512MB, 1GB: (x72, DR) 184-Pin DDR VLP RDIMM
Features
DDR SDRAM VLP Registered DIMM
MT18VDVF6472D – 512MB
MT18VDVF12872D – 1GB
For the latest data sheet, refer to Micron’s Web site: www.micron.com/products/modules
Figure 1:
184-Pin VLP DIMM (MO-206)
Features
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184-pin, very low profile dual in-line memory
module (VLP DIMM)
Very Low Profile Height 0.72in (18.29mm)
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Fast data transfer rates: PC2100 or PC2700
Utilizes 266 MT/s and 333 MT/s DDR SDRAM
components
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Registered inputs with one-clock delay
Phase-lock loop (PLL) clock driver to reduce loading
Supports ECC error detection and correction
512MB (64 Meg x 72) and 1GB (128 Meg x 72)
VDD = VDDQ = +2.5V
Options
Marking
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Package
184-pin DIMM (standard)
184-pin DIMM (lead-free)
G
Y
VDDSPD = +2.3V to +3.6V
2.5V I/O (SSTL_2 compatible)
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2
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Memory clock, speed, CAS latency
6ns (166MHz), 333 MT/s, CL = 2.5
7.5ns (133 MHz), 266 MT/s, CL = 2
7.5ns (133 MHz), 266 MT/s, CL = 2
Commands entered on each positive CK edge
DQS edge-aligned with data for READs; center-
aligned with data for WRITEs
Internal, pipelined double data rate (DDR)
architecture; two data accesses per clock cycle
Bidirectional data strobe (DQS) transmitted/
received with data—i.e., source-synchronous data
capture
Differential clock inputs CK and CK#
Four internal device banks for concurrent operation
Programmable burst lengths: 2, 4, or 8
Auto precharge option
Auto refresh and self refresh modes
7.8125µs maximum average periodic refresh
interval
-335
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-262
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-26A
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7.5ns (133 MHz), 266 MT/s, CL = 2.5
PCB height
-265
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Very Low-Profile 0.72in (18.29mm)
Notes:1. Contact Micron for product availability.
2. CL = CAS (READ) latency; registered mode
adds one clock cycle to CL.
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Serial presence detect (SPD) with EEPROM
Programmable READ CAS latency
Gold edge contacts
Dual rank
PDF: 09005aef81c73825/Source: 09005aef81c73837
DVF18C64_128x72D_1.fm - Rev. A 8/05 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003, 2004, 2005 Micron Technology, Inc. All rights reserved.
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Products and specifications discussed herein are subject to change by Micron without notice.