Elpida Memory's 64 Megabit SDR Mobile RAM Devices Bring Improved Power Consumption and Increased Bandwidth to Cellular Applications.Business Editors/High-Tech Writers TOKYO--(BUSINESS WIRE)--Jan. 7, 2004 New Devices Utilize Edge Pads for Easier Implementation into Multi-Chip Package Designs Elpida Memory, Inc. (Elpida), Japan's leading global supplier of Dynamic Random Access Memory Dynamic random access memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real capacitors leak charge, the information eventually fades unless the capacitor charge is refreshed periodically. (DRAM), today announced the availability of its 64 Megabit single data rate (SDR See software defined radio. ) Mobile RAM devices. The new devices deliver low-power consumption and high-bandwidth performance to cellular products, and they also utilize edge pads which allow the devices to be easily, and cost-effectively, integrated into multi-chip package (MCP (1) See Microsoft certification. (2) (MultiChip Package) A chip package that contains two or more chips. It is essentially a multichip module (MCM) that uses a laminated, printed-circuit-board-like substrate (MCM-L) rather than ceramic (MCM-C). ) and System-in-Package (SIP) designs. "Current and next-generation cellular applications require high-bandwidth capability within a low-power environment," said Jun Kitano, director of Technical Marketing for Elpida Memory (USA). "Elpida's 64 Megabit Mobile RAM devices meet the performance demands of the cellular market and use edge pads that allow customers to easily package the memory devices with the processor in MCP and SIP designs." Mobile RAM for Cellular Applications Application CPUs of advanced 2.5G and/or 3G cellular phones require high-density (128 Megabit, 256 Megabit) and high-speed memory devices. Base-band CPUs traditionally use NOR Flash plus SRAM See static RAM. SRAM - static random-access memory or Pseudo SRAM for memory functions. However, base-band CPUs now cover voice communication as well as multimedia services, thus a higher density (64 Megabit to 128 Megabit) and higher bandwidth performance than that provided by SRAM is necessary. Therefore, many base-band CPUs are starting to support a Mobile RAM interface. Elpida's new 64 Megabit Mobile RAM device satisfies the new base-band CPU CPU in full central processing unit Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit. requirements. Another major benefit of using the 64 Megabit Mobile RAM device is its ease of implementation into MCP and SIP designs. Elpida's new devices facilitate this process further through the use of edge pads. 64 Megabit SDR Mobile RAM Features Elpida's new SDR Mobile RAM devices (Part numbers: EDL6416CABH CABH Conventional-direction Asymmetric Branch-line Hybrid (microwave integrated circuit) , ECL6416CACN CACN Cost Account Charge Number CACN Contract Adjustment Change Notice CACN Canadian Association of Child Neurology Inc. , EDL6416BABH BABH Bombs and Beating Hearts (band) BABH Bachelors of Applied Business and Hospitality , ECL6416BACN BACN Battlefield Airborne Communications Node (US Air Force) BACN Business Advisory Centre Northumberland (Cobourg, ON, Canada) ) are organized as 1M words x 16-bits x 4 banks, and they have a low-voltage operation of 1.8V or 2.5V, respectively. The devices operate at 133 MHz (2.5V) or 100 MHz (1.8V), and they offer a CAS latency (CL) of 2, 3. They are available as 8 millimeter (mm) x 8 mm, 54-ball FBGA packages or as a bare die. Elpida's Mobile RAM devices offer an advanced feature set that includes auto temperature compensated self-refresh (ATCSR). Auto TCSR automatically changes the internal self-refresh period based on temperature and eliminates the need for external operation/control to reduce the self-refresh current. The devices also support deep power-down mode and Partial Array Self Refresh (PASR) to further reduce power consumption, thus allowing for increased battery life. Elpida offers a broad Mobile RAM product line-up ranging from 64 Megabit to 256 Megabit densities. About Elpida Memory, Inc. Elpida Memory, Inc. is a manufacturer of Dynamic Random Access Memory (DRAM) with headquarters based in Tokyo, Japan, and sales and marketing operations located in Japan, North America, Europe and Asia. Elpida offers a broad range of leading-edge DRAM products. Elpida is a joint venture company formed by NEC (NEC Corporation, Tokyo, www.nec.com, www.necus.com) An electronics conglomerate known in the U.S. for its monitors. In Japan, it had the lion's share of the PC market until the late 1990s (see PC 98). NEC was founded in Tokyo in 1899 as Nippon Electric Company, Ltd. and Hitachi on December 20, 1999 and has been in operation since April 2000. For more information, visit www.elpida.com. All trademarks are the property of their respective owners. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion