72-bit WIDE DDR2 memory, with space qualification
The 3D2D4G72UB3478 is packaged in a 191 BGA available with lead-free or leaded balls, is radiation tolerant and is available in industrial and specific temperature range for high reliability
space applications. Pierre-Eric Berthet, VP Marketing and Sales at 3D PLUS, comments, “We are able to offer the first space qualified wide data bus DDR2 Memory module targeted for Virtex-5QV FPGAs and DDR2 interface IP. The Virtex-5QV, which are Rad-Hard by design, is being rapidly adopted by the Space community. By coupling Xilinx Virtex-5QV FPGAs with 3D Plus’ 72bit DDR2 memory modules, our mutual customers are achieving the best computing performance for space qualified electronics”.
The memory uses core & I/O supply voltage of 1.8V +/- 0.1V; has data rate of 400, 553, or 667 Mbps; has on-die termination and embedded bypass capacitors for excellent signal integrity. Its radation tolerance is TID greater than 50 krad(Si); SEL LET Threshold greater than 60Mev.cm2/mg; and SEU characterised. It occupies a 29 x 19 x 7.6 mm package and weighs 6 gr.
The photographs show the 32% saving in PCB area and 55% saving in interconnections, in a typical board layout with the Xilinx FPGA, vs, a discrete approach.
3D Plus, www.3d-plus.com
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