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: 19/66页
文件大小: 1921K
代理商: MT46V4M32
19
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
Figure 10
Random READ Accesses
CK
CK#
COMMAND
READ
READ
READ
NOP
NOP
ADDRESS
Bank,
Col
n
Bank,
Col
x
Bank,
Col
b
Bank,
Col
x
Bank,
Col
b
READ
Bank,
Col
g
COMMAND
ADDRESS
CL = 2
CK
CK#
DQ
DQS
CL = 3
DQ
DQS
DO
n
DO
x’
DO
g
DO
n’
DO
b
DO
x
DO
b’
DO
n
DO
x’
DO
n’
DO
b
DO
x
DO
b’
T0
T1
T2
T3
T2n
T3n
T4
T5
T4n
T5n
NOTE
: 1. DO
n
(or
x
or
b
or
g
) = data-out from column
n
(or column x or column
b
or column
g
).
2. Burst length = 2 or 4 or 8 (if 4 or 8, the following burst interrupts the previous).
3.
n
’ or
x
’ or
b
’ or
g
’ indicates the next data-out following DO
n
or DO
x
or DO
b
or DO
g
, respectively
.
4. READs are to an active row in any bank
.
5. Shown with nominal
t
AC,
t
DQSCK, and
t
DQSQ.
READ
READ
READ
NOP
NOP
Bank,
Col
n
READ
Bank,
Col
g
T0
T1
T2
T3
T3n
T4
T5
T4n
T5n
DON T CARE
TRANSITIONING DATA
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