hy5du281622ftp Hynix Semiconductor, hy5du281622ftp Datasheet - Page 7

• Manufacturer Part Number: hy5du281622ftp
• Description: 128mb Ddr Sdram
• Manufacturer: Hynix Semiconductor

Rev. 1.0 /June 2008
SIMPLIFIED COMMAND TRUTH TABLE
Write with Autoprecharge
Read with Autoprecharge
Precharge selected Bank
Extended Mode Register
Active Power
Power Down
Self Refresh
Down Mode
Precharge
Precharge All Banks
Mode Register Set
Mode
Read Burst Stop
Device Deselect
( H=Logic High Level, L=Logic Low Level, X=Don’t Care, V=Valid Data Input, OP Code=Operand Code, NOP=No Operation )
No Operation
Auto Refresh
Bank Active
Command
Write
Read
Set
Entry
Entry
Entry
Exit
Exit
Exit
CKEn-1
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
CKEn
H
H
H
X
X
X
X
X
X
X
X
H
L
L
L
CS
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS
H
H
H
H
H
H
H
L
X
L
L
L
X
X
X
X
V
L
L
X
CAS
X
H
H
H
H
X
H
X
H
X
H
X
V
L
L
L
L
L
L
HY5DU281622FT(P) Series
WE
H
X
H
H
H
H
X
H
X
H
X
H
X
V
L
L
L
L
L
ADDR
CA
CA
X
RA
OP code
OP code
X
X
X
X
X
X
A10
/AP
H
H
H
L
L
L
BA
V
V
V
X
V
Note
1,2
1,2
1,3
1,4
1,5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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