1GB (x72, SR) 240-Pin DDR2 SDRAM FBDIMM
Features
DDR2 SDRAM FBDIMM
MT9HTF12872FZ – 1GB
• Transparent mode for DRAM test support
• VDD = VDDQ = 1.8V for DRAM
Features
• 240-pin, DDR2 fully-buffered dual in-line memory
module (FBDIMM)
• Fast data transfer rates: PC2-5300 or PC2-6400
• 1GB (128 Meg x 72)
• VREF = 0.9V SDRAM command and address termina-
tion
• VCC = 1.5V for AMB
• VDDSPD = 3–3.6V for AMB and EEPROM
• Serial presence-detect (SPD) with EEPROM
• Gold edge contacts
• 4.0 Gb/s and 4.8 Gb/s link transfer rates
• High-speed, 1.5V differential, point-to-point link be-
tween the host controller and advanced memory
buffer (AMB)
• Single rank
• Supports 95°C operation with 2X refresh
• Halogen-free PCB
• Fault-tolerant; can work around a bad bit lane in
each direction
• High-density scaling with up to eight FBDIMMs per
channel
Figure 1: 240-Pin FBDIMM (MO-256 R/C A)
Module height: 30.35mm (1.19in)
• SMBus interface to AMB for configuration register
access
• In-band and out-of-band command access
• Deterministic protocol
– Enables memory controller to optimize DRAM ac-
cesses for maximum performance
Options
Marking
– Delivers precise control and repeatable memory
behavior
• Package
– 240-pin DIMM (Halogen-free)
• Frequency/CAS latency
– 2.5ns @ CL = 5 (DDR2-800)
– 3.0ns @ CL = 5 (DDR2-667)
Z
• Automatic DDR2 SDRAM bus and channel calibra-
tion
-80E
-667
• Transmitter de-emphasis to reduce ISI
• MBIST and IBIST test functions
Table 1: Key Timing Parameters
Speed
Data Rate (MT/s)
tRCD
(ns)
Grade
Industry Nomenclature
CL = 6
800
–
CL = 5
800
CL = 4
533
CL = 3
400
tRP (ns) tRC (ns)
-80E
PC2-6400
12.5
15
12.5
15
55
55
-667
PC2-5300
667
533
400
PDF: 09005aef83de8266
htf9c128x72fz.pdf - Rev. B 4/14 EN
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1
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Products and specifications discussed herein are subject to change by Micron without notice.