DDR2 SDRAM FBDIMM
MT36HTF25672FZ – 2GB
MT36HTF51272FZ – 4GB
MT36HTF1G72FZ – 8GB
Features
•
240-pin, DDR2 fully buffered dual in-line memory
module (FBDIMM)
•
Fast data transfer rates: PC2-4200, PC2-5300, or
PC2-6400
•
2GB (256 Meg x 72), 4GB (512 Meg x 72), or 8GB
(1 Gig x 72)
•
3.2 Gb/s, 4 Gb/s, or 4.8 Gb/s link transfer rates
•
High-speed, 1.5V differential, point-to-point link
between the host controller and advanced memory
buffer (AMB)
•
Fault-tolerant; can work around a bad bit lane in
each direction
•
High-density scaling with up to eight FBDIMM
devices per channel
•
SMBus interface to AMB for configuration register
access
•
In-band and out-of-band command access
•
Deterministic protocol
–
Enables memory controller to optimize DRAM
accesses for maximum performance
–
Delivers precise control and repeatable memory
behavior
•
Automatic DDR2 SDRAM bus and channel calibra-
tion
•
Transmitter de-emphasis to reduce ISI
Figure 1: 240-Pin FBDIMM (MO-256 R/C E)
Module height: 30.35mm (1.19in)
Options Marking
•
Package
–
240-pin DIMM (halogen-free) Z
•
Frequency/CAS latency
–
2.5ns @ CL = 5 (DDR2-800) -80E
–
3.0ns @ CL = 5 (DDR2-667) -667
Features (Continued)
•
MBIST and IBIST test functions
•
Transparent mode for DRAM test support
•
V
DD
= V
DDQ
= 1.8V for DRAM
•
V
REF
= 0.9V SDRAM command and address termina-
tion
•
V
CC
= 1.5V for AMB
•
V
DDSPD
= 3–3.6V for AMB and EEPROM
•
Serial presence-detect (SPD) with EEPROM
•
Gold edge contacts
•
Dual rank
•
Supports 95°C operation with 2X refresh
Table 1: Key Timing Parameters
Speed
Grade Industry Nomenclature
Data Rate (MT/s)
t
RCD (ns)
t
RP (ns)
t
RC (ns)CL = 6 CL = 5 CL = 4 CL = 3
-80E PC2-6400 800 800 533 400 12.5 12.5 55
-667 PC2-5300
–
667 533 400 15 15 55
-53E PC2-4200
– –
533 400 15 15 55
2GB, 4GB, 8GB (x72, DR) 240-Pin DDR2 SDRAM FBDIMM
Features
PDF: 09005aef83d491e1
htf36c256_512_1gx72fz.pdf - Rev. B 10/10 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2009 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.