MT18VDVF12872DG Datasheet, PDF (1/38 Pages) Micron Technology – DDR SDRAM VLP Registered DIMM

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
Features
• 184-pin, very low profile dual in-line memory
module (VLP DIMM)
• Fast data transfer rates: PC2100 or PC2700
• Utilizes 266 MT/s and 333 MT/s DDR SDRAM
components
• 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
• VDDSPD = +2.3V to +3.6V
• 2.5V I/O (SSTL_2 compatible)
• 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
• Serial presence detect (SPD) with EEPROM
• Programmable READ CAS latency
• Gold edge contacts
• Dual rank
Figure 1: 184-Pin VLP DIMM (MO-206)
Very Low Profile Height 0.72in (18.29mm)
Options
Marking
• Package
184-pin DIMM (standard)
184-pin DIMM (lead-free)¹
• Memory clock, speed, CAS latency²
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
7.5ns (133 MHz), 266 MT/s, CL = 2.5
• PCB height
Very Low-Profile 0.72in (18.29mm)¹
G
Y
-335
-262¹
-26A¹
-265
Notes:1. Contact Micron for product availability.
2. CL = CAS (READ) latency; registered mode
adds one clock cycle to CL.
PDF: 09005aef81c73825/Source: 09005aef81c73837
DVF18C64_128x72D_1.fm - Rev. A 8/05 EN
1
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Products and specifications discussed herein are subject to change by Micron without notice.