hy5du561622at Hynix Semiconductor, hy5du561622at Datasheet - Page 13

• Manufacturer Part Number: hy5du561622at
• Description: 256m-s Ddr Sdram
• Manufacturer: Hynix Semiconductor

Rev. 0.4/ May. 02
OPERATION COMMAND TRUTH TABLE-III
RECOVERING
RECOVERING
REFRESHING
ACTIVATING
AUTOPRE-
Current
CHARGE
WRITE
WRITE
State
WITH
ROW
/CS
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
/RAS
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
L
L
L
L
X
L
L
L
L
X
L
L
L
L
X
/CAS
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
L
L
L
L
X
L
L
L
L
X
L
L
L
L
X
L
/WE
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
BA, CA, AP
BA, CA, AP
BA, CA, AP
BA, CA, AP
BA, CA, AP
BA, CA, AP
BA, CA, AP
Address
OPCODE
OPCODE
OPCODE
BA, RA
BA, RA
BA, RA
BA, AP
BA, AP
BA, AP
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
WRITE/WRITEAP
WRITE/WRITEAP
WRITE/WRITEAP
READ/READAP
READ/READAP
READ/READAP
READ/READAP
Command
AREF/SREF
AREF/SREF
AREF/SREF
PRE/PALL
PRE/PALL
PRE/PALL
DSEL
DSEL
DSEL
DSEL
NOP
MRS
NOP
MRS
NOP
MRS
NOP
BST
ACT
BST
ACT
BST
ACT
BST
NOP - Enter ROW ACT after tRCD
NOP - Enter ROW ACT after tRCD
NOP - Enter precharge after tDPL
NOP - Enter precharge after tDPL
NOP - Enter ROW ACT after tWR
NOP - Enter ROW ACT after tWR
NOP - Enter IDLE after tRC
NOP - Enter IDLE after tRC
HY5DU56422A(L)T
HY5DU56822A(L)T
HY5DU561622A(L)T
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Action
4,9,10
4,8,10
4,10
4,10
4,10
4,10
4,11
4,10
4,10
4,11
11
11
11
11
11
11
11
11
4
4
4
13