MT47H32M16HR-25E AIT:G Micron, MT47H32M16HR-25E AIT:G Datasheet - Page 66

• Manufacturer Part Number: MT47H32M16HR-25E AIT:G
• Description: DRAM Chip DDR2 SDRAM 512M-Bit 32Mx16 1.8V 84-Pin FBGA
• Manufacturer: Micron

Commands
Truth Tables
Table 36: Truth Table – DDR2 Commands
Notes: 1–3 apply to the entire table
PDF: 09005aef8440dbbc
512mbddr2_ait_aat.pdf – Rev. C 7/11 EN
Function
LOAD MODE
REFRESH
SELF REFRESH entry
SELF REFRESH exit
Single bank
PRECHARGE
All banks PRECHARGE
Bank ACTIVATE
WRITE
WRITE with auto
precharge
READ
READ with auto
precharge
NO OPERATION
Device DESELECT
Power-down entry
Power-down exit
Notes:
Previous
Cycle
The following tables provide a quick reference of available DDR2 SDRAM commands,
including CKE power-down modes and bank-to-bank commands.
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
1. All DDR2 SDRAM commands are defined by states of CS#, RAS#, CAS#, WE#, and CKE at
2. The state of ODT does not affect the states described in this table. The ODT function is
3. “X” means “H or L” (but a defined logic level) for valid I
4. BA2 is only applicable for densities 1Gb.
5. An n is the most significant address bit for a given density and configuration. Some larg-
CKE
the rising edge of the clock.
not available during self refresh. See ODT Timing (page 123) for details.
er address bits may be “Don’t Care” during column addressing, depending on density
and configuration.
Current
Cycle
Micron Confidential and Proprietary
H
H
H
H
H
H
H
H
H
H
X
X
H
L
L
CS#
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS# CAS#
H
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
L
66
512Mb: x8, x16 Automotive DDR2 SDRAM
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
L
L
Micron Technology, Inc. reserves the right to change products or specifications without notice.
WE#
H
H
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
BA2–
BA0
BA
BA
BA
BA
BA
BA
BA
X
X
X
X
X
X
X
X
An–A11
Column
Column
Column
Column
address
address
address
address
DD
X
X
X
X
X
X
X
X
X
measurements.
Row address
‹ 2010 Micron Technology, Inc. All rights reserved.
OP code
A10
X
X
X
H
H
H
X
X
X
X
L
L
L
Column
Column
Column
Column
address
address
address
address
Commands
A9–A0 Notes
X
X
X
X
X
X
X
X
X
4, 5, 6,
4, 5, 6,
4, 5, 6,
4, 5, 6,
4, 6
4, 7
6
4
8
8
8
8
9
9