參數(shù)資料
型號(hào): MT48H8M16LFB4-8IT:JTR
元件分類: DRAM
英文描述: 8M X 16 SYNCHRONOUS DRAM, 6 ns, PBGA54
封裝: 8 X 8 MM, LEAD FREE, VFBGA-54
文件頁數(shù): 11/61頁
文件大?。?/td> 2469K
PDF: 09005aef8237e877/Source: 09005aef8237e8d8
Micron Technology, Inc., reserves the right to change products or specifications without notice.
128Mb_x16 Mobile SDRAM_Y25M_2.fm - Rev. A 6/06 EN
19
2006 Micron Technology, Inc. All rights reserved.
128Mb: x16 Mobile SDRAM
READs
Preliminary
A subsequent ACTIVE command to another bank can be issued while the first bank is
being accessed, which results in a reduction of total row-access overhead. The minimum
time interval between successive ACTIVE commands to different banks is defined by
tRRD.
Figure 7:
Activating a Specific Row in a Specific Bank Register
Figure 8:
Meeting tRCD (MIN) When 2 < tRCD (MIN)/tCK< 3
READs
READ bursts are initiated with a READ command, as shown in Figure 9 on page 20.
The starting column and bank addresses are provided with the READ command, and
auto precharge is either enabled or disabled for that burst access. If auto precharge is
enabled, the row being accessed is precharged at the completion of the burst. For the
generic READ commands used in the following illustrations, auto precharge is disabled.
During READ bursts, the valid data-out element from the starting column address will
be available following the CAS latency after the READ command. Each subsequent data-
out element will be valid by the next positive clock edge. Figure 5, "CAS Latency," on
page 12, shows general timing for each possible CAS latency setting.
Upon completion of a burst, assuming no other commands have been initiated, the DQ
will go High-Z.
CS#
WE#
CAS#
RAS#
CKE
CLK
A0–A10, A11
ROW
ADDRESS
HIGH
BA0, BA1
BANK
ADDRESS
DON’T CARE
CLK
T2
T1
T3
T0
t
COMMAND
NOP
ACTIVE
READ or
WRITE
T4
NOP
RCD
DON’T CARE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT48H8M16LFF3-7E 制造商:Micron Technology Inc 功能描述:
MT48H8M16LFF4-10 功能描述:IC SDRAM 128MBIT 100MHZ 54VFBGA RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類型:SDRAM 存儲(chǔ)容量:256M(8Mx32) 速度:143MHz 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:托盤 其它名稱:Q2841869
MT48H8M16LFF4-10 IT 功能描述:IC SDRAM 128MBIT 100MHZ 54VFBGA RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類型:SDRAM 存儲(chǔ)容量:256M(8Mx32) 速度:143MHz 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:托盤 其它名稱:Q2841869
MT48H8M16LFF4-8 功能描述:IC SDRAM 128MBIT 125MHZ 54VFBGA RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類型:SDRAM 存儲(chǔ)容量:256M(8Mx32) 速度:143MHz 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:托盤 其它名稱:Q2841869
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