1GB, 2GB: (x72, ECC, DR) 168-Pin SDRAM RDIMM
Fe a t u re s
Syn ch ro n o u s DRAM Mo d u le
MT36LSDT12872 – 1GB
MT36LSDT25672 – 2GB
For the latest data sheet, refer to Micron’s Web site: www.micron.com/products/modules
Fig u re 1:
168-Pin DIMM (MO-161)
Fe a t u re s
• 168-pin, dual in-line memory module (DIMM)
• PC100- and PC133-compliant
Standard 1.70in. (43.18mm)
• Registered inputs with one-clock delay
• Phase-lock loop (PLL) clock driver to reduce loading
• Utilizes 125 MHz and 133 MHz SDRAM
components
• Supports ECC error detection and correction
• 1GB (128 Meg x 72) and 2GB (256 Meg x 72)
• Single +3.3V power supply
Low-Profile 1.20in. (30.48mm)
• Fully synchronous; all signals registered on positive
edge of PLL clock
• Internal pipelined operation; column address can
be changed every clock cycle
• Internal SDRAM banks for hiding row access/
precharge
• Programmable burst lengths: 1, 2, 4, 8, or full page
• Auto precharge, includes concurrent auto precharge
• Auto refresh mode
• Self refresh mode: 64ms, 4,096-cycle refresh
• LVTTL-compatible inputs and outputs
• Serial presence-detect (SPD)
Op t io n s
• Package
168-pin DIMM (standard)
168-pin DIMM (lead-free)
• Frequency/ CAS Latency2
133 MHz/ CL = 2
Ma rkin g
G
1
Y
-13E
-133
• Gold edge contacts
133 MHz/ CL = 3
• PCB
Ta b le 1:
Tim in g Pa ra m e t e rs
Standard 1.70in (43.18mm)
See note on page 2
CL = CAS (READ) latency
Low-Profile 1.20in. (30.48mm) See note on page 2
Acce ss Tim e
Mo d u le
Ma rkin g
Se t u p
Ho ld
Tim e
Notes: 1. Contact Micron for product availability.
2. Registered mode adds one clock cycle to CL.
Clo ck
CL = 2 CL = 3 Tim e
-13E
-133
133 MHz
133 MHz
5.4ns
–
–
1.5
1.5
0.8
0.8
5.4ns
Ta b le 2:
Ad d re ss Ta b le
Pa ra m e t e r
1GB
2GB
8K
8K
Refresh Count
Device Banks
4 (BA0, BA1)
4 (BA0, BA1)
256Mb (64 Meg x 4)
8K (A0–A12)
512Mb (128 Meg x 4)
8K (A0–A12)
Device Configuration
Row Addressing
2K (A0–A9, A11)
4K (A0–A9, A11, A12)
2 (S0#, S2#; S1#, S3#)
Column Addressing
Module Ranks
2 (S0#, S2#; S1#, S3#)
PDF: 09005aef80b1835d/Source: 09005aef80b18348
SD36C128_256x72G.fm - Rev. E 6/05 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2002 Micron Technology, Inc. All rights reserved.
1
Products and specifications discussed herein are subject to change by Micron without notice.