参数资料
型号: HY5DV281622AT-5
英文描述: SDRAM|DDR|4X2MX16|CMOS|TSSOP|66PIN|PLASTIC
中文描述: 内存|复员| 4X2MX16 |的CMOS | TSSOP封装| 66PIN |塑料
文件页数: 11/27页
文件大小: 273K
代理商: HY5DV281622AT-5
Rev. 0.3/May. 02
11
HY5DV281622AT
OPERATION COMMAND TRUTH TABLE - III
Current
State
/CS
/RAS
/CAS
/WE
Address
Command
Action
ROW
ACTIVATING
H
X
X
X
X
DSEL
NOP - Enter ROW ACT after tRCD
L
H
H
H
X
NOP
NOP - Enter ROW ACT after tRCD
L
H
H
L
X
BST
ILLEGAL
4
L
H
L
H
BA, CA, AP
READ/READAP
ILLEGAL
4,10
L
H
L
L
BA, CA, AP
WRITE/WRITEAP
ILLEGAL
4,10
L
L
H
H
BA, RA
ACT
ILLEGAL
4,9,10
L
L
H
L
BA, AP
PRE/PALL
ILLEGAL
4,10
L
L
L
H
X
AREF/SREF
ILLEGAL
11
L
L
L
L
OPCODE
MRS
ILLEGAL
11
WRITE
RECOVERING
H
X
X
X
X
DSEL
NOP - Enter ROW ACT after tWR
L
H
H
H
X
NOP
NOP - Enter ROW ACT after tWR
L
H
H
L
X
BST
ILLEGAL
4
L
H
L
H
BA, CA, AP
READ/READAP
ILLEGAL
L
H
L
L
BA, CA, AP
WRITE/WRITEAP
ILLEGAL
L
L
H
H
BA, RA
ACT
ILLEGAL
4,10
L
L
H
L
BA, AP
PRE/PALL
ILLEGAL
4,11
L
L
L
H
X
AREF/SREF
ILLEGAL
11
L
L
L
L
OPCODE
MRS
ILLEGAL
11
WRITE
RECOVERING
WITH
AUTOPRE-
CHARGE
H
X
X
X
X
DSEL
NOP - Enter precharge after tDPL
L
H
H
H
X
NOP
NOP - Enter precharge after tDPL
L
H
H
L
X
BST
ILLEGAL
4
L
H
L
H
BA, CA, AP
READ/READAP
ILLEGAL
4,8,10
L
H
L
L
BA, CA, AP
WRITE/WRITEAP
ILLEGAL
4,10
L
L
H
H
BA, RA
ACT
ILLEGAL
4,10
L
L
H
L
BA, AP
PRE/PALL
ILLEGAL
4,11
L
L
L
H
X
AREF/SREF
ILLEGAL
11
L
L
L
L
OPCODE
MRS
ILLEGAL
11
REFRESHING
H
X
X
X
X
DSEL
NOP - Enter IDLE after tRC
L
H
H
H
X
NOP
NOP - Enter IDLE after tRC
L
H
H
L
X
BST
ILLEGAL
11
L
H
L
H
BA, CA, AP
READ/READAP
ILLEGAL
11
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