Airbus Defence and Space

COMPONENTS, ENGINEERING TOOLS AND SERVICES

1553 remote terminal ASIC

The MIL-STD-1553B RT ASIC is a cost effective MIL-STD-1553B Remote Terminal ASIC sub- system developed in a radiation tolerant technology qualified for space applications.

The MIL-STD-1553B RT ASIC is able to manage the MIL-STD-1553B dialogue in remote terminal mode only and has a dual bus capability. This product shall be used in addition with the MIL-STD-1553B Dual Transceiver or two MIL-STD-1553B Single Transceivers in order to manage dual redundant MIL-STD- 1553B applications.

Features / technical details

The MIL-STD-1553B RT ASIC is able to manage the MIL-STD-1553B dialogue in remote terminal mode only and has a dual bus capability.

This product shall be used in addition with the MIL-STD-1553B Dual Transceiver or two MIL-STD-1553B Single Transceivers in order to manage dual redundant MIL-STD- 1553B applications. It can be connected one hand to a dual redundant MIL-STD-1553B bus with an external isolation transformer for each bus and, on the other hand, to the user thanks to an interface composed of a 16 bits data bus, a 12 bits address bus and a control bus. Sub-system easy integration is achieved thanks to the opened user interface and optimised architecture. It is possible to connect the MIL-STD-1553B RT ASIC to register, CAN or memory components without additional processing unit.

Dedicated services are also provided in order to download the user application from protocol management tasks: words validity is automatically checked and only valid messages are transmitted to the application.

The MIL-STD-1553B RT ASIC low power consumption and radiation tolerance, better than 100 kRads (functional), is especially relevant for space applications

Main Functions
  • Fully compliant to MIL-STD-1553B standard
  • Dual MIL-STD-1553B bus capability Words validity check Transmission of only valid messages to the application
  • Management of the status word and of the BIT word
  • Programmable no response time out period
  • Management of a configuration PROM which characterises the terminal for each subaddress (Legality /illegality, Word count associated, Selection of indirect addressing, Flip /flop buffering, User type (register,CAN,memory) )
  • Management of the user interface
Technical features
  • CMOS epitaxial process
  • Gate array technology (12000 gates)

Applications

It is flight proven on ARIANE 5 and space qualified on several programs like ASAR, MHS, STENTOR, COLOMBUS and International Space Station.

Reference customers

ESA, CNES, Intelsat, Inmarsat, Eutelsat, Hispasat, ....