HI-3220

December 2018 HI-3220 High Density 16Rx / 8Tx or 8Rx / 4Tx ARINC 429 Protocol IC with optional Integrated Line Receivers GENERAL DESCRIPTION The HI-3220 from Holt Integrated Circuits is a family of single chip CMOS high density application data management ICs capable of managing, storing and forwarding avionics data messages between sixteen ARINC 429 receive channels and eight ARINC 429 transmit channels. Options for eight receive and four transmit channels are also available in a compact, cost effective 7mm x 7mm QFN package footprint. The ARINC 429 buses may operate independently - the IC can be programmed to automatically re-format, re-label, re-packetize and re-transmit data from ARINC 429 receive buses to ARINC 429 transmit buses. Alternatively, a host CPU can send and receive data on multiple buses. 32KB of on-board memory allows received data to be logically organized and automatically updated as new ARINC 429 labels are received via ARINC 429 label mailboxes. A 64 message dee...