mt46h32m16lf Micron Semiconductor Products, mt46h32m16lf Datasheet - Page 38
mt46h32m16lf
Manufacturer Part Number
mt46h32m16lf
Description
512mb X16, X32 Mobile Ddr Sdram
Manufacturer
Micron Semiconductor Products
Datasheet
1.MT46H32M16LF.pdf
(84 pages)
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Figure 6:
PDF: 09005aef82ce3074/Source: 09005aef82ce20c9
ddr_mobile_sdram_cmd_op_timing_dia_fr3.08__3.fm - Rev. D 05/08 EN
ACT = ACTIVE
AREF = AUTO REFRESH
BST = BURST TERMINATE
CKEH = Exit power-down
CKEL = Enter power-down
DPD = Enter deep power-down
Mobile DRAM Simplified State Diagram
applied
Power
WRITE
LMR
PRE
PREALL
Power
PRE
LMR
EMR
WRITE A
on
power-
WRITE
WRITE
Active
down
w/AP
DPDX = Exit deep power-down
EMR = LOAD EXTENDED MODE REGISTER
LMR = LOAD MODE REGISTER
PRE = PRECHARGE
PREALL = PRECHARGE all banks
READ = READ w/o auto precharge
DPDX
WRITE
LMR
CKEL
power-
down
Deep
WRITE A
WRITE A
CKEH
PRE
DPD
precharged
Precharge
all banks
active
38
ACT
Row
Idle
PRE
SREF
READ A
WRITE
READ
CKEH
refresh
READ A
PRE
Self
SREFX
Micron Technology, Inc., reserves the right to change products or specifications without notice.
SRR
CKEL
READ
Precharge
AREF
power-
down
terminate
BST
READ
READ
Burst
w/AP
SRR
READ A
READ A = READ w/ auto precharge
SREF = Enter self refresh
SREFX = Exit self refresh
SRR = STATUS REGISTER READ
WRITE = WRITE w/o auto precharge
WRITE A = WRITE w/ auto precharge
refresh
Automatic sequence
Command sequence
Auto
READ
READ
Mobile DDR SDRAM
©2007 Micron Technology, Inc. All rights reserved
READ
Operations