MT41J64M16LA-15E:B TR Micron Technology Inc, MT41J64M16LA-15E:B TR Datasheet - Page 118
![IC DDR3 SDRAM 1GBIT 96FBGA](/photos/7/23/72317/mfg557-60-fbga_sml.jpg)
MT41J64M16LA-15E:B TR
Manufacturer Part Number
MT41J64M16LA-15E:B TR
Description
IC DDR3 SDRAM 1GBIT 96FBGA
Manufacturer
Micron Technology Inc
Type
DDR3 SDRAMr
Specifications of MT41J64M16LA-15E:B TR
Format - Memory
RAM
Memory Type
DDR3 SDRAM
Memory Size
1G (64M x 16)
Speed
667MHz
Interface
Parallel
Voltage - Supply
1.425 V ~ 1.575 V
Operating Temperature
0°C ~ 95°C
Package / Case
96-FBGA
Organization
64Mx16
Density
1Gb
Address Bus
16b
Maximum Clock Rate
1.333GHz
Operating Supply Voltage (typ)
1.5V
Package Type
FBGA
Operating Temp Range
0C to 95C
Operating Supply Voltage (max)
1.575V
Operating Supply Voltage (min)
1.425V
Supply Current
355mA
Pin Count
96
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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SRT vs. ASR
DYNAMIC ODT
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_4.fm - Rev. F 11/08 EN
If the normal case temperature limit of 85°C is not exceeded, then neither SRT nor ASR is
required, and both can be disabled throughout operation. However, if the extended
temperature option of 95°C is needed, the user is required to provide a 2X refresh rate
during (manual) refresh and to enable either the SRT or the ASR to ensure self refresh is
performed at the 2X rate.
SRT forces the DRAM to switch the internal self refresh rate from 1X to 2X. Self refresh is
performed at the 2X refresh rate regardless of the case temperature.
ASR automatically switches the DRAM’s internal self refresh rate from 1X to 2X. However,
while in self refresh mode, ASR enables the refresh rate to automatically adjust between
1X to 2X over the supported temperature range. One other disadvantage with ASR is the
DRAM cannot always switch from a 1X to a 2X refresh rate at an exact case temperature
of 85°C. Although the DRAM will support data integrity when it switches from a 1X to a
2X refresh rate, it may switch at a lower temperature than 85°C.
Since only one mode is neccesary, SRT and ASR cannot be enabled at the same time.
The dynamic ODT (R
when a value is selected. This new DDR3 SDRAM feature enables the ODT termination
value to change without issuing an MRS command, essentially changing the ODT termi-
nation “on-the-fly.”
With dynamic ODT (R
to dynamic ODT (R
back to ODT (R
the R
dynamic ODT (R
ODTH8, and
Dynamic ODT is only applicable during WRITE cycles. If ODT (R
dynamic ODT (R
dent of one other. Dynamic ODT is not available during write leveling mode, regardless
of the state of ODT (R
Termination (ODT)” on page 160.
TT
_
NOM
t
value will be High-Z. Special timing parameters must be adhered to when
ADC.
TT
TT
TT
_
NOM
_
_
TT
WR
WR
TT
_
TT
TT
WR
) is enabled: ODTL
) is still permitted. R
) at the completion of the WRITE burst. If R
_
_
_
WR
NOM
WR
) when beginning a WRITE burst and subsequently switches
) feature is defined by MR2[10, 9]. Dynamic ODT is enabled
) enabled, the DRAM switches from normal ODT (R
118
). For details on dynamic ODT operation, refer to “On-Die
Micron Technology, Inc., reserves the right to change products or specifications without notice.
CNW
TT
_
, ODTL
NOM
1Gb: x4, x8, x16 DDR3 SDRAM
and R
CNW
4, ODTL
TT
_
WR
©2006 Micron Technology, Inc. All rights reserved.
can be used indepen-
TT
CNW
TT
_
NOM
_
NOM
8, ODTH4,
) is disabled,
Operations
is disabled,
TT
_
NOM
)
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