HY5DU281622ETP-25 HYNIX [Hynix Semiconductor], HY5DU281622ETP-25 Datasheet - Page 7

• Manufacturer Part Number: HY5DU281622ETP-25
• Description: 128M(8Mx16) gDDR SDRAM
• Manufacturer: HYNIX [Hynix Semiconductor]

Rev. 1.0 / Oct. 2005
SIMPLIFIED COMMAND TRUTH TABLE
Note :
1. UDM, LDM states are Don’t Care. Refer to below Write Mask Truth Table.(note 6)
2. OP Code(Operand Code) consists of A0~A11 and BA0~BA1 used for Mode Register setting during Extended MRS or MRS. Before
3. If a Read with Auto-precharge command is detected by memory component in CK(n), then there will be no command presented
4. If a Write with Auto-precharge command is detected by memory component in CK(n), then there will be no command presented
5. If A10/AP is High when Precharge command being issued, BA0/BA1 are ignored and all banks are selected to be precharged.
6. In here, Don’t Care means logical value only, it doesn’t mean ’Don’t care for DC level of each signals’. DC level should be out of
Precharge Power
Extended Mode Register Set
Write with Autoprecharge
entering Mode Register Set mode, all banks must be in a precharge state and MRS command can be issued after tRP period from
Prechagre command.
to activate bank until CK(n+BL/2+tRP).
to activate bank until CK(n+BL/2+1+tDPL+tRP). Last Data-In to Prechage delay(tDPL) which is also called Write Recovery
Time(tWR) is needed to guarantee that the last data have been completely written.
V
Read with Autoprecharge
Active Power
Precharge selected Bank
Self Refresh
Down Mode
Down Mode
IHmin
Precharge All Banks
Mode Register Set
( H=Logic High Level, L=Logic Low Level, X=Don’t Care, V=Valid Data Input, OP Code=Operand Code, NOP=No Operation )
Read Burst Stop
Device Deselect
No Operation
Auto Refresh
~ V
Command
Bank Active
Write
Read
ILmax
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
H
X
X
X
X
X
X
X
X
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
L
X
L
L
L
L
X
X
X
X
V
X
CAS
X
H
H
H
H
X
H
X
H
X
H
X
V
L
L
L
L
L
L
WE
H
H
H
H
H
H
H
H
X
X
X
X
X
V
L
L
L
L
L
ADDR
1HY5DU281622ETP
CA
CA
X
RA
OP code
OP code
A10/
AP
X
H
H
H
X
X
X
X
X
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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