参数资料
型号: W9412G6JH-5I
厂商: Winbond Electronics
文件页数: 17/53页
文件大小: 0K
描述: IC DDR SDRAM 128MBIT 66TSOPII
标准包装: 200
格式 - 存储器: RAM
存储器类型: DDR SDRAM
存储容量: 128M(8Mx16)
速度: 200MHz
接口: 并联
电源电压: 2.3 V ~ 2.7 V
工作温度: -40°C ~ 85°C
封装/外壳: 66-TSSOP(0.400",10.16mm 宽)
供应商设备封装: 66-TSOP II
包装: 托盘
W9412G6JH
9. OPERATION MODE
The following table shows the operation commands.
9.1
Simplified Truth Table
SYM.
COMMAND
DEVICE
STATE
CKEn-1 CKEn
DM
(4)
BA0,
BA1
A10
A0-A9
,A11
CS
RAS
CAS
WE
ACT
Bank Active
Idle
(3)
H
X
X
V
V
V
L
L
H
H
Any
PRE
PREA
Bank Precharge
Precharge All
(3)
Any
H
H
X
X
X
X
V
X
L
H
X
X
L
L
L
L
H
H
L
L
WRIT
WRITA
READ
READA
Write
Write with Auto-
precharge
Read
Read with Auto-
precharge
Active
Active
Active
Active
(3)
(3)
(3)
(3)
H
H
H
H
X
X
X
X
X
X
X
X
V
V
V
V
L
H
L
H
V
V
V
V
L
L
L
L
H
H
H
H
L
L
L
L
L
L
H
H
MRS
Mode Register Set
Idle
H
X
X
L, L
L
L
L
L
EMRS
Extended Mode
Register Set
Idle
H
X
X
H, L
Op-Code
(6)
L
L
L
L
NOP
BST
DSL
AREF
SELF
SELEX
No Operation
Burst Read Stop
Device Deselect
Auto Refresh
Self Refresh
Entry
Self Refresh Exit
Any
Active
Any
Idle
Idle
Idle (Self
Refresh)
H
H
H
H
H
L
X
X
X
H
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
H
L
L
H
L
H
H
X
L
L
X
H
H
H
X
L
L
X
H
H
L
X
H
H
X
X
PD
Power Down
Mode Entry
Idle/
Active
(5)
H
L
X
X
X
X
H
L
X
H
X
H
X
X
PDEX
WDE
WDD
Power Down
Mode Exit
Data Write Enable
Data Write Disable
Any
(Power
Down)
Active
Active
L
H
H
H
X
X
X
L
H
X
X
X
X
X
X
X
X
X
H
L
X
X
X
H
X
X
X
H
X
X
X
X
X
X
Notes ?
1. V = Valid
X = Don’t Care
L = Low level
H = High level.
2. CKE n signal is input level when commands are issued
CKE n-1 signal is input level one clock cycle before the commands are issued
3. These are state designated by the BA0, BA1 signals.
4. LDM, UDM (W9412G6JH)
5. Power Down Mode can not entry in the burst cycle.
6. BA0, BA1 select either the Base or the Extended Mode Register (BA0 = 0, BA1 = 0 selects Mode Register; BA0 = 1, BA1 =
0 selects Extended Mode Register; other combinations of BA0, BA1 are reserved; A0~A11 provide the op-code to be written
to the selected Mode Register (MRS or EMRS).
Publication Release Date: Jan. 14, 2014
- 17 -
Revision: A04
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