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參數(shù)資料
| 型號： | EDD2516AETA |
| 廠商： | Elpida Memory, Inc. |
| 英文描述： | 256M bits DDR SDRAM |
| 中文描述： | 256M比特DDR內(nèi)存 |
| 文件頁數(shù)： | 21/52頁 |
| 文件大?。?/td> | 492K |
| 代理商： | EDD2516AETA |
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EDD2508AETA, EDD2516AETA
Data Sheet E0859E50 (Ver. 5.0)
21
Command Truth Table for CKE
Current State
CKE
n – 1 n
/CS /RAS /CAS /WE Address
Operation
Note
Self-refresh
H
×
×
×
×
×
×
INVALID, CK (n-1) would exit self-refresh
L
H
H
×
×
×
×
Self-refresh recovery
L
H
L
H
H
×
×
Self-refresh recovery
L
H
L
H
L
×
×
ILLEGAL
L
H
L
L
×
×
×
ILLEGAL
L
L
×
×
×
×
×
Maintain self-refresh
Self-refresh recovery
H
H
H
×
×
×
×
Idle after tRC
H
H
L
H
H
×
×
Idle after tRC
H
H
L
H
L
×
×
ILLEGAL
H
H
L
L
×
×
×
ILLEGAL
H
L
H
×
×
×
×
ILLEGAL
H
L
L
H
H
×
×
ILLEGAL
H
L
L
H
L
×
×
ILLEGAL
H
L
L
L
×
×
×
ILLEGAL
Power down
H
×
×
×
×
×
INVALID, CK (n – 1) would exit power down
L
H
H
×
×
×
×
EXIT power down
→
Idle
L
H
L
H
H
H
×
L
L
×
×
×
×
×
Maintain power down mode
All banks idle
H
H
H
×
×
×
Refer to operations in Function Truth Table
H
H
L
H
×
×
Refer to operations in Function Truth Table
H
H
L
L
H
×
Refer to operations in Function Truth Table
H
H
L
L
L
H
×
CBR (auto) refresh
H
H
L
L
L
L
OPCODE Refer to operations in Function Truth Table
H
L
H
×
×
×
Refer to operations in Function Truth Table
H
L
L
H
×
×
Refer to operations in Function Truth Table
H
L
L
L
H
×
Refer to operations in Function Truth Table
H
L
L
L
L
H
×
Self-refresh
1
H
L
L
L
L
L
OPCODE Refer to operations in Function Truth Table
L
×
×
×
×
×
×
Power down
1
Row active
H
×
×
×
×
×
×
Refer to operations in Function Truth Table
Remark: H: VIH. L: VIL.
×
: VIH or VIL
Note: 1. Self-refresh can be entered only from the all banks idle state. Power down can be entered only from all
banks idle or row active state.
L
×
×
×
×
×
×
Power down
1
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PDF描述 |
|---|---|
| EDD2516AETA-5B-E | 256M bits DDR SDRAM |
| EDD2516AETA-5C-E | 256M bits DDR SDRAM |
| EDD2516AETA-6B-E | 256M bits DDR SDRAM |
| EDD2516AETA-7B-E | 256M bits DDR SDRAM |
| EDD2516AKTA-5-E | 256M bits DDR SDRAM (16M words x16 bits, DDR400) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EDD2516AETA-5B-E | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM |
| EDD2516AETA-5C-E | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM |
| EDD2516AETA-6B-E | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM |
| EDD2516AETA-7A-E | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM |
| EDD2516AETA-7B-E | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M bits DDR SDRAM |
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