MT46H8M32LFB5-6IT:H Micron Technology Inc, MT46H8M32LFB5-6IT:H Datasheet - Page 34

• Manufacturer Part Number: MT46H8M32LFB5-6IT:H
• Description: MICMT46H8M32LFB5-6_IT:H MDDDR
• Manufacturer: Micron Technology Inc

DESELECT
NO OPERATION
LOAD MODE REGISTER
ACTIVE
PDF: 09005aef834bf85b
256mb_mobile_ddr_sdram_t36n.pdf - Rev. I 09/10 EN
Notes:
Table 14: DM Operation Truth Table
The DESELECT function (CS# HIGH) prevents new commands from being executed by
the device. Operations already in progress are not affected.
The NO OPERATION (NOP) command is used to instruct the selected device to perform
a NOP. This prevents unwanted commands from being registered during idle or wait
states. Operations already in progress are not affected.
The mode registers are loaded via inputs A[0:n]. See mode register descriptions in
Standard Mode Register and Extended Mode Register. The LOAD MODE REGISTER
command can only be issued when all banks are idle, and a subsequent executable
command cannot be issued until
The ACTIVE command is used to activate a row in a particular bank for a subsequent
access. The values on the BA0 and BA1 inputs select the bank, and the address provided
on inputs A[0:n] selects the row. This row remains active for accesses until a PRE-
CHARGE command is issued to that bank. A PRECHARGE command must be issued be-
fore opening a different row in the same bank.
Name (Function)
Write enable
Write inhibit
1. Used to mask write data; provided coincident with the corresponding data.
2. All states and sequences not shown are reserved and/or illegal.
34
t
MRD is met.
256Mb: x16, x32 Mobile LPDDR SDRAM
DM
H
L
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Valid
DQ
X
© 2008 Micron Technology, Inc. All rights reserved.
Commands
Notes
1, 2
1, 2