- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄296642 > MT47H64M16HR-3IT 64M X 16 DDR DRAM, 0.4 ns, PBGA84 PDF資料下載
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)： | 96/129頁 |
| 文件大?。?/td> | 9252K |
| 代理商： | MT47H64M16HR-3IT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁當(dāng)前第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁
READ with auto
precharge enabled/
WRITE with auto
precharge enabled:
The READ with auto precharge enabled or WRITE with auto pre-
charge enabled states can each be broken into two parts: the
access period and the precharge period. For READ with auto pre-
charge, the precharge period is defined as if the same burst was
executed with auto precharge disabled and then followed with
the earliest possible PRECHARGE command that still accesses all
of the data in the burst. For WRITE with auto precharge, the pre-
charge period begins when tWR ends, with tWR measured as if
auto precharge was disabled. The access period starts with regis-
tration of the command and ends where the precharge period
(or tRP) begins. This device supports concurrent auto precharge
such that when a READ with auto precharge is enabled or a
WRITE with auto precharge is enabled, any command to other
banks is allowed, as long as that command does not interrupt
the read or write data transfer already in process. In either case,
all other related limitations apply (contention between read da-
ta and write data must be avoided).
The minimum delay from a READ or WRITE command with auto precharge enabled to
a command to a different bank is summarized in Table 39 (page 69).
4. REFRESH and LOAD MODE commands may only be issued when all banks are idle.
5. Not used.
6. All states and sequences not shown are illegal or reserved.
7. READs or WRITEs listed in the Command/Action column include READs or WRITEs with
auto precharge enabled and READs or WRITEs with auto precharge disabled.
8. A WRITE command may be applied after the completion of the READ burst.
9. Requires appropriate DM.
10. The number of clock cycles required to meet tWTR is either two or tWTR/tCK, whichever
is greater.
Table 39: Minimum Delay with Auto Precharge Enabled
From Command (Bank n)
To Command (Bank m)
Minimum Delay
(with Concurrent Auto Precharge)
Units
WRITE with auto precharge
READ or READ with auto precharge
(CL - 1) + (BL/2) + tWTR
tCK
WRITE or WRITE with auto precharge
(BL/2)
tCK
PRECHARGE or ACTIVATE
1
tCK
READ with auto precharge
READ or READ with auto precharge
(BL/2)
tCK
WRITE or WRITE with auto precharge
(BL/2) + 2
tCK
PRECHARGE or ACTIVATE
1
tCK
DESELECT
The DESELECT function (CS# HIGH) prevents new commands from being executed by
the DDR2 SDRAM. The DDR2 SDRAM is effectively deselected. Operations already in
progress are not affected. DESELECT is also referred to as COMMAND INHIBIT.
1Gb: x4, x8, x16 1.55V DDR2 SDRAM
Commands
PDF: 09005aef82b91d01
1GbDDR2_1_55V.PDF Rev. A 5/09 EN
69
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT48H8M16LFB4-8IT:JTR | 8M X 16 SYNCHRONOUS DRAM, 6 ns, PBGA54 |
| MT48LC4M32TG-10 | 4M X 32 SYNCHRONOUS DRAM, 7 ns, PDSO54 |
| MT48V8M16LFB4-8XT | 8M X 16 SYNCHRONOUS DRAM, 7 ns, PBGA54 |
| MT48LC4M32LFB5-10ES:G | 4M X 32 SYNCHRONOUS DRAM, 7 ns, PBGA90 |
| MT48V4M32TG-8XT | 4M X 32 SYNCHRONOUS DRAM, 7 ns, PDSO54 |
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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。