DDR3 SDRAM UDIMM
MT9JSF12872AZ – 1GB
MT9JSF25672AZ – 2GB
MT9JSF51272AZ – 4GB
Features
• DDR3 functionality and operations supported as
defined in the component data sheet
• 240-pin, unbuffered dual in-line memory module
(UDIMM)
• Fast data transfer rates: PC3-14900, PC3-12800, and
PC3-10600
• 1GB (128 Meg x 72), 2GB (256 Meg x 72), and 4GB
(512 Meg x 72)
• V
DD
= 1.5V ±0.075V
• V
DDSPD
= 3.0–3.6V
• Supports ECC error detection and correction
• Nominal and dynamic on-die termination (ODT) for
data, strobe, and mask signals
• Single rank
• On-board I
2
C temperature sensor with integrated
serial presence-detect (SPD) EEPROM
• Fixed burst chop (BC) of 4 and burst length (BL) of 8
via the mode register set (MRS)
• Selectable BC4 or BL8 on-the-fly (OTF)
• Gold edge contacts
• Halogen-free
• Fly-by topology
• Terminated control, command, and address bus
Figure 1: 240-Pin UDIMM (MO-269 R/C D1)
Module height: 30.0mm (1.181in)
Figure 2: 240-Pin UDIMM (MO-269 R/C D1)
Module Height: 30.0mm (1.181in)
Options Marking
• Operating temperature
– Commercial (0°C ≤ T
A
≤ +70°C) None
• Package
– 240-pin DIMM (halogen-free) Z
• Frequency/CAS latency
– 1.07ns @ CL = 13 (DDR3-1866) -1G9
– 1.25ns @ CL = 11 (DDR3-1600) -1G6
– 1.5ns @ CL = 9 (DDR3-1333) -1G4
Table 1: Key Timing Parameters
Speed
Grade
Industry
Nomenclature
Data Rate (MT/s)
t
RCD
(ns)
t
RP
(ns)
t
RC
(ns)
CL =
13
CL =
11
CL =
10 CL = 9 CL = 8 CL = 7 CL = 6 CL = 5
-1G9 PC3-14900 1866 1600 1333 1333 1066 1066 800 667 13.125 13.125 47.125
-1G6 PC3-12800 – 1600 1333 1333 1066 1066 800 667 13.125 13.125 48.125
-1G4 PC3-10600 – – 1333 1333 1066 1066 800 667 13.125 13.125 49.125
-1G1 PC3-8500 – – – – 1066 1066 800 667 13.125 13.125 50.625
-1G0 PC3-8500 – – – – 1066 – 800 667 15 15 52.5
-80B PC3-6400 – – – – – – 800 667 15 15 52.5
1GB, 2GB, 4GB (x72, ECC, SR) 240-Pin DDR3 UDIMM
Features
PDF: 09005aef8360c8e6
jsf9c128_256_512x72az.pdf - Rev. J 2/16 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2008 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.