
EOL
Produ
ct
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MOS INTEGRATED CIRCUIT
MC-4R64FKE8D
Direct Rambus DRAM RIMM
TM Module
64M-BYTE (32M-WORD x 18-BIT)
DATA SHEET
Document No. E0080N21 (Ver 2.1)
Date Published February 2006 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2001-2006
NEC Corporation. 2000
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
Description
The Direct Rambus RIMM module is a general-purpose high-performance memory module subsystem suitable for
use in a broad range of applications including computer memory, personal computers, workstations, and other
applications where high bandwidth and low latency are required.
MC-4R64FKE8D modules consists of two 288M Direct Rambus DRAM (Direct RDRAM) devices (
PD488588).
These are extremely high-speed CMOS DRAMs organized as 16M words by 18 bits. The use of Rambus Signaling
Level (RSL) technology permits 600MHz, 711MHz or 800MHz transfer rates while using conventional system and
board design technologies.
Direct RDRAM devices are capable of sustained data transfers at 1.25 ns per two bytes (10 ns per sixteen bytes).
The architecture of the Direct RDRAM enables the highest sustained bandwidth for multiple, simultaneous, randomly
addressed memory transactions. The separate control and data buses with independent row and column control yield
over 95 % bus efficiency. The Direct RDRAM's 32 banks support up to four simultaneous transactions per device.
Features
184 edge connector pads with 1mm pad spacing
64 MB Direct RDRAM storage
Each RDRAM has 32 banks, for 64 banks total on module
Gold plated contacts
RDRAMs use Chip Scale Package (CSP)
Serial Presence Detect support
Operates from a 2.5 V supply
Powerdown self refresh modes
Separate Row and Column buses for higher efficiency
Over Drive Factor (ODF) support
This product became EOL in September, 2003.