MT47H32M16HR-25E AIT:G Micron, MT47H32M16HR-25E AIT:G Datasheet - Page 112
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MT47H32M16HR-25E AIT:G
Manufacturer Part Number
MT47H32M16HR-25E AIT:G
Description
DRAM Chip DDR2 SDRAM 512M-Bit 32Mx16 1.8V 84-Pin FBGA
Manufacturer
Micron
Datasheet
1.MT47H64M8CF-25E_ITG.pdf
(129 pages)
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Figure 66: Self Refresh
PDF: 09005aef8440dbbc
512mbddr2_ait_aat.pdf – Rev. C 7/11 EN
DQS#, DQS
Command
Address
ODT 6
CKE 1
CK#
CK 1
DM
DQ
t AOFD/ t AOFPD 6
NOP
T0
t CH
t RP 8
Notes:
Enter self refresh
mode (synchronous)
t CL
REF
10. Upon exiting SELF REFRESH, ODT must remain LOW until
T1
1. Clock must be stable and meeting
2. Self refresh exit is asynchronous; however,
3. CKE must stay HIGH until
4. NOP or DESELECT commands are required prior to exiting self refresh until state Tc0,
5.
6. ODT must be disabled and R
7.
8. Device must be in the all banks idle state prior to entering self refresh mode.
9. After self refresh has been entered,
refresh mode and at least 1 ×
ing clock edge where CKE HIGH satisfies
may go back LOW after
which allows any nonREAD command.
t
tering self refresh at state T1.
t
Td0.
fresh.
XSNR is required before any nonREAD command can be applied.
XSRD (200 cycles of CK) is required before a READ command can be applied at state
t CK 1
Micron Confidential and Proprietary
T2
t CKE (MIN) 9
Ta0
t
t CK 1
XSNR is satisfied.
112
t
Exit self refresh
mode (asynchronous)
XSRD is met; however, if self refresh is being re-entered, CKE
512Mb: x8, x16 Automotive DDR2 SDRAM
TT
t
Ta1
CK prior to exiting self refresh mode.
off (
t
t
CK specifications at least 1 ×
AOFD and
t
Micron Technology, Inc. reserves the right to change products or specifications without notice.
CKE (MIN) must be satisfied prior to exiting self re-
t ISXR 2
NOP 4
t
ISXR.
Ta2
t
XSNR and
t CKE 3
t
AOFPD have been satisfied) prior to en-
t XSNR 2, 5, 10
NOP 4
Tb0
t
XSRD timing starts at the first ris-
Indicates a break in
time scale
t XSRD 2, 7
t
XSRD is satisfied.
2010 Micron Technology, Inc. All rights reserved.
Valid 5
Valid
t
CK after entering self
Tc0
SELF REFRESH
Don’t Care
Valid 7
Valid 5
Td0
W ,+
W ,+
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