參數(shù)資料
型號(hào): W9751G6JB-25A
廠商: WINBOND ELECTRONICS CORP
元件分類(lèi): DRAM
英文描述: 32M X 16 DDR DRAM, 0.4 ns, PBGA84
封裝: 12.50 X 8 MM, ROHS COMPLIANT, WBGA-84
文件頁(yè)數(shù): 27/86頁(yè)
文件大小: 1030K
代理商: W9751G6JB-25A
W9751G6JB
Publication Release Date: Mar. 10, 2010
- 33 -
Revision A02
8.4 Function Truth Table
CURRENT
STATE
CS
RAS
CAS
WE
ADDRESS
COMMAND
ACTION
NOTES
H
X
DSL
NOP or Power down
L
H
X
NOP
NOP or Power down
L
H
L
H
BA, CA, A10
READ/READA
ILLEGAL
1
L
H
L
BA, CA, A10
WRIT/WRITA
ILLEGAL
1
L
H
BA, RA
ACT
Row activating
L
H
L
BA, A10
PRE/PREA
Precharge/ Precharge all banks
L
H
X
AREF/SELF
Auto Refresh or Self Refresh
2
Idle
L
Op-Code
MRS/EMRS
Mode/Extended register
accessing
2
H
X
DSL
NOP
L
H
X
NOP
L
H
L
H
BA, CA, A10
READ/READA
Begin read
L
H
L
BA, CA, A10
WRIT/WRITA
Begin write
L
H
BA, RA
ACT
ILLEGAL
1
L
H
L
BA, A10
PRE/PREA
Precharge/ Precharge all banks
L
H
X
AREF/SELF
ILLEGAL
Banks
Active
L
Op-Code
MRS/EMRS
ILLEGAL
H
X
DSL
Continue burst to end
L
H
X
NOP
Continue burst to end
L
H
L
H
BA, CA, A10
READ/READA
Burst interrupt
1,3
L
H
L
BA, CA, A10
WRIT/WRITA
ILLEGAL
1
L
H
BA, RA
ACT
ILLEGAL
1
L
H
L
BA, A10
PRE/PREA
ILLEGAL
1
L
H
X
AREF/SELF
ILLEGAL
Read
L
Op-Code
MRS/EMRS
ILLEGAL
H
X
DSL
Continue burst to end
L
H
X
NOP
Continue burst to end
L
H
L
H
BA, CA, A10
READ/READA
ILLEGAL
1
L
H
L
BA, CA, A10
WRIT/WRITA
Burst interrupt
1,3
L
H
BA, RA
ACT
ILLEGAL
1
L
H
L
BA, A10
PRE/PREA
ILLEGAL
1
L
H
X
AREF/SELF
ILLEGAL
Write
L
Op-Code
MRS/EMRS
ILLEGAL
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