Legacy Electronics Offers First 2GB High-Speed Memory Module Available for 1U Chassis Server Group Design Applications With 1.2-Inch PCB Height.Business Editors/High-Tech Writers SAN CLEMENTE, Calif.--(BUSINESS WIRE)--July 24, 2002 Legacy Electronics announced the first 2GB PC2100 Registered DDR Dual Inline Memory Module (DIMM) that meets a 1.2-inch PCB PCB: see polychlorinated biphenyl. PCB in full polychlorinated biphenyl Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound. height requirement and incorporates the Canopy(TM)(a) 3-D subassembly technology, which facilitates heat dissipation and impedance control. The new DIMM is a Dual Data Rate (DDR) Synchronous Dynamic Random Access Memory (storage) Synchronous Dynamic Random Access Memory - (SDRAM, Synchronous DRAM) A form of DRAM which adds a separate clock signal to the control signals. SDRAM chips can contain more complex state machines, allowing them to support "burst" access modes that clock out a series of (SDRAM (Synchronous DRAM) A type of dynamic RAM (DRAM) memory chip that has been widely used since the late 1990s. SDRAM chips eliminated wait states by dividing the chip into two cell blocks and interleaving data between them. ), registered 184-pin, error correcting code (ECC (1) (Error-Correcting Code) A type of memory that corrects errors on the fly. See ECC memory. (2) (Elliptic Curve Cryptography) A public key cryptography method that provides fast decryption and digital signature processing. ) module, and the first to offer 2GB density at this PCB height. The 2GB module is built using lower-cost, standard, 66-pin TSOPs (thin, small outline packages). "Engineering a module of this density and speed while keeping it manufacturable was a challenge; the Canopy technology facilitated the manufacturability," said Ken Kledzik, chief technology officer. "Plus, we don't compromise the quality of our designs; we support decoupling capacitors for both upper and lower SDRAMs, using three TVSOP TVSOP Thin Very Small Outline Package registers (some manufacturers only use one or two) and a PLL clock buffer." Also available in 512MB and 1GB densities, the JEDEC-standard DIMM uses a 2.5V power supply and offers ECC (error detection and correction (algorithm, storage) error detection and correction - (EDAC, or "error checking and correction", ECC) A collection of methods to detect errors in transmitted or stored data and to correct them. This is done in many ways, all of them involving some form of coding. ). Availability The 2GB, 1.2-inch SDRAM DIMM is available with a 1-2 week lead time, with price discounts for volume quantities. A downloadable, four-page data sheet is available at www.legacyelectronics.com/files/8AL6MDAC-1xDG.pdf, or designers may call toll-free 888/466-3853, or e-mail: techsupport@legacyelectronics.com. About Legacy Electronics Founded in 1993 and located among South Orange County, California's new high-technology companies, Legacy Electronics is an ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9001-registered electronics firm. Three years ago the company purchased and moved into new manufacturing headquarters to accommodate expansion of surface-mount technology (SMT (1) (Surface Mount Technology) See surface mount. (2) (Station ManagemenT) An FDDI network management protocol that provides direct management. Only one node requires the software. SMT - Station Management ) and automated test (ATE) equipment, as well as the hiring of additional personnel. (a) Legacy Electronics' Canopy(TM) technology is a patented, 3-dimensional printed circuit board subassembly process using a single-sided reflow, which increases on-board memory capacity without pre-stacking components. Considered an alternative to traditional stacking technologies, Canopy(TM) reduces memory module manufacturing cost while reducing time-to-market and reliability issues, including thermal failures. Note to Editors: A downloadable jpg e-photo of Legacy Electronics' new 1.2-inch height, 2GB DDR DIMM is available from http://www.legacyelectronics.com/images/8AS6MDLC-1JDG.jpg. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion