TTTech, a supplier of solutions in the field of time-triggered technologies and ON Semiconductor, are developing a controller for TTP (Time-Triggered Protocol). This new TTP controller will target cross-industry applications and especially the aerospace market.

TTTech and ON Semiconductor will offer the new high-speed data bus controller at up to 25 Mb/s per channel for aerospace projects. The TTTech/ON Semiconductor technology arrangement will help developers of critical applications manage risks of capital-intensive aerospace programs more effectively.

The new device is intended to be compatible with the TTP controller AS8202NF available from Austriamicrosystems and will have the same pinout. This will effectively ensure the sourcing of TTP controllers by two independent suppliers. In addition, the ON Semiconductor TTP device will offer a configurable 8B/10B coding at communication speeds of 10 Mb/s configured as a RS-485 physical layer.

The data rate for TTP communication over RS-485 is doubled compared with previous technologies while maintaining DC-free operation according to aerospace requirements. This higher-speed option will be supported by TTTech products in line with upcoming customer projects.

TTP communication controllers offer a maximum level of fault tolerance, safety, and availability for aerospace applications. The TTP chip IP is designed to meet aerospace requirements in compliance with DO-254/DO-178B Level A. They are successfully applied in modular and distributed control systems in aerospace programs such as the Airbus A380, Lockheed Martin F-16 and in the Boeing 787 Dreamliner.

TTTech and ON Semiconductor plan to have engineering samples available by the second quarter of 2009.

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