参数资料
型号: MT46V32M4-1
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: 31/68页
文件大小: 2547K
代理商: MT46V32M4-1
31
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
Figure 19
WRITE to READ
Uninterrupting
t
DQSS (NOM)
CK
CK#
COMMAND
WRITE
NOP
NOP
READ
NOP
NOP
ADDRESS
Bank
a
,
Col
b
Bank
a
,
Col
n
NOP
T0
T1
T2
T3
T2n
T4
T5
NOTE
: 1. DI
b
= data-in for column
b
.
2. Three subsequent elements of data-in are applied in the programmed order following DI
b
.
3. An uninterrupted burst of 4 is shown.
4.tWTR is referenced from the first positive CK edge after the last data-in pair.
5. The READ and WRITE commands are to same device. However, the READ and WRITE commands may be
to different devices, in which case tWTR is not required and the READ command could be applied earlier.
6. A10 is LOW with the WRITE command (auto precharge is disabled).
T1n
T6
T6n
t
WTR
CL = 2
DQ
DQS
DM
DI
b
DI
n
t
DQSS
t
DQSS (MIN)
CL = 2
DQ
DQS
DM
DI
b
DI
n
t
DQSS
t
DQSS (MAX)
CL = 2
DQ
DQS
DM
DI
b
DI
n
t
DQSS
DON
T CARE
TRANSITIONING DATA
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