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SAN CLEMENTE, CA — December 1, 2004 — Close on the heels of introducing the first 1GB density low-profile (.7 inches) DDR Dual In-Line Memory Module (DIMM) last month, Legacy Electronics now offers a DDR2-technology module with a board height of only .85 inches. Standard 2GB DDR2 modules typically come in board heights of around 1.18", too high for vertical installs in blade server applications. To achieve 2GB application, design engineers had to tilt the socket for the module to fit.
No longer necessary. The Low-Profile DDR2™ DIMM with Canopy® technology makes it possible to mount on a vertical socket in blade server or embedded computer applications, bringing DDR2 speed, low-voltage operation, and leadless FBGA packaging to these environments.
Kelvin Marino, Legacy's director of application engineering and new product development, said: "As with the Point Seven™ module released recently, the benefits of using the Low-Profile DDR2 DIMM are many. Memory controller net lengths are reduced, more airflow results, and more memory slots can be designed into system boxes."
These JEDEC-standard, ECC-registered DIMMs are available in 512MB, 1GB, and 2GB densities (see Table 1 below). The modules consist of 18 or 36 CMOS DDR2 SDRAMs in FBGA packages on a 240-pin glass epoxy substrate.
The Canopy® leadless FBGA component carrier is part of Legacy Electronics' patented, three-dimensional assembly technology and is an alternative to conventional chip stacking.
Table 1: DDR2 0.85" (21.60mm) ECC Module Product Offering
Part Number Density Speed Mhz Config. Latency Module Ranks
x506472J30A-37A 512MB PC2-4200 533 64Megx72 CL4-4-4 Single
x506472J30A-50A 512MB PC2-3200 400 64Megx72 CL3-3-3 Single
x512872M30A-37A 1GB PC2-4200 533 128Megx72 CL4-4-4 Single
x512872M30A-50A 1GB PC2-3200 400 128Megx72 CL3-3-3 Single
x525672M30B-37A 2GB PC2-4200 533 256Megx72 CL4-4-4 Dual
x525672M30B-50A 2GB PC2-3200 400 256Megx72 CL3-3-3 Dual
To access the new Low-Profile DDR2 DIMM specifications, go to www.legacyelectronics.com/upload/datasheet/x525672M30B-yyA_A.pdf
Founded in 1993 and located among the new high-technology companies of South Orange County, California, Legacy Electronics is home of the patented Canopy® (chip-stacking alternative, a three-dimensional printed circuit board subassembly and process technology, and the new low-form-factor 'Point Seven™' memory module product line. Legacy is an ISO 9001:2000 certified manufacturer, designer and tester of high-speed, high-density memory modules, printed circuit boards, and other computer products.
For complete Legacy Electronics contact information, including worldwide sales representatives and distributor locations, go to www.legacyelectronics.com or call 949-498-9600, or toll-free at 888-466-3853.
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