DDR3 SDRAM VLP UDIMM
MT18JDF51272AZ – 4GB
MT18JDF1G72AZ – 8GB
Features
• DDR3 functionality and operations supported as
defined in the component data sheet
• 240-pin, very low profile, unbuffered dual in-line
memory module (VLP UDIMM)
• Fast data transfer rates: PC3-10600, PC3-8500, or
PC3-6400
• 4GB (512 Meg x 72), 8GB (1 Gig 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
• Dual-rank
• On-board I
2
C temperature sensor with integrated
serial presence-detect (SPD) EEPROM
• 8 internal device banks
• 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 VLP UDIMM (MO-269 R/C K)
Module height: 18.75mm (0.738in)
Options Marking
• Operating temperature
– Commercial (0°C ≤ T
A
≤ +70°C) None
• Package
– 240-pin DIMM (halogen-free) Z
• Frequency/CAS latency
– 1.25ns @ CL = 11 (DDR3-1600) -1G6
– 1.5ns @ CL = 9 (DDR3-1333) -1G4
– 1.87ns @ CL = 7 (DDR3-1066) -1G1
Table 1: Key Timing Parameters
Speed
Grade
Industry
Nomenclature
Data Rate (MT/s) t
RCD
(ns)
t
RP
(ns)
t
RC
(ns)CL = 11 CL = 10 CL = 9 CL = 8 CL = 7 CL = 6 CL = 5
-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
4GB, 8GB (x72, ECC, DR) 240-Pin DDR3 VLP UDIMM
Features
PDF: 09005aef84a97472
jdf18c512_1gx72az.pdf - Rev. C 04/13 EN
1
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Products and specifications discussed herein are subject to change by Micron without notice.