參數(shù)資料
型號(hào): MT47H64M16HR-3IT
元件分類: DRAM
英文描述: 64M X 16 DDR DRAM, 0.4 ns, PBGA84
封裝: 8 X 12.50 MM, ROHS COMPLIANT, FBGA-84
文件頁數(shù): 108/129頁
文件大?。?/td> 9252K
代理商: MT47H64M16HR-3IT
State Diagram
Figure 2: Simplified State Diagram
Automatic Sequence
Command Sequence
PRE
Initialization
sequence
Self
refreshing
CKE_L
Refreshing
Precharge
power-
down
Setting
MRS
EMRS
SR
CKE_H
REFRESH
Idle
all banks
precharged
CKE_L
(E)MRS
OCD
default
Activating
ACT
Bank
active
Reading
READ
Writing
WRITE
Active
power-
down
CKE_L
CKE_H
CKE_L
Writing
with
auto
precharge
Reading
with
auto
precharge
READ A
WRITE A
PRE, PRE_A
WRITE
A
WRITE
A
READ
A
PRE
,
PRE_A
READ
A
READ
WRITE
Precharging
CKE_H
WRITE
READ
PRE,
PRE_A
ACT = ACTIVATE
CKE_H = CKE HIGH, exit power-down or self refresh
CKE_L = CKE LOW, enter power-down
(E)MRS = (Extended) mode register set
PRE = PRECHARGE
PRE_A = PRECHARGE ALL
READ = READ
READ A = READ with auto precharge
REFRESH = REFRESH
SR = SELF REFRESH
WRITE = WRITE
WRITE A = WRITE with auto precharge
Note: 1. This diagram provides the basic command flow. It is not comprehensive and does not
identify all timing requirements or possible command restrictions such as multibank in-
teraction, power down, entry/exit, etc.
1Gb: x4, x8, x16 1.55V DDR2 SDRAM
State Diagram
PDF: 09005aef82b91d01
1GbDDR2_1_55V.PDF Rev. A 5/09 EN
8
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT47H64M16HR-3L 制造商:MICRON 制造商全稱:Micron Technology 功能描述:DDR2 SDRAM