The NHi-1565 SOIC dual transceiver is the smallest fully compliant 1553/1760 data bus transceiver in a ceramic, hermetically-sealed package.  The NHi-1565 SOIC comes in a standard 5V or a low voltage 3.3V version.  It measures .275 x .504 x .095 inches, and is available in a full military termperature range of -55°C to +125°C.  It is also available in MacAir 

NHi-15137 receivers convert Manchester II bi-phase data into complementary digital outputs.  The transmitters convert complementary digital inputs into Manchester II bi-phase data.  Each transmitter has an independenat digital inhibit.  The NHi-15137 comes in three package styles: plug-in, flat pack, and flat pack with gull wing formed leads.  Three grades are available: Industrial -40°C to +85°C, Industrial -55°C to +125°C, and Military Grade. 

NHi-158xx uses Pulse Transofrmers in the manufacture of these devices ensuring the best possible waveshapes & minimal dynamic offset.  With dimensions of only 1.05" x 0.75" x 0.185" it still contains 117 over-sized balls with large pitch to eliminate solder shorting risks.  It offers a 5V or 3.3V transceiver option, PCI target or local bus interface and dual port, double-buffered 64K x 16 SRAM.