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| 型号： | MT46V32M4TG-8L |
| 厂商： | Micron Technology, Inc. |
| 英文描述： | DOUBLE DATA RATE DDR SDRAM |
| 中文描述： | 双倍数据速率的DDR SDRAM内存 |
| 文件页数： | 22/68页 |
| 文件大小： | 2547K |
| 代理商： | MT46V32M4TG-8L |
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22
128Mb: x4, x8, x16 DDR SDRAM
128Mx4x8x16DDR_C.p65
–
Rev. C; Pub. 4/01
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2001, Micron Technology, Inc.
128Mb: x4, x8, x16
DDR SDRAM
PRELIMINARY
READs (continued)
Data from any READ burst may be truncated with
a BURST TERMINATE command, as shown in Figure
11. The BURST TERMINATE latency is equal to the
READ (CAS) latency, i.e., the BURST TERMINATE
command should be issued
x
cycles after the READ
command, where
x
equals the number of desired data
element pairs (pairs are required by the 2
n
-prefetch
architecture).
Data from any READ burst must be completed or
truncated before a subsequent WRITE command can
be issued. If truncation is necessary, the BURST TERMI-
NATE command must be used, as shown in Figure 12.
The
t
DQSS (MIN) case is shown; the
t
DQSS (MAX) case
has a longer bus idle time. (
t
DQSS [MIN] and
t
DQSS
[MAX] are defined in the section on WRITEs.)
A READ burst may be followed by, or truncated
with, a PRECHARGE command to the same bank
provided that auto precharge was not activated. The
PRECHARGE command should be issued
x
cycles after
the READ command, where
x
equals the number of
desired data element pairs (pairs are required by the 2
n
-
prefetch architecture). This is shown in Figure 13.
Following the PRECHARGE command, a subsequent
command to the same bank cannot be issued until
t
RP
is met. Note that part of the row precharge time is
hidden during the access of the last data elements.
相关PDF资料 |
PDF描述 |
|---|---|
| MT46V4M32 | DOUBLE DATA RATE DDR SDRAM |
| MT46V4M32LG | I.MX31 LITE KIT |
| MT46V64M4 | 16 Meg x 4 x 4 banks DDR SDRAM(16M x 4 x 4组,双数据速率同步动态RAM) |
| MT46V64M8 | 16 Meg x 8 x 4 banks DDR SDRAM(16M x 8 x 4组,双数据速率同步动态RAM) |
| MT48LC16M8A1TG | SYNCHRONOUS DRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MT46V32M8 | 制造商:MICRON 制造商全称:Micron Technology 功能描述:DOUBLE DATA RATE DDR SDRAM |
| MT46V32M82ZZ5-75 ES | 制造商:Micron Technology Inc 功能描述:32MX8 SDRAM DDR PLASTIC PBF FBGA 2.5V - Trays |
| MT46V32M82ZZ5-75EZ | 制造商:Micron Technology Inc 功能描述:32MX8 DDR SDRAM PLASTIC 2.5V - Trays |
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