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参数资料
| 型号： | MT46V4M32 |
| 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： | 20/66页 |
| 文件大小： | 1921K |
| 代理商： | MT46V4M32 |
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20
128Mb: x32 DDR SDRAM
4M32DDR_B.p65 – Rev. B, Pub. 7/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
128Mb: x32
DDR SDRAM
ADVANCE
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 architec-
ture).
Data from any READ burst must be completed or
truncated before a subsequent WRITE command can
be issued. If truncation is necessary, the BURST TER-
MINATE 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 hid-
den during the access of the last data elements.
READs (continued)
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MT48LC32M4A1 | ECONOLINE: RSZ/P - 1kVDC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MT46V4M32LG | 制造商:MICRON 制造商全称:Micron Technology 功能描述:DOUBLE DATA RATE DDR SDRAM |
| MT46V64M16 | 制造商:MICRON 制造商全称:Micron Technology 功能描述:DOUBLE DATA RATE (DDR) SDRAM |
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