MT41J64M16JT-15E AIT:G Micron, MT41J64M16JT-15E AIT:G Datasheet - Page 170
MT41J64M16JT-15E AIT:G
Manufacturer Part Number
MT41J64M16JT-15E AIT:G
Description
DRAM Chip DDR3 SDRAM 1G-Bit 64Mx16 1.5V 96-Pin FBGA
Manufacturer
Micron
Datasheet
1.MT41J64M16JT-15EAITG.pdf
(200 pages)
- Current page: 170 of 200
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Table 76: Power-Down Modes
PDF: 09005aef84491df3
1Gb_AIT_AAT_DDR3_SDRAM.pdf – Rev. C 8/11 EN
DRAM State
Active (any bank open)
Precharged
(all banks precharged)
“Don’t Care”
MR1[12]
exit mode precharge power-down. A summary of the two power-down modes is listed in
Table 76 (page 170).
While in either power-down state, CKE is held LOW, RESET# is held HIGH, and a stable
clock signal must be maintained. ODT must be in a valid state but all other input signals
are “Don’t Care.” If RESET# goes LOW during power-down, the DRAM will switch out of
power-down mode and go into the reset state. After CKE is registered LOW, CKE must
remain LOW until
down duration is
The power-down states are synchronously exited when CKE is registered HIGH (with a
required NOP or DES command). CKE must be maintained HIGH until
satisfied. A valid, executable command may be applied after power-down exit latency,
t
low.
For specific CKE-intensive operations, such as repeating a power-down-exit-to-refresh-
to-power-down-entry sequence, the number of clock cycles between power-down exit
and power-down entry may not be sufficient to keep the DLL properly updated. In addi-
tion to meeting
and power-down entry, two other conditions must be met. First,
before issuing the REFRESH command. Second,
next power-down may be entered. An example is shown in Figure 102 (page 176).
XP , and
1
0
t
XPDLL have been satisfied. A summary of the power-down modes is listed be-
DLL State
Off
On
On
t
PD when the REFRESH command is used between power-down exit
t
PD (MAX) (9 ×
t
PD (MIN) has been satisfied. The maximum time allowed for power-
Down Exit
Power-
Slow
Fast
Fast
170
t
REFI).
1Gb: x8, x16 Automotive DDR3 SDRAM
t
t
t
locked (READ, RDAP, or ODT on);
t
XP to any other valid command
XP to any other valid command
XPDLL to commands that require the DLL to be
XP to any other valid command
Micron Technology, Inc. reserves the right to change products or specifications without notice.
t
XPDLL must be satisfied before the
Relevant Parameters
Power-Down Mode
2010 Micron Technology, Inc. All rights reserved.
t
XP must be satisfied
t
CKE has been
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