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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： | 39/66页 |
| 文件大小： | 1921K |
| 代理商： | MT46V4M32 |
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39
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
TRUTH TABLE 4 – CURRENT STATE BANK
n
– COMMAND TO BANK
m
(Notes: 1-6; notes appear below and on next page)
CURRENT STATE CS# RAS# CAS# WE#
Any
H
L
Idle
X
Row
L
Activating,
L
Active, or
L
Precharging
L
Read
L
(Auto-
L
Precharge
L
Disabled)
L
Write
L
(Auto-
L
Precharge
L
Disabled)
L
Read
L
(With Auto-
L
Precharge)
L
L
Write
L
(With Auto-
L
Precharge)
L
L
COMMAND/ACTION
DESELECT (NOP/continue previous operation)
NO OPERATION (NOP/continue previous operation)
Any Command Otherwise Allowed to Bank m
ACTIVE (select and activate row)
READ (select column and start READ burst)
WRITE (select column and start WRITE burst)
PRECHARGE
ACTIVE (select and activate row)
READ (select column and start new READ burst)
WRITE (select column and start WRITE burst)
PRECHARGE
ACTIVE (select and activate row)
READ (select column and start READ burst)
WRITE (select column and start new WRITE burst)
PRECHARGE
ACTIVE (select and activate row)
READ (select column and start new READ burst)
WRITE (select column and start WRITE burst)
PRECHARGE
ACTIVE (select and activate row)
READ (select column and start READ burst)
WRITE (select column and start new WRITE burst)
PRECHARGE
NOTES
X
H
X
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
X
H
X
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
X
H
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
7
7
7
7, 9
7, 8
7
7
7, 9
7
7
NOTE:
1. This table applies when CKE
n-1
was HIGH and CKE
n
is HIGH (see Truth Table 2) and after
t
XSNR has been
met (if the previous state was self refresh).
2. This table describes alternate bank operation, except where noted (i.e., the current state is for bank
n
and
the commands shown are those allowed to be issued to bank
m,
assuming that bank m is in such a state
that the given command is allowable). Exceptions are covered in the notes below.
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 |
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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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