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| 型號： | NT5SV64M4AT-75B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 256Mb Synchronous DRAM |
| 中文描述： | 256Mb的同步DRAM |
| 文件頁數(shù)： | 30/65頁 |
| 文件大?。?/td> | 814K |
| 代理商： | NT5SV64M4AT-75B |
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NT5SV64M4AT(L)
NT5SV32M8AT(L)
NT5SV16M16AT(L)
256Mb Synchronous DRAM
REV 1.0
May, 2001
30
NANYA TECHNOLOGY CORP
. All rights reserved.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Clock Enable (CKE) Truth Table
Current State
CKE
Command
Action
Notes
Previous
Cycle
Current
Cycle
CS
RAS
CAS
WE
BA0,
BA1
A12 - A0
Self Refresh
H
X
X
X
X
X
X
X
INVALID
1
L
H
H
X
X
X
X
X
Exit Self Refresh with Device Deselect
2
L
H
L
H
H
H
X
X
Exit Self Refresh with No Operation
2
L
H
L
H
H
L
X
X
ILLEGAL
2
L
H
L
H
L
X
X
X
ILLEGAL
2
L
H
L
L
X
X
X
X
ILLEGAL
2
L
L
X
X
X
X
X
X
Maintain Self Refresh
Power Down
H
X
X
X
X
X
X
X
INVALID
1
L
H
H
X
X
X
X
X
Power Down mode exit, all banks idle
2
L
H
L
X
X
X
X
X
ILLEGAL
2
L
L
X
X
X
X
X
X
Maintain Power Down Mode
All Banks Idle
H
H
H
X
X
X
Refer to the Idle State section of the
Current State Truth Table
3
H
H
L
H
X
X
3
H
H
L
L
H
X
3
H
H
L
L
L
H
X
X
CBR Refresh
H
H
L
L
L
L
OP Code
Mode Register Set
4
H
L
H
X
X
X
Refer to the Idle State section of the
Current State Truth Table
3
H
L
L
H
X
X
3
H
L
L
L
H
X
3
H
L
L
L
L
H
X
X
Entry Self Refresh
4
H
L
L
L
L
L
OP Code
Mode Register Set
L
X
X
X
X
X
X
X
Power Down
4
Any State
other than
listed above
H
H
X
X
X
X
X
X
Refer to operations in the Current State
Truth Table
H
L
X
X
X
X
X
X
Begin Clock Suspend next cycle
5
L
H
X
X
X
X
X
X
Exit Clock Suspend next cycle
L
L
X
X
X
X
X
X
Maintain Clock Suspend
1. For the given Current State CKE must be low in the previous cycle.
2. When CKE has a low to high transition, the clock and other inputs are re-enabled asynchronously. The minimum setup time for CKE
(t
CES
) must be satisfied. When exiting power down mode, a NOP command (or Device Deselect Command) is required on the first rising
clock after CKE goes high (see page 26).
3. The address inputs depend on the command that is issued. See the Idle State section of the Current State Truth Table for more informa-
tion.
4. The Precharge Power Down Mode, the Self Refresh Mode, and the Mode Register Set can only be entered from the all banks idle stat e.
5. Must be a legal command as defined in the Current State Truth Table.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NT5SV64M4AT-7K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256Mb Synchronous DRAM |
| NT5SV64M4AT8B | 制造商:Nanya Technology Corporation 功能描述: |
| NT5SV64M4AT-8B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256Mb Synchronous DRAM |
| NT5SV8M16HS-6K | 制造商:Nanya Technology Corporation 功能描述:DRAM |
| NT5SV8M8DT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:64Mb Synchronous DRAM |
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