MIL-STD-1553 avionics data bus interface from National Hybrid also supports MIL-STD-1760

RONKONKOMA, N.Y., 10 Feb. 2010. National Hybrid Inc. in Ronkonkoma, N.Y., is introducing Terminal+ multi-protocol MIL-STD-1553 avionics data bus interface with integrated transformers, which can function as a simultaneous monitor/remote terminal, a programmable bus controller, a remote terminal, or a bus monitor.

Posted by John Keller

RONKONKOMA, N.Y., 10 Feb. 2010. National Hybrid Inc. in Ronkonkoma, N.Y., is introducing Terminal+ multi-protocol MIL-STD-1553 avionics data bus interface with integrated transformers, which can function as a simultaneous monitor/remote terminal, a programmable bus controller, a remote terminal, or a bus monitor.

The Terminal+ (pronounced Terminal Plus) ensures the integrity of data and control structures, and its integrated transformers occupy minimal board space and simplify circuit board layout.

The avionics databus component serves as an interface between a dual redundant bus and a host processor, and supports MIL-STD-1553 and MIL-STD-1760 functionality in one low-power component, which makes the Terminal+ suitable for commercial and military avionics.

The subsystem interface can be a local bus or a PCI bus. The local bus interface appears to the host processor as 64K words of 16-bit wide, dual port memory controlled by standard RAM signals. The PCI interface is a 32-bit 33 MHz target. The Terminal+ easily interfaces with all popular processors and buses, since no external logic is required.

The Terminal+ features a protocol ASIC, which controls the multi-protocol functions, two 5- or 3.3-volt monolithic transceivers and a 64k x 16 shared RAM. All logic I/O is 3.3 volts that is 5-volt tolerant. The only external component required is a 20 MHz clock. The open memory architecture increases design flexibility and reduces software development time and effort.

The built-in interrupt controller uses an internal FIFO that stores message header information. Six pending interrupts and an overflow interrupt can be pushed on to the FIFO, which can be configured to revolve or stop when full.

The Terminal+ implements complete error checking in all operational modes: bus controller, remote terminal, bus monitor and bus monitor/remote terminal. Multiple autonomous data tables ensure data integrity.

The Terminal+ measures 1.05 by .75 by .185 inches, and is available in a ball grid array with 117 large pitch, oversized balls to eliminate solder shorting risks. Operating temperature is the full military range of -55 to 125 degrees Celsius, storage temperature is -65 to 150 C.

For more information contact National Hybrid online at www.nationalhybrid.com. National Hybrid is owned by API Technologies Corp. in Ronkonkoma, N.Y.

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