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MC-4R256FKK6K Datasheet(PDF) 1 Page - Elpida Memory

Part # MC-4R256FKK6K
Description  256MB 32-bit Direct Rambus DRAM RIMM Module
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Manufacturer  ELPIDA [Elpida Memory]
Direct Link  http://www.elpida.com/en
Logo ELPIDA - Elpida Memory

MC-4R256FKK6K Datasheet(HTML) 1 Page - Elpida Memory

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Document No. E0268N10 (Ver. 1.0)
Date Published April 2002 (K) Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2002
Elpida Memory, Inc. is a joint venture DRAM company of NEC Corporation and Hitachi, Ltd.
PRELIMINARY DATA SHEET
256MB 32-bit Direct Rambus DRAM RIMM
 Module
MC-4R256FKK6K (64M words
×××× 16 bits ×××× 2 channels)
Description
The 32-bit Direct Rambus RIMM module is a general-
purpose high-performance lines of memory modules
suitable for use in a broad range of applications
including computer memory, personal computers,
workstations,
and
other
applications
where
high
bandwidth and latency are required.
The 32-bit RIMM module consists of 288Mb Direct
Rambus DRAM (Direct RDRAM) devices. These are
extremely high-speed CMOS DRAMs organized as
16M words by 18 bits. The use of Rambus Signaling
Level (RSL) technology permits the use of conventional
system and board design technologies.
The 32-bit
RIMM modules support 800MHz transfer rate per pin,
resulting in total module bandwidth of 3.2GB/s.
The 32-bit RIMM module provides two independent 16
bit memory channels to facilitate compact system
design.
The "Thru" Channel enters and exits the
module to support a connection to or from a controller,
memory slot, or termination. The "Term" Channel is
terminated on the module and supports a connection
from a controller or another memory slot.
The
RDRAM
architecture
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
RDRAM device multi-bank architecture supports up to
four simultaneous transactions per device.
Features
• 256MB Direct RDRAM storage and 256 banks total
on module
• 2 independent Direct RDRAM channels, 1 pass
through and 1 terminated on 32-bit RIMM module
• High speed 800MHz Direct RDRAM devices
• 232 edge connector pads with 1mm pad spacing
 Module PCB size: 133.35mm × 39.925mm ×
1.27mm
 Gold plated edge connector pads contacts
• Serial Presence Detect (SPD) support
• Operates from a 2.5V (±5%) supply
• Low power and power down self refresh modes
• Separate Row and Column buses for higher
efficiency


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