This part is a kind of semiconductor called ARINC429.

Function of this product has Bus Interface.

Manufacturers : Actel

Image and pinout :

Some of the text within the PDF file :

ARINC 429 Bus Interface Product Summary Intended Use • • ARINC 429 Transmitter (Tx) ARINC 429 Receiver (Rx) Core Deliverables • Evaluation Version – Compiled RTL Simulation Model, Compliant with the Actel Libero® Integrated Design Environment (IDE) Structural VHDL and Verilog Netlists VHDL or Verilog Core Source Code Synthesis Scripts • • Netlist Version – RTL version – – Key Features • • • • Supports ARINC Specification 429-16 Configurable up to 16 Rx and 16 Tx Channels Programmable FIFO Depth – – – • – – • • • • Up to 512 Words Rx and Tx Channels independently Up to 64 Words Programmable Interrupt Generation • • Verification Testbench – Verilog User Testbenches – – Libero IDE Compatible VHDL and Verilog [ ... ]

ARINC429 PDF Datasheet Download