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参数资料
| 型号： | W9412G2CB-5 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | DRAM |
| 英文描述： | 4M X 32 DDR DRAM, 0.6 ns, PBGA144 |
| 封装： | 12 X 12 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LFBGA-144 |
| 文件页数： | 10/49页 |
| 文件大小： | 1936K |
| 代理商： | W9412G2CB-5 |
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W9412G2CB
Publication Release Date:Jul. 07, 2008
- 18 -
Revision A11
8. OPERATION MODE
The following table shows the operation commands.
8.1 Simplified Truth Table
SYM.
COMMAND
DEVICE
STATE
CKEn-1
CKEn
DM
(4)
BA0,BA1
A8
A0-A7
A9-
A11
CS
RAS
CAS
WE
ACT
Bank Active
Idle
(3)
H
X
V
L
H
PRE
Bank Precharge
Any
(3)
H
X
V
L
X
L
H
L
PREA
Precharge All
Any
H
X
H
X
L
H
L
WRIT
Write
Active
(3)
H
X
V
L
V
L
H
L
WRITA
Write with Auto-
precharge
Active
(3)
H
X
V
H
V
L
H
L
READ
Read
Active
(3)
H
X
V
L
V
L
H
L
H
READA
Read with Auto-
precharge
Active
(3)
H
X
V
H
V
L
H
L
H
MRS
Mode Register Set
Idle
H
X
L, L
C
L
EMRS
Extended Mode
Register Set
Idle
H
X
H, L
V
L
NOP
No Operation
Any
H
X
L
H
BST
Burst Read Stop
Active
H
X
L
H
L
DSL
Device Deselect
Any
H
X
H
X
AREF
Auto Refresh
Idle
H
X
L
H
SELF
Self Refresh Entry
Idle
H
L
X
L
H
SELEX
H
X
Self Refresh Exit
Idle
(Self
Refresh)
L
H
X
L
H
X
PD
H
X
Power Down
Mode Entry
Idle/
Active
(5)
H
L
X
L
H
X
PDEX
H
X
Power Down
Mode Exit
Any
(Power
Down)
L
H
X
L
H
X
WDE
Data Write Enable
Active
H
X
L
X
WDD
Data Write Disable
Active
H
X
H
X
Notes
:
1. V = Valid X = Don’t Care L = Low level H = High level
2. CKEn signal is input level when commands are issued.
CKEn-1 signal is input level one clock cycle before the commands are issued.
3. These are state designated by the BA0, BA1 signals.
4. DM0
DM3 (W9412G2CB).
5. Power Down Mode can not entry in the burst cycle.
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| W942508AH-8 | 32M X 8 DDR DRAM, 0.8 ns, PDSO66 |
| W942516AH-6 | 16M X 16 DDR DRAM, 0.7 ns, PDSO66 |
| W942516CH-75 | 16M X 16 DDR DRAM, 0.75 ns, PDSO66 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W9412G2IB | 制造商:WINBOND 制造商全称:Winbond 功能描述:1M × 4 BANKS × 32 BITS GDDR SDRAM |
| W9412G2IB4 | 制造商:WINBOND 制造商全称:Winbond 功能描述:Double Data Rate architecture; two data transfers per clock cycle |
| W9412G2IB-5 | 制造商:Winbond Electronics Corp 功能描述:8*16 DDR1 |
| W9412G6CH | 制造商:WINBOND 制造商全称:Winbond 功能描述:2M 】 4 BANKS 】 16 BITS DDR SDRAM |
| W9412G6IH | 制造商:WINBOND 制造商全称:Winbond 功能描述:2M × 4 BANKS × 16 BITS DDR SDRAM |
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