HY5DV641622AT データシートの表示（PDF） - Hynix Semiconductor
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HY5DV641622AT Datasheet PDF : 27 Pages
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OPERATION COMMAND TRUTH TABLE - I
HY5DV641622AT
Current
State
IDLE
ROW
ACTIVE
READ
WRITE
/CS /RAS /CAS /WE Address
Command
Action
H
X
X
X
X
DSEL
NOP or power down3
L
H
H
H
X
NOP
NOP or power down3
L
H
H
L
X
BST
ILLEGAL4
L
H
L
H
BA, CA, AP
READ/READAP
ILLEGAL4
L
H
L
L
BA, CA, AP WRITE/WRITEAP
ILLEGAL4
L
L
H
H
BA, RA
ACT
Row Activation
L
L
H
L
BA, AP
PRE/PALL
NOP
L
L
L
H
X
AREF/SREF
Auto Refresh or Self Refresh5
L
L
L
L
OPCODE
MRS
Mode Register Set
H
X
X
X
X
DSEL
NOP
L
H
H
H
X
NOP
NOP
L
H
H
L
X
BST
ILLEGAL4
L
H
L
H
BA, CA, AP
READ/READAP
Begin read : optional AP6
L
H
L
L
BA, CA, AP WRITE/WRITEAP
Begin write : optional AP6
L
L
H
H
BA, RA
ACT
ILLEGAL4
L
L
H
L
BA, AP
PRE/PALL
Precharge7
L
L
L
H
X
AREF/SREF
ILLEGAL11
L
L
L
L
OPCODE
MRS
ILLEGAL11
H
X
X
X
X
DSEL
Continue burst to end
L
H
H
H
X
NOP
Continue burst to end
L
H
H
L
X
BST
Terminate burst
L
H
L
H
BA, CA, AP
READ/READAP
Term burst, new read:optional AP8
L
H
L
L
BA, CA, AP WRITE/WRITEAP
ILLEGAL
L
L
H
H
BA, RA
ACT
ILLEGAL4
L
L
H
L
BA, AP
PRE/PALL
Term burst, precharge
L
L
L
H
X
AREF/SREF
ILLEGAL11
L
L
L
L
OPCODE
MRS
ILLEGAL11
H
X
X
X
X
DSEL
Continue burst to end
L
H
H
H
X
NOP
Continue burst to end
L
H
H
L
X
BST
ILLEGAL4
L
H
L
H
BA, CA, AP
READ/READAP
Term burst, new read:optional AP8
L
H
L
L
BA, CA, AP WRITE/WRITEAP Term burst, new write:optional AP
Rev. 0.7/May. 02
9
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