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參數(shù)資料
型號(hào)： AD484M1644VTA-8LI
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： Ascend Semiconductor Corporation(64Mb SDRAM)
中文描述： 登半導(dǎo)體公司（64MB內(nèi)存）
文件頁(yè)數(shù)： 11/20頁(yè)
文件大小： 85K
代理商： AD484M1644VTA-8LI
Preliminary
11
64Mb SDRAM
Ascend Semiconductor Corporation
Current
state
Addr.
Idle
X
X
4. Operative Command Table
Action
Nop or power down
Nop or power down
ILLEGAL
ILLEGAL
Row activating
Nop
Refresh or self refresh
Mode register accessing
Nop
Nop
Begin read : Determine AP
Begin write : Determine AP
ILLEGAL
Precharge
ILLEGAL
ILLEGAL
Continue burst to end
→
Row active
Continue burst to end
→
Row active
Burst stop
→
Row active
Terminate burst, new read : Determine AP
Terminate burst, start write : Determine AP
ILLEGAL
Terminate burst, pre-charging
ILLEGAL
ILLEGAL
Notes
2
2
3
3
BA/CA/A10
BA/CA/A10
BA/RA
BA, A10
X
Op-Code
X
X
BA/CA/A10
BA/CA/A10
BA/RA
BA, A10
X
Op-Code
X
X
X
BA/CA/A10
BA/CA/A10
BA/RA
BA/A10
X
Op-Code
4
Remark
H = High level, L = Low level, X = High or Low level (Don't care)
/CS
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
/R
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
L
X
H
H
H
L
L
L
L
L
/C
X
H
L
L
H
H
L
L
X
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
/W
X
X
H
L
H
L
H
L
X
X
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
Command
DESL
NOP or BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP or BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
Row active
5
5
3
6
4
Read
7
7, 8
3
4
Write
X
X
X
Continue burst to end
→
Write recovering
Continue burst to end
→
Write recovering
Burst stop
→
Row active
Terminate burst, start read : Determine AP 7, 8
Terminate burst, new write : Determine AP 7
ILLEGAL
Terminate burst, pre-charging
ILLEGAL
ILLEGAL
BA/CA/A10
BA/CA/A10
BA/RA
BA/A10
X
Op-Code
7,8
7
3
9
H
L
L
L
L
L
L
L
L
X
H
H
H
L
L
L
L
L
X
H
H
L
L
H
H
L
L
X
H
L
H
L
H
L
H
L
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
相關(guān)PDF資料
PDF描述
AD484M1644VTA-10I Ascend Semiconductor Corporation(64Mb SDRAM)
AD484M1644VTA-10L Ascend Semiconductor Corporation(64Mb SDRAM)
AD484M1644VTA-10LI Ascend Semiconductor Corporation(64Mb SDRAM)
AD484M1644VTA-15 Ascend Semiconductor Corporation(64Mb SDRAM)
AD484M1644VTA Ascend Semiconductor Corporation(64Mb SDRAM)
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AD48ABS 制造商:POP 功能描述:
AD48BS 制造商:POP 功能描述:
AD48H 制造商:POP 功能描述:
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