February 28, 2002 in Social Responsibility News

SAMSUNG Electronics Unveils 128Mb DDR Graphics Memory Chip

SEOUL, Korea - February 28, 2002 - Samsung Electronics has introduced a 128-Megabit Double-Data-Rate Synchronous DRAM (DDR SDRAM) capable of processing data at 3.2 Gigabytes per second, the fastest DRAM available today. The DDR chip operates on a clock speed of 400MHz, so data transmission is 800Mbps With a data processing speed that is 30 percent faster than that of the 300MHz DDR SDRAM, Samsung's new 400MHz chip satisfies the high-speed requirements of today's DDR graphics memory market.


The chip operates on 2.8 volts and comes in a 12mm by 12mm 144-ball fine-pitch ball grid array (FBGA) package, the JEDEC standard for x32 DDR SDRAMs. Therefore, memory upgrades can be performed without having to replace the graphics board. Samsung Electronics completed development of the 300MHz DDR SDRAM last year. Now, the company is the first to introduce the 400MHz device, thereby maintaining its leadership position in the DDR graphics memory market.


Samsung is currently sampling its 400MHz DDR graphic memory - part number K4D26323RA-GC25 -- to major customers. The company plans to start mass production from the second quarter. Sales for the new device is expected to reach US$300 million this year, further strengthening the company's market lead. Samsung Electronics already sells approximately 80 percent of the world's DDR chips for graphics applications.


DDR chips are expected to be used in up to 70 percent of all the graphics boards this year. Thus, graphics board memory requirements are quickly moving from conventional SDRAMs to DDR SDRAMs. The x32 DDR SDRAM is used in routers and network switches as well as in graphics buffer memory, which requires high-speed data processing capability. The device is also widely used in gaming platforms, set-top boxes and other consumer products.



Samsung Electronics Co. Ltd. is a global leader in semiconductor, telecommunication, and digital convergence technology. Samsung Electronics employs approximately 64,000 people in 89 offices in 47 countries. Samsung Electronics is the world's largest producer of memory chips, Smart Card Chips, Display Driver ICs, TFT-LCDs, CDMA mobile phones, monitors and VCRs. Samsung Electronics consists of four main business units: Digital Media Network, Device Solution Network, Telecommunication Network and Digital Appliance Network Businesses. For more information, please visit the web site, http://samsungelectronics.com


=== 128Mb DDR SDRAM , 400MHz Features ===

.2.8V?% power supply for device operation
.2.8V?% power supply for I/O interface
.SSTL_2 compatible inputs/outputs
.4 banks operation
.MRS cycle with address key programs
-Read latency 3,4,5(clock)
-Burst length (2,4,8 and Full page)
-Burst type (sequential & interleave)
.Full page burst length for sequential burst type only
.Start address of the full page burst should be even
.All inputs except data & DM are sampled at the positive going edge of the system clock
.Differential clock input
.No Write-Interrupted by Read Function
.4 DQS's (1DQS/Byte)
.Data I/O transactions on both edges of Data strobe
.DLL aligns DQ and DQS transitions with Clock transition
.Edge aligned data & data strobe output
.Center aligned data & data strobe output
.DM for write masking only
.Auto & Self refresh
.32ms refresh period (4K cycle)
.144-Ball FBGA
.Maximum clock frequency up to 400MHz
.Maximum data rate up to 800Mbps/pin


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