data filtering for ARINC 429 buses
  • Programmable transmission schedulers for periodic ARINC 429 message broadcasting
  • Serial Peripheral Interface (SPI) (20MHz)
  • Auto-initialization feature allows power-on configuration or independent operation without a CPU
  • ARINC 429 Loopback self-test mode
  • RAM Built-in self-test (BIST)
  • Industrial (-40°C to +85°C) and Extended (-55°C to +125°C) temperature ranges supported.  


  • Data concentrators 
  • Avionics data management, storage & forwarding
  • CMOS/TTL to ARINC Level Conversion
  • CMOS/TTL to RZ & NRZ Level Conversion


ADK-3210: HI-3210 ARINC 429 Octal Receiver Quad Transmitter Application Development Kit

ADK-3210: HI-3210 ARINC 429 Octal Receiver Quad Transmitter Application Development Kit

This kit demonstrates the broad feature set of Holt’s ARINC 429 Data Management Engine, HI-3210, an Octal Receiver, Quad Transmitter. A version of the demonstration software is pre-programmed into the microcontroller flash; the board is operational right out of the box without installing or running the provided software development tools.
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